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International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 436
A Review On - PMBLDC Motor Drive with Power Factor correction
Controller
Ratnadeep Keer1, Monika Deshmukh2, Sayali Nachankar3, Sayali Pawar4, Rahul Salunkhe5
1Assistant Professor, Dept. of Electrical Engineering, VPM’s Maharshi Parshuram College of Engineering,
Maharashtra, India
2,3,4,5Students, Dept. of Electrical Engineering, VPM’s Maharshi Parshuram College of Engineering,
Maharashtra, India
----------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - The review on the different developments in
power factor correction techniques of BLDC motor is done in
this paper. The different techniques like SEPIC converter,
Isolated-Zeta converter, Boost converter, four quadrant
operation of BLDC motor, Landsman converter, BL-CSC
converter are discussed. For choosing the properconverterfor
BLDC motor drive for power factor correction the
corresponding simulation results for the convertersoperating
in particular mode of operation are observed for various
speeds. The comparison of the resultslikepercentageTHDand
power factor for these methods is compared.
Key Words: BLDC motor, PFC controller, THD
1. INTRODUCTION
In various industries such as medical, automotive,
appliances, aerospace, etc. the BLDC motors are used due to
their high efficiency, compact size, noiseless operation, low
maintenance, high power density, etc. There are no
commutators in BLDC motors hence the external means for
commutation is needed. Therefore the BLDC motor is
powered from a single phase supply through a diode bridge
rectifier and three phase voltage source inverter. The Hall
effect sensors are used for sensing the position of the rotor
which are placed at 1200 electrical degrees for three phase
motor. According to this rotor position the switches are
controlled using PI controller. There are six states of 600
rotation in electrical cycles and for each stat, one of the Hall
effect sensor shifts its state. In each state, out of three
terminals two are connected to positive and negative
terminal and one is left as a floating terminal.
Due to distortion in supply current drawn by the diode
bridge rectifier, the percentage THD is high and hence the
power factor is poor which is not acceptable. So a controller
is needed to improve the THD and power factor. There are
different topologieslikeSEPIC converter,Boostconverter,
Bridgeless converter, etc. these methods arediscussed
here.
The various considerations also has to be taken into account
while choosing the correct PFC converter for the system
such as cost, mode of operation etc. The cost of the sensors
such as Hall effect sensors increases the overall cost of the
drive which again depends on the mode of the PFC
converter. The PFC converters whichoperatesincontinuous
conduction mode of operation requires more number of
sensors for sensing supply voltage, supply current and dc
link voltage whereas those which operate in discontinuous
mode of operation requires only one sensor for dc link
voltage. But the stress on the switches in CCM is less than
that in DCM. So DCM mode of operation can be used in low
power application only. This paper presents different PFC
techniques to improvethepowerfactorandhencethepower
quality.
The control algorithms of BLDC motor arebecomeadvanced
which make them suitable for applications where precision
is important such as position control in machine tools,
robotics, high precision servos etc. Due to its features like
high power density, reduced volume, high torque, easy
control, simple hardwareandsoftwareandlowmaintenance
BLDC motors can be used in EVs/HEVs also.
2. RECENT DEVELOPMENTS IN BLDC MOTOR
DRIVES
2.1 Sensor-less BLDC control
Ganesh M. Kachare & Juber A. Shaikh [I] says overall cost
of the drive is increased due to the Hall sensors and they
cannotwithstandthetemperaturevariation.Duetoincreased
hardware they also decrease the reliability of the system. To
determine the voltage regulation without the Hall sensor
various methods have been introduced. In this concept a
bridgeless configuration of buck boostconverterusingFuzzy
logic controller is proposed which offers the elimination of
diode bridge rectifier and resulting in conduction loses
associated with it. The back EMF is used in fussy logic
proposed system to determine the rotor position. Stability
also increases due to this system. This system is applicable
for low power BLDC motor.
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 437
2.2 Bridgeless Dual Buck-Boost Converter Fed
BLDC Motor Drive
Mr. Sreekumar M B, Ms. Divya Sivan[2] presents different
topologies for feeding the BLDC motor drives using various
converter. In this a bridgeless configuration of buck boost
converter is proposing. This converter offers good power
quality at the AC mains with a filter performing the power
factor correction. By electronic commutation of the inverter
switches the speed control of the motor drive is performed.
For reducing the switching stress the converter is
operating in discontinuous inductor current mode. To
improve the power quality an L filter is used at the input. A
dual buck boost converter used in both positive and negative
cycle in which, one is operating at positive half cycle and the
other operating during the negative half cycle. To provide
alternating stator current to the motor driveavoltagesource
inverter is used. By the voltage feedback control of the
converter along with the filter operation the power factor
correction is done.
2.3 Isolated Zeta Converter
The power factor correction for BLDC motor achieved by
using Isolated-Zeta converter and can be used only for low
power applications. For electronic commutation of BLDC
motor, voltage source inverter (VSI) is used which is
operated in low frequency switching in order to reduce the
switching losses. The drive is proposed for wide speed
control range to achieve a unity power factor. Vashist Bist
and Bhim Singh[3] presents that by varying the dc link
voltage of VSI, speed can be controlled which reduces the
switching losses. Also the current sensors requiredforPWM
based current control can be eliminated. Isolated Zeta
converter which is used as power factor corrector is
designed to operate in DCM which has advantage over CCM
that it requires single voltage sensor for control of dc link
voltage, but the converter switches are subjected to high
stress. The duty ratio of PWM pulses of isolated Zeta
converter switch is changed to control the dc link voltage of
VSI. BLDC motor drive is feed through a three phase VSI
using the combination of diode bridge rectifier and PFC
converter. The control of isolated –Zeta converter is
achieved by using voltage follower approach which consist
of reference voltage generator, voltage error generator,
voltage controller and PWM generator. The rate ofchangeof
duty ratio of PWM pulses is limited by rate limiter and given
to PFC converter switch. A Hall effect sensor isusedforrotor
positionsensing.
Fig-1: Simulation Model [3]
Table -1: Speed of BLDC Motor with Changing DC Link
Voltage [3]
2.4 Landsman Converter
Banu S, Geetha V, Samadharmi U, Indumathy M[4] says
BLDC motor is highly reliable electrical drive if we use it for
power factorcorrection. Thismotor is fed by voltagesource
with DC-DC converter. The PID logic controller is used as
intelligent controller for BLDC motor. In this method low
cost arrangement is used from this we can get reliable
operation, speed regulationandwecanachieveunitypower
factor. By using designed PFCconverter improve thepower
quality at AC supply so it gives wide range of speed
control.Thecommutatorwhichiselectroniccommutatorfed
by VSI forPMBLDCM. The efficiencyofthesinglephaseIMis
in between 70-80%. In regular on-off control for
temperature control is not energy efficient and have many
disturbances in distribution system. So it can increases the
wear and tear and reducing the power factor. By using the
PMBLDC for drive gives results in improvement of energy
efficiency. In this for power factor improvement landsman
converter is used.
It gives smooth start up for the air conditioning system.
Avoiding any disturbances in input Ac supply voltage from
this method gets the study and smoothspeedcontrol.Italso
gives the low harmonics and higher efficiency due to
continuous switching. This motor is used in aerospace,
Sr.
No.
Ref.DC Link
Voltage(Vdc)
(v)
Voltage at ADC
of DSP (Vdc)
(v)
Speed of BLDC
Motor
(w) (rpm)
1. 50 0.428 530
2. 60 0.514 660
3. 70 0.6 780
4. 80 0.686 890
5. 90 0.771 1000
6. 100 0.857 1110
7. 110 0.943 1220
8. 120 1.028 1330
9. 130 1.114 1400
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 438
aircraft and mining applications.For speed control NFSS is
used and landsman converter is used for power factor
improvement. It provide the better power quality.
2.5 Direct Torque Controlled Brushless DC Motor
Drive
Salih Baris Ozturk, Oh Yang, Hamid A. Toliyat[5]
presents the different methods for correction of power
factor of direct torque controlled BLDC motor. The quasi
square wave current is obtained by selecting the inverter
voltage space vectors properly from a simple look up table
which helps to achieve faster torque response. There is a
control algorithm for controlling the duty ratio of the boost
converter. Boost PFC with average current control is used.
Digital controllers have advantages over conventional
analog controllers such as have high reliability, better
performance, less number of components for control. At
every sampling period, the instantaneousanalogsignalsare
sensed and using the ADC channels these signals are fed
back to the DSP. For simplification of the calculations per
unit system is used. Withconstantamplitudeandincreasing
rotational speed of the stator flux linkage, the torque can be
changed which allows fast torque response. The low ripple
torque control can be achieved by mounting three Hall
Effect sensors on stator at 1200
electrical degree apart. The
look up table with precision can be created by using the
values of αβ-axes motor back EMFs vs. electrical position
so as to obtain a good torque estimation and accurate αβ-
axes back EMF values. Underno-loadandatsteadystatethe
THD is 5.45% and 3.45% for input line current and voltage
respectively and power factor is 0.9997. For the load of
0.371 Nm THD is 5.05% and 3.43% for input line current
and voltage respectively.
2.6 Four Quadrant Operation And Active Power
Factor Correction
Dhaneesh Krishnan, Samskriti, Dr.K.P.Vittal[6]proposes
the study of four quadrant operation andactive power factor
correction of BLDC motor is done using the simulation in
MATLAB/Simulink. The review of different developments in
the BLDC motor drive such as sensor less control, fuzzy logic
control and direct torque control is alsogiven.Ifthedirection
of the current is within the motor, then the modes are
forward motoring and reverse braking modes whereas it is
forward braking and reverse motoring mode if the direction
of the current is opposite. The braking torque is experienced
by the current caused by the back EMF is flowing from motor
to resistive load. So by changing the resistor value, braking
time can be changed. The sign change of reference speed is
continuously monitored by the controllerwhichisbasicallya
PI controller. The trial and error method is generallyusedfor
tuning of PI controller. The boost converter topology is used
for the active power factor correction operating in CCM
mode. There are two controllers’ viz. voltage controller and
current controller. Both these controllers are also PI
controllers. The duty ratio is determined by PI controllers.
With increase in load, the power factor is improved.
2.7 A BL-CSC Converter
Bridgeless canonical switching cell converter by using
power factor correction method to drive BLDC motor. In this
to achieve a unity power factor, BL-CSCconverteroperatesat
a discontinuous inductor current mode by using single
voltage sensor. L. Pattathurani, Rajat Kumar Dwibedi, Dr. P.
Sivachidambaranathan [7] presents In this speed of BLDC
motor controlled by varying Dc bus voltage through PFC
converter which is fed by VSIto the BLDC motor. In the BLDC
motor by using electronically commutated switch the
switching losses are reduced. Due to elimination of Diode
Bridge rectifier conduction losses are low. With a proper
designing of PFC converter the combination of canonical
switching cell with inductor and capacitor is used to achieve
power factor correction operation.
BL-CSC converter providethe VSI to BLDCmotordrive.A
diode bridge rectifier introduces disadvantages such as
injecting high amount of harmonics in supply and draw peak
current from supply. Therefore PFC converter is used to
improve the power factor quality. To operate PFC converter
in a discontinuous conduction mode a current multiplier
approach is used to reduce low stresses. For this required
three sensors. Where a single voltage sensor is required for
PFC converter which is operating the discontinuous
conduction mode.
2.8 Boost Converter
Boost converter is a DC-DC converter which is used to
step up the output voltage. It can be used as a power factor
correction controller as if constructionandworkingissimple
which allows the simple control to keep the dc link voltage
constant which is feed to the PMBLDC motor. Ms. Snehal
Manik Kulkarni, Mr. P. M. Pujari, Dr. A. M. Mulla[8] presents
the model of PMBLDC motor drive using MATLAB/Simulink
for power factor correction. The system consist of PMBLDC
motor, VSI, boost converter, DBR, Hall Effect sensors. The
model for low- power adjustable speed drives with single
phase supply is powered through diode bridge rectifier with
smoothening capacitorand VSI is done in Simulink. The THD
forthis model is 63.89%. ForPFC topology boostconverteris
used to boost the voltage supplied to the VSI. Using this
topology the power factor is improved to 0.9994 and THD
gets reduced to 1.08%. Using the FFT analysis of source
current under steady state condition, the power quality is
monitored. PI controller is used forthe controlofvoltageand
speed. So this paper presents the PFC technique with related
circuit diagrams and simulation models. Alsothewaveforms
for different parameters are shown such as input source
voltage and input so urce current, rotor speed, torque, stator
current. The conclusion is made that the PF can be made
unity or can be improved by reducing the THD content of the
system. BY varying the DC link voltage of the VSI,thespeedof
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 439
the BLDC motor drive has been controlled.Therotorposition
feedback is used for the commutation of PMBLDC motor
drive.
Gishin Jacob George, Rakesh R, N. Arun [9] proposes the
power factor correction for PMBLDC motor drive using the
boost converter topology which is assumed to be operatedin
CCM mode. There are two controllers usedforPMBLDCdrive
and boostconverter which are speed and voltage controllers
respectively and are realized from PI controller. The VSI is
used for the electronic commutation. Hall Effect sensors are
used forsensing the rotor positionatthecommutationpoints
which is needed for the control of VSI. The modeling of the
speed controller, reference current generator, current
controller and PMBLDC motor are importantinthemodeling
of PMBLDC motor drive. The complete model is simulated in
MATLAB/Simulinksoftwareandtheresultsarecomparedfor
model withand without PFC controller. The THD percentage
without PFC is about 71.97% at rated torque and by using
PFC, the THD is reduced to 1.51%. Also the power factor is
improved and it is 0.991.From the results it isshown that the
dc link voltage changes with variations in speed and torque.
Fig.2: PMBLDC motor drive using Boost converter [10]
Ganesh M. Kachare & Juber A. Shaikh [10] proposesboost
converter configuration in permanent magnet brushless DC
motor drive to is used to overcome power quality problems
at utility of ac mains. The DC-DC boost converter is used
nearly for unity power factor and reduction of AC mains
current harmonics. Voltage controller is employed in input
side to provide controlled DC link voltage which is applied to
BLDC motor through voltage source inverter. By using speed
controller the speed control of PMBLDC motor with
maximum torque is to be achieved. In variable speed
application this is great significance. By using PI controller
both voltage controller and speed controller is to berealized.
In this to boost the input voltage at appropriate voltage
level which is fed to the voltage source inverter the boost
converter is used. Through the boost converter and voltage
source inverter the voltage supply is given to the BLDC
motor. At the input side for the control of voltage, voltage
error is produced when the dc link voltage is sensed and
compared with reference voltage.
The performance of PMBLDCM drive with PFC converter
shows that boost PFC topology used in proposedworkisbest
option for applications having rated voltage is higher than
single phase supply RMS voltage.
2.9 Single Current Sensor PMBLDC Motor Drive
The single ended primary inductorconverter(SEPIC)has
many advantages like non-inverting output, good efficiency
and low current ripple. This converter also can improve the
power quality at AC mains. Also it provide a desire DC link
voltage to PMBLDC motor. EMI generated bytheSEPICisless
than EMI generated by boost converter for the samevalue of
input inductor. Kanwar Pal, Saurabh Shukla, Sanjeev Singh
[11] presents PMBLDC motor drive with single current
sensor for variable speed variable torque using SEPIC i.e.
single- ended primary inductor converter as a power quality
controller. Ratings of the motor are 1.1kW,1400rpm,7.4Nm
and related converters and controllers are designed
according to these ratings. Effectiveness of the proposed
system is demonstrated in Matlab/Simulink under steady
state and transient conditions. A three phase voltage source
inverter is used to accomplish the operation of the PMBLDC
motor and rotorposition information throughHallsensorsis
used forthe commutation of three phase VSI. 71.56% of THD
is present in current at AC mains due to the filter capacitor.
SEPIC is a one of the DC-DC converter having the advantages
like non- inverting output, low current ripple and better
efficiency which is used for controlling the power quality.
Also,the EMI generated by SEPIC for same inductor input
value is less than that of the boost converter. This paper
presents the continuous conduction mode of operation of
SEPIC with low current ratings of switches. The shaft torque
and speed of PMBLDC motor can be controlled by phase
current and terminal voltage respectively. PI controller is
used forminimizing the error between referencevoltageand
actual voltage. The switching devices used in converter as
well as VSI is MOSFET due to its property of operating in
wide switching frequency range in low power applications.
When the simulation is run, the speed increases to rated
value from 700 rpm then decreasedto800rpm,sothetorque
changes accordingly. THDi reduces and it is 5% whereas
THDv is 2% and the power factor is 0.9991 at 2.2Nm which is
improved from 0.9656 at 0.5Nm. During steady state
condition THDiforspeed 1000 rpm, 1200 rpm and 1400rpm
are 4.21%, 2.57% and 2.35% respectively. Power factor is
improved from 0.9975 to 0.9995. During input voltage
variation THDi improves from 3.64% to 2.31% as the voltage
on rated speed and torque increasedfrom150Vto270V.The
power factor is 0.9994 for voltage from 170 to 270V. Crest
factor is 1.41 which is almost constant for all conditions.
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 440
2.10 Cuk Converter using SPWM Technique
C. Kowsalya, A. Nathiya, S. Shalini & S. Sheela[12] proposes
PFC based Cuk converter fed BLDC motor drive. BLDCM
drive actsas cost effectivesolutionforlowpowerapplication.
For the power factorcorrectionanimprovedpowerqualityat
the AC mains for a wide range of speed control a Cuk
converter is operate in DICM. For giving the input pulses to
the switches in converterandinvertertheSPWMtechniqueis
used. A discontinuous output inductor current is obtained.
When input inductor current and intermediate capacitor
voltage remain in continuous conduction operation. For the
complete range of speed control an improve PQ operation is
achieved.
Fig-3: Simulation model using Cuk converter[12]
Table- 2: Comparison Of Different Output [12]
Vd
(V)
Speed
(rpm)
THD of
Is (%)
DPF PF Is(A)
40 320 5.89 0.9959 0.9942 0.446
60 530 5.69 0.9965 0.9949 0.581
80 740 4.98 0.9971 0.9959 0.719
100 940 4.52 0.9978 0.9968 0.855
120 1150 4.11 0.9985 0.9977 0.993
140 1360 3.62 0.9992 0.9985 0.128
160 1560 2.85 0.9998 0.9994 0.265
180 1770 2.25 0.9999 0.9996 1.403
200 1980 1.81 0.9999 0.9997 1.537
2.11 Luo Converter
In this the bridgeless Luo converter is used for power
factor correction based BLDC motor drive by Amruta Shivaji
Anuse [13]. For the speed control of BLDC motor a voltage
sensor is used this power factor correction is implemented
at AC mains. For reducing the switching losses electronic
commutation is used. For wide range of speed control
proposed BLDC motor drive is designed. Due to high
switching frequency of PWM pulses for VSI the conventional
boost PFC for feeding a BLDC drive suffers from high
switching losses and which results in reduction of efficiency
of overall system. In this circuit consist of single phase
supply with BL-Luo converter and filter. BL-Luoconverter is
used to feed voltage source inverter driving a BLDC motor.
BL-Luo converter act as a power factor pre regulator.
2.12 Isolated-Zeta converter
Chandru K, MariarajaP,KuppuswamyA[14]designedthe
power factor correction converter which is the isolated Zeta
converter. To drive the compressor of conventional Air
Conditioner uses single phase Induction Motor and it also
provides inefficient temperature control operation. Due to
the operation, efficiency, ease of control maintenance and
size nowadays PMBLDCM drive is used.
In this proposed work single stage isolated Zeta
converter is used to avoid the complexity and cost. An
isolated Zeta converterinheritscontinuousconductionmode
of operation and therefore this converter is proposed for
PFC in a PMBLDCM drive. To reduce theswitchingstressand
to operate at low switching frequency the IGBTs are used in
n Voltage source inverter to provide the isolation between
the input and output stages the high frequency transformer
are used and it also provides flexibility for use of large
voltage ratio. By using equiva lent reference voltage at DC
Link a single stage Zeta converter is recommendedforspeed
control of system.
2.13 Voltage Control
Balahemalatha.R ,Sarmila Har Beagam. K ,Srinivas. K.
N[15] presents a paper in which SEPIC DC to DC converter is
used as PFC converter for PMBLDCM. It is fed through diode
bridge rectifier from a single phase AC mains to operate the
PMBLDCM as an electronic commutatora3PhaseVSIisused.
PMBLDCM has developed the torque which is proportion to
the phase current and its back EMF which also proportion to
the speed PMBLDC Drive consist of VSI and PMBLDCM.
Due to the continuous input and output currents, small
output filter and wide output voltage range as compared to
other single switch converters a SEPIC DC to DC converter is
used as PFC convert is used. By using the capacitive energy
transfer the SEPIC DC to DC converter controls the dc link
voltage and this results in non-pulsating input and output
current.
The PFC converter is operated as high switching
frequency for effective and fast control. This PFC converter
has anadvantage of a small size filter. For the high frequency
operation a MOSFET is used and IGBT are used in the VSI
Bridge feeding the PMBLDC due to its low frequency
operation as compared to PFC converter.
2.14 Landsman Converter
Y.Sree Harsha , R. Hariharan [16] proposed a paper in
which utilizing just a single controller the Landsman
Converter performs power factor correctionandDCvoltage
control in single stage. If the PFC is planned properly it not
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 441
only enhances the power quality at AC mains but also gives
variety of speed control. The cost effective solution for low
power applications is PFC based on CUK converter. By
changing the DC transport voltage of a VSI the speed of the
BLDC motor can be changed. It gives better power quality.
The comparison between speed and power factor is
explained here.
Table-3: Speed V/S Power Factor [16]
SPEED IN RPM POWER FACTOR
1200 0.975
1100 0.97
1000 0.965
900 0.955
3. CONCLUSIONS
The different developments in the BLDC motor drive are
discussed. From the discussion it is concluded that by
keeping the dc link voltage constant, the speed of the BLDC
motor can be controlled. The Isolated -Zeta converter
operated in discontinuous conduction mode of operation
hence it is advantageous from the cost point of view as it
requires less number of sensors. But theconverterswitches
are subjected to high stresses hence can be used for low
power applications only. For the fast control of speed and
torque, the direct torque control method is advantageous
but it is quite difficult to design. The fuzzy logic controller
technique can be used for the fast response which does not
require the plant mathematical model for the system
control. Sensor less control can decreases the cost but the
transient conditions can be deteriorated by the phase
shifter. Also the dynamic performance may get affecteddue
to nonlinearity and dependence of it on rotor position. The
boost converter operated in the continuous conduction
mode of operation is the effective method for power factor
correction. Boostconverter can be used for theapplications
where the voltage ratings are higher than the RMS value of
the supply voltage. Also theconverteroperateincontinuous
conduction mode(CCM)allows it to operate forhigh power
applications as there are less stresses on the converter
switches.
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on Electrical Engineering and Informatics 2015 August
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ConverterusingSPWMTechnique”International Journal
of Current Research and Modern Education (IJCRME)
ISSN (Online): 2455 – 5428 & Impact Factor: 3.165
Special Issue, NCFTCCPS – 2016.
[13] Amruta Shivaji Anuse, "Power factor correction based
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 442
BLDC motor drive” International Journal of
Multidisciplinary Research and Development Online
ISSN: 2349-4182, Print ISSN: 2349-5979,ImpactFactor:
RJIF 5.72 www.allsubjectjournal.com Volume4;Issue7;
July 2017; Page No. 305-307.
[14] Chandru K, Mariaraja P, Kuppuswamy A, “Power Factor
Correction in Zeta Converter FedPMBLDCMDriveforan
Air Conditioner” The International Journal Of
Engineering And Science (IJES) Volume 3 Issue 2 Pages
40-45 2014 ISSN: 2319 – 1813 ISSN: 2319 – 1805.
[15] Balahemalatha.R ,Sarmila Har Beagam. K ,Srinivas.K. N
“A Permanent Magnet BLDC Motor Drive Based Voltage
Control Power Factor Correction SEPIC Converter”
International Journal of Scientific & Engineering
Research, Volume 5, Issue 4, April- 2014 16 ISSN 2229-
5518.
[16] Y.Sree Harsha , R. Hariharan “Improving Power Factor
Using Landsman Converter in PMBLDC Motor”
International Journal of Pure and Applied Mathematics
Volume 119 No. 17 2018, 3261-3267.

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PMBLDC Motor Drive PFC Review

  • 1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 436 A Review On - PMBLDC Motor Drive with Power Factor correction Controller Ratnadeep Keer1, Monika Deshmukh2, Sayali Nachankar3, Sayali Pawar4, Rahul Salunkhe5 1Assistant Professor, Dept. of Electrical Engineering, VPM’s Maharshi Parshuram College of Engineering, Maharashtra, India 2,3,4,5Students, Dept. of Electrical Engineering, VPM’s Maharshi Parshuram College of Engineering, Maharashtra, India ----------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - The review on the different developments in power factor correction techniques of BLDC motor is done in this paper. The different techniques like SEPIC converter, Isolated-Zeta converter, Boost converter, four quadrant operation of BLDC motor, Landsman converter, BL-CSC converter are discussed. For choosing the properconverterfor BLDC motor drive for power factor correction the corresponding simulation results for the convertersoperating in particular mode of operation are observed for various speeds. The comparison of the resultslikepercentageTHDand power factor for these methods is compared. Key Words: BLDC motor, PFC controller, THD 1. INTRODUCTION In various industries such as medical, automotive, appliances, aerospace, etc. the BLDC motors are used due to their high efficiency, compact size, noiseless operation, low maintenance, high power density, etc. There are no commutators in BLDC motors hence the external means for commutation is needed. Therefore the BLDC motor is powered from a single phase supply through a diode bridge rectifier and three phase voltage source inverter. The Hall effect sensors are used for sensing the position of the rotor which are placed at 1200 electrical degrees for three phase motor. According to this rotor position the switches are controlled using PI controller. There are six states of 600 rotation in electrical cycles and for each stat, one of the Hall effect sensor shifts its state. In each state, out of three terminals two are connected to positive and negative terminal and one is left as a floating terminal. Due to distortion in supply current drawn by the diode bridge rectifier, the percentage THD is high and hence the power factor is poor which is not acceptable. So a controller is needed to improve the THD and power factor. There are different topologieslikeSEPIC converter,Boostconverter, Bridgeless converter, etc. these methods arediscussed here. The various considerations also has to be taken into account while choosing the correct PFC converter for the system such as cost, mode of operation etc. The cost of the sensors such as Hall effect sensors increases the overall cost of the drive which again depends on the mode of the PFC converter. The PFC converters whichoperatesincontinuous conduction mode of operation requires more number of sensors for sensing supply voltage, supply current and dc link voltage whereas those which operate in discontinuous mode of operation requires only one sensor for dc link voltage. But the stress on the switches in CCM is less than that in DCM. So DCM mode of operation can be used in low power application only. This paper presents different PFC techniques to improvethepowerfactorandhencethepower quality. The control algorithms of BLDC motor arebecomeadvanced which make them suitable for applications where precision is important such as position control in machine tools, robotics, high precision servos etc. Due to its features like high power density, reduced volume, high torque, easy control, simple hardwareandsoftwareandlowmaintenance BLDC motors can be used in EVs/HEVs also. 2. RECENT DEVELOPMENTS IN BLDC MOTOR DRIVES 2.1 Sensor-less BLDC control Ganesh M. Kachare & Juber A. Shaikh [I] says overall cost of the drive is increased due to the Hall sensors and they cannotwithstandthetemperaturevariation.Duetoincreased hardware they also decrease the reliability of the system. To determine the voltage regulation without the Hall sensor various methods have been introduced. In this concept a bridgeless configuration of buck boostconverterusingFuzzy logic controller is proposed which offers the elimination of diode bridge rectifier and resulting in conduction loses associated with it. The back EMF is used in fussy logic proposed system to determine the rotor position. Stability also increases due to this system. This system is applicable for low power BLDC motor.
  • 2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 437 2.2 Bridgeless Dual Buck-Boost Converter Fed BLDC Motor Drive Mr. Sreekumar M B, Ms. Divya Sivan[2] presents different topologies for feeding the BLDC motor drives using various converter. In this a bridgeless configuration of buck boost converter is proposing. This converter offers good power quality at the AC mains with a filter performing the power factor correction. By electronic commutation of the inverter switches the speed control of the motor drive is performed. For reducing the switching stress the converter is operating in discontinuous inductor current mode. To improve the power quality an L filter is used at the input. A dual buck boost converter used in both positive and negative cycle in which, one is operating at positive half cycle and the other operating during the negative half cycle. To provide alternating stator current to the motor driveavoltagesource inverter is used. By the voltage feedback control of the converter along with the filter operation the power factor correction is done. 2.3 Isolated Zeta Converter The power factor correction for BLDC motor achieved by using Isolated-Zeta converter and can be used only for low power applications. For electronic commutation of BLDC motor, voltage source inverter (VSI) is used which is operated in low frequency switching in order to reduce the switching losses. The drive is proposed for wide speed control range to achieve a unity power factor. Vashist Bist and Bhim Singh[3] presents that by varying the dc link voltage of VSI, speed can be controlled which reduces the switching losses. Also the current sensors requiredforPWM based current control can be eliminated. Isolated Zeta converter which is used as power factor corrector is designed to operate in DCM which has advantage over CCM that it requires single voltage sensor for control of dc link voltage, but the converter switches are subjected to high stress. The duty ratio of PWM pulses of isolated Zeta converter switch is changed to control the dc link voltage of VSI. BLDC motor drive is feed through a three phase VSI using the combination of diode bridge rectifier and PFC converter. The control of isolated –Zeta converter is achieved by using voltage follower approach which consist of reference voltage generator, voltage error generator, voltage controller and PWM generator. The rate ofchangeof duty ratio of PWM pulses is limited by rate limiter and given to PFC converter switch. A Hall effect sensor isusedforrotor positionsensing. Fig-1: Simulation Model [3] Table -1: Speed of BLDC Motor with Changing DC Link Voltage [3] 2.4 Landsman Converter Banu S, Geetha V, Samadharmi U, Indumathy M[4] says BLDC motor is highly reliable electrical drive if we use it for power factorcorrection. Thismotor is fed by voltagesource with DC-DC converter. The PID logic controller is used as intelligent controller for BLDC motor. In this method low cost arrangement is used from this we can get reliable operation, speed regulationandwecanachieveunitypower factor. By using designed PFCconverter improve thepower quality at AC supply so it gives wide range of speed control.Thecommutatorwhichiselectroniccommutatorfed by VSI forPMBLDCM. The efficiencyofthesinglephaseIMis in between 70-80%. In regular on-off control for temperature control is not energy efficient and have many disturbances in distribution system. So it can increases the wear and tear and reducing the power factor. By using the PMBLDC for drive gives results in improvement of energy efficiency. In this for power factor improvement landsman converter is used. It gives smooth start up for the air conditioning system. Avoiding any disturbances in input Ac supply voltage from this method gets the study and smoothspeedcontrol.Italso gives the low harmonics and higher efficiency due to continuous switching. This motor is used in aerospace, Sr. No. Ref.DC Link Voltage(Vdc) (v) Voltage at ADC of DSP (Vdc) (v) Speed of BLDC Motor (w) (rpm) 1. 50 0.428 530 2. 60 0.514 660 3. 70 0.6 780 4. 80 0.686 890 5. 90 0.771 1000 6. 100 0.857 1110 7. 110 0.943 1220 8. 120 1.028 1330 9. 130 1.114 1400
  • 3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 438 aircraft and mining applications.For speed control NFSS is used and landsman converter is used for power factor improvement. It provide the better power quality. 2.5 Direct Torque Controlled Brushless DC Motor Drive Salih Baris Ozturk, Oh Yang, Hamid A. Toliyat[5] presents the different methods for correction of power factor of direct torque controlled BLDC motor. The quasi square wave current is obtained by selecting the inverter voltage space vectors properly from a simple look up table which helps to achieve faster torque response. There is a control algorithm for controlling the duty ratio of the boost converter. Boost PFC with average current control is used. Digital controllers have advantages over conventional analog controllers such as have high reliability, better performance, less number of components for control. At every sampling period, the instantaneousanalogsignalsare sensed and using the ADC channels these signals are fed back to the DSP. For simplification of the calculations per unit system is used. Withconstantamplitudeandincreasing rotational speed of the stator flux linkage, the torque can be changed which allows fast torque response. The low ripple torque control can be achieved by mounting three Hall Effect sensors on stator at 1200 electrical degree apart. The look up table with precision can be created by using the values of αβ-axes motor back EMFs vs. electrical position so as to obtain a good torque estimation and accurate αβ- axes back EMF values. Underno-loadandatsteadystatethe THD is 5.45% and 3.45% for input line current and voltage respectively and power factor is 0.9997. For the load of 0.371 Nm THD is 5.05% and 3.43% for input line current and voltage respectively. 2.6 Four Quadrant Operation And Active Power Factor Correction Dhaneesh Krishnan, Samskriti, Dr.K.P.Vittal[6]proposes the study of four quadrant operation andactive power factor correction of BLDC motor is done using the simulation in MATLAB/Simulink. The review of different developments in the BLDC motor drive such as sensor less control, fuzzy logic control and direct torque control is alsogiven.Ifthedirection of the current is within the motor, then the modes are forward motoring and reverse braking modes whereas it is forward braking and reverse motoring mode if the direction of the current is opposite. The braking torque is experienced by the current caused by the back EMF is flowing from motor to resistive load. So by changing the resistor value, braking time can be changed. The sign change of reference speed is continuously monitored by the controllerwhichisbasicallya PI controller. The trial and error method is generallyusedfor tuning of PI controller. The boost converter topology is used for the active power factor correction operating in CCM mode. There are two controllers’ viz. voltage controller and current controller. Both these controllers are also PI controllers. The duty ratio is determined by PI controllers. With increase in load, the power factor is improved. 2.7 A BL-CSC Converter Bridgeless canonical switching cell converter by using power factor correction method to drive BLDC motor. In this to achieve a unity power factor, BL-CSCconverteroperatesat a discontinuous inductor current mode by using single voltage sensor. L. Pattathurani, Rajat Kumar Dwibedi, Dr. P. Sivachidambaranathan [7] presents In this speed of BLDC motor controlled by varying Dc bus voltage through PFC converter which is fed by VSIto the BLDC motor. In the BLDC motor by using electronically commutated switch the switching losses are reduced. Due to elimination of Diode Bridge rectifier conduction losses are low. With a proper designing of PFC converter the combination of canonical switching cell with inductor and capacitor is used to achieve power factor correction operation. BL-CSC converter providethe VSI to BLDCmotordrive.A diode bridge rectifier introduces disadvantages such as injecting high amount of harmonics in supply and draw peak current from supply. Therefore PFC converter is used to improve the power factor quality. To operate PFC converter in a discontinuous conduction mode a current multiplier approach is used to reduce low stresses. For this required three sensors. Where a single voltage sensor is required for PFC converter which is operating the discontinuous conduction mode. 2.8 Boost Converter Boost converter is a DC-DC converter which is used to step up the output voltage. It can be used as a power factor correction controller as if constructionandworkingissimple which allows the simple control to keep the dc link voltage constant which is feed to the PMBLDC motor. Ms. Snehal Manik Kulkarni, Mr. P. M. Pujari, Dr. A. M. Mulla[8] presents the model of PMBLDC motor drive using MATLAB/Simulink for power factor correction. The system consist of PMBLDC motor, VSI, boost converter, DBR, Hall Effect sensors. The model for low- power adjustable speed drives with single phase supply is powered through diode bridge rectifier with smoothening capacitorand VSI is done in Simulink. The THD forthis model is 63.89%. ForPFC topology boostconverteris used to boost the voltage supplied to the VSI. Using this topology the power factor is improved to 0.9994 and THD gets reduced to 1.08%. Using the FFT analysis of source current under steady state condition, the power quality is monitored. PI controller is used forthe controlofvoltageand speed. So this paper presents the PFC technique with related circuit diagrams and simulation models. Alsothewaveforms for different parameters are shown such as input source voltage and input so urce current, rotor speed, torque, stator current. The conclusion is made that the PF can be made unity or can be improved by reducing the THD content of the system. BY varying the DC link voltage of the VSI,thespeedof
  • 4. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 439 the BLDC motor drive has been controlled.Therotorposition feedback is used for the commutation of PMBLDC motor drive. Gishin Jacob George, Rakesh R, N. Arun [9] proposes the power factor correction for PMBLDC motor drive using the boost converter topology which is assumed to be operatedin CCM mode. There are two controllers usedforPMBLDCdrive and boostconverter which are speed and voltage controllers respectively and are realized from PI controller. The VSI is used for the electronic commutation. Hall Effect sensors are used forsensing the rotor positionatthecommutationpoints which is needed for the control of VSI. The modeling of the speed controller, reference current generator, current controller and PMBLDC motor are importantinthemodeling of PMBLDC motor drive. The complete model is simulated in MATLAB/Simulinksoftwareandtheresultsarecomparedfor model withand without PFC controller. The THD percentage without PFC is about 71.97% at rated torque and by using PFC, the THD is reduced to 1.51%. Also the power factor is improved and it is 0.991.From the results it isshown that the dc link voltage changes with variations in speed and torque. Fig.2: PMBLDC motor drive using Boost converter [10] Ganesh M. Kachare & Juber A. Shaikh [10] proposesboost converter configuration in permanent magnet brushless DC motor drive to is used to overcome power quality problems at utility of ac mains. The DC-DC boost converter is used nearly for unity power factor and reduction of AC mains current harmonics. Voltage controller is employed in input side to provide controlled DC link voltage which is applied to BLDC motor through voltage source inverter. By using speed controller the speed control of PMBLDC motor with maximum torque is to be achieved. In variable speed application this is great significance. By using PI controller both voltage controller and speed controller is to berealized. In this to boost the input voltage at appropriate voltage level which is fed to the voltage source inverter the boost converter is used. Through the boost converter and voltage source inverter the voltage supply is given to the BLDC motor. At the input side for the control of voltage, voltage error is produced when the dc link voltage is sensed and compared with reference voltage. The performance of PMBLDCM drive with PFC converter shows that boost PFC topology used in proposedworkisbest option for applications having rated voltage is higher than single phase supply RMS voltage. 2.9 Single Current Sensor PMBLDC Motor Drive The single ended primary inductorconverter(SEPIC)has many advantages like non-inverting output, good efficiency and low current ripple. This converter also can improve the power quality at AC mains. Also it provide a desire DC link voltage to PMBLDC motor. EMI generated bytheSEPICisless than EMI generated by boost converter for the samevalue of input inductor. Kanwar Pal, Saurabh Shukla, Sanjeev Singh [11] presents PMBLDC motor drive with single current sensor for variable speed variable torque using SEPIC i.e. single- ended primary inductor converter as a power quality controller. Ratings of the motor are 1.1kW,1400rpm,7.4Nm and related converters and controllers are designed according to these ratings. Effectiveness of the proposed system is demonstrated in Matlab/Simulink under steady state and transient conditions. A three phase voltage source inverter is used to accomplish the operation of the PMBLDC motor and rotorposition information throughHallsensorsis used forthe commutation of three phase VSI. 71.56% of THD is present in current at AC mains due to the filter capacitor. SEPIC is a one of the DC-DC converter having the advantages like non- inverting output, low current ripple and better efficiency which is used for controlling the power quality. Also,the EMI generated by SEPIC for same inductor input value is less than that of the boost converter. This paper presents the continuous conduction mode of operation of SEPIC with low current ratings of switches. The shaft torque and speed of PMBLDC motor can be controlled by phase current and terminal voltage respectively. PI controller is used forminimizing the error between referencevoltageand actual voltage. The switching devices used in converter as well as VSI is MOSFET due to its property of operating in wide switching frequency range in low power applications. When the simulation is run, the speed increases to rated value from 700 rpm then decreasedto800rpm,sothetorque changes accordingly. THDi reduces and it is 5% whereas THDv is 2% and the power factor is 0.9991 at 2.2Nm which is improved from 0.9656 at 0.5Nm. During steady state condition THDiforspeed 1000 rpm, 1200 rpm and 1400rpm are 4.21%, 2.57% and 2.35% respectively. Power factor is improved from 0.9975 to 0.9995. During input voltage variation THDi improves from 3.64% to 2.31% as the voltage on rated speed and torque increasedfrom150Vto270V.The power factor is 0.9994 for voltage from 170 to 270V. Crest factor is 1.41 which is almost constant for all conditions.
  • 5. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 440 2.10 Cuk Converter using SPWM Technique C. Kowsalya, A. Nathiya, S. Shalini & S. Sheela[12] proposes PFC based Cuk converter fed BLDC motor drive. BLDCM drive actsas cost effectivesolutionforlowpowerapplication. For the power factorcorrectionanimprovedpowerqualityat the AC mains for a wide range of speed control a Cuk converter is operate in DICM. For giving the input pulses to the switches in converterandinvertertheSPWMtechniqueis used. A discontinuous output inductor current is obtained. When input inductor current and intermediate capacitor voltage remain in continuous conduction operation. For the complete range of speed control an improve PQ operation is achieved. Fig-3: Simulation model using Cuk converter[12] Table- 2: Comparison Of Different Output [12] Vd (V) Speed (rpm) THD of Is (%) DPF PF Is(A) 40 320 5.89 0.9959 0.9942 0.446 60 530 5.69 0.9965 0.9949 0.581 80 740 4.98 0.9971 0.9959 0.719 100 940 4.52 0.9978 0.9968 0.855 120 1150 4.11 0.9985 0.9977 0.993 140 1360 3.62 0.9992 0.9985 0.128 160 1560 2.85 0.9998 0.9994 0.265 180 1770 2.25 0.9999 0.9996 1.403 200 1980 1.81 0.9999 0.9997 1.537 2.11 Luo Converter In this the bridgeless Luo converter is used for power factor correction based BLDC motor drive by Amruta Shivaji Anuse [13]. For the speed control of BLDC motor a voltage sensor is used this power factor correction is implemented at AC mains. For reducing the switching losses electronic commutation is used. For wide range of speed control proposed BLDC motor drive is designed. Due to high switching frequency of PWM pulses for VSI the conventional boost PFC for feeding a BLDC drive suffers from high switching losses and which results in reduction of efficiency of overall system. In this circuit consist of single phase supply with BL-Luo converter and filter. BL-Luoconverter is used to feed voltage source inverter driving a BLDC motor. BL-Luo converter act as a power factor pre regulator. 2.12 Isolated-Zeta converter Chandru K, MariarajaP,KuppuswamyA[14]designedthe power factor correction converter which is the isolated Zeta converter. To drive the compressor of conventional Air Conditioner uses single phase Induction Motor and it also provides inefficient temperature control operation. Due to the operation, efficiency, ease of control maintenance and size nowadays PMBLDCM drive is used. In this proposed work single stage isolated Zeta converter is used to avoid the complexity and cost. An isolated Zeta converterinheritscontinuousconductionmode of operation and therefore this converter is proposed for PFC in a PMBLDCM drive. To reduce theswitchingstressand to operate at low switching frequency the IGBTs are used in n Voltage source inverter to provide the isolation between the input and output stages the high frequency transformer are used and it also provides flexibility for use of large voltage ratio. By using equiva lent reference voltage at DC Link a single stage Zeta converter is recommendedforspeed control of system. 2.13 Voltage Control Balahemalatha.R ,Sarmila Har Beagam. K ,Srinivas. K. N[15] presents a paper in which SEPIC DC to DC converter is used as PFC converter for PMBLDCM. It is fed through diode bridge rectifier from a single phase AC mains to operate the PMBLDCM as an electronic commutatora3PhaseVSIisused. PMBLDCM has developed the torque which is proportion to the phase current and its back EMF which also proportion to the speed PMBLDC Drive consist of VSI and PMBLDCM. Due to the continuous input and output currents, small output filter and wide output voltage range as compared to other single switch converters a SEPIC DC to DC converter is used as PFC convert is used. By using the capacitive energy transfer the SEPIC DC to DC converter controls the dc link voltage and this results in non-pulsating input and output current. The PFC converter is operated as high switching frequency for effective and fast control. This PFC converter has anadvantage of a small size filter. For the high frequency operation a MOSFET is used and IGBT are used in the VSI Bridge feeding the PMBLDC due to its low frequency operation as compared to PFC converter. 2.14 Landsman Converter Y.Sree Harsha , R. Hariharan [16] proposed a paper in which utilizing just a single controller the Landsman Converter performs power factor correctionandDCvoltage control in single stage. If the PFC is planned properly it not
  • 6. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 441 only enhances the power quality at AC mains but also gives variety of speed control. The cost effective solution for low power applications is PFC based on CUK converter. By changing the DC transport voltage of a VSI the speed of the BLDC motor can be changed. It gives better power quality. The comparison between speed and power factor is explained here. Table-3: Speed V/S Power Factor [16] SPEED IN RPM POWER FACTOR 1200 0.975 1100 0.97 1000 0.965 900 0.955 3. CONCLUSIONS The different developments in the BLDC motor drive are discussed. From the discussion it is concluded that by keeping the dc link voltage constant, the speed of the BLDC motor can be controlled. The Isolated -Zeta converter operated in discontinuous conduction mode of operation hence it is advantageous from the cost point of view as it requires less number of sensors. But theconverterswitches are subjected to high stresses hence can be used for low power applications only. For the fast control of speed and torque, the direct torque control method is advantageous but it is quite difficult to design. The fuzzy logic controller technique can be used for the fast response which does not require the plant mathematical model for the system control. Sensor less control can decreases the cost but the transient conditions can be deteriorated by the phase shifter. Also the dynamic performance may get affecteddue to nonlinearity and dependence of it on rotor position. The boost converter operated in the continuous conduction mode of operation is the effective method for power factor correction. Boostconverter can be used for theapplications where the voltage ratings are higher than the RMS value of the supply voltage. Also theconverteroperateincontinuous conduction mode(CCM)allows it to operate forhigh power applications as there are less stresses on the converter switches. REFERENCES [1] Ganesh M. Kachare & Juber A. Shaikh, “A Sensor- Less BLDC Control for Power Factor Correction using Back EMF” International Journal of Innovative Research in Technology, Science & Engineering (IJIRTSE) ISSN: 2395-5619, Volume - 1, Issue - 3. May 2015. [2] Mr. Sreekumar M B, Ms. Divya Sivan, “Bridgeless Dual Buck-Boost Converter Fed BLDC Motor Drive with Power Factor Correction” International Journal of Advanced Information in Engineering Technology (IJAIET) ISSN: 2454-6933 Vol.3, No.5, May 2016. [3] Vashist Bist and Bhim Singh, “A Brushless DC Motor Drive with Power Factor Correction using Isolated-Zeta Converter” IEEE Transactions on IndustrialInformatics. [4] Banu S, Geetha V, Samadharmi U, Indumathy M, “Implementation of Landsman Converter for Power Factor Correction in BLDC Motor” International Journal of Innovative Research in Science, Engineering and Technology Vol.7, Special Issue 2, March 2018. [5] Salih Baris Ozturk, Oh Yang, Hamid A. Toliyat, “Power Factor Correction of Direct TorqueControlledBrushless DC Motor Drive” IEEE. [6] Dhaneesh Krishnan, Samskriti, Dr. K. P. Vittal, “Study of Four-quadrant Operation and Active Power Factor Correction” 2015 IEEE10thInternational Conferenceon Industrial and Information Systems, ICIIS2015,Dec.18- 20,2015, Sri Lanka. [7] L. Pattathurani, Rajat Kumar Dwibedi, Dr. P. Sivachidambaranathan, “A BL-CSC converter fed BLDC motor drive with power factor correction” IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)e- ISSN: 2278-1676,p- ISSN: 2320-3331, Volume 10, Issue 6 Ver. I (Nov – Dec. 2015), PP 89-97. [8] Ms. Snehal Manik Kulkarni, Mr. P. M. Pujari, Dr. A.M. Mulla, “Brushless DC Motor Drive with Power Factor Correction Controller Technique” International Conference on Energy, Communication, Data Analytics and Soft Computing (ICECDS-2017). [9] Gishin Jacob George, Rakesh R, N. Arun,“PMBLDCMotor Drive with Power Factor Correction Controller” 2012 International Conferenceon Computing,Electronicsand Electrical Technologies [ICCEET]. [10] Kanwar P Ganesh M. Kachare & Juber A. Shaikh, “PMBLDC Motor Drive with Boost Converter as Power Factor Correction Controller” Imperial Journal of Interdisciplinary Research (IJIR) Vol-3, Issue-10, 2017 ISSN: 2454-1362, http://www.onlinejournal.in. [11] Kanwar Pal, Saurabh Shukla, Sanjeev Singh, “Single Current Sensor PMBLDC Motor Drive with PowerQuality Controller for Variable Speed Variable Torque Applications” The 5th International Conference on Electrical Engineering and Informatics 2015 August 10-11, 2015, Bali, Indonesia. [12] C. Kowsalya, A. Nathiya, S. Shalini & S. Sheela, “Power Factor Correction in BLDC Motor based on Cuk ConverterusingSPWMTechnique”International Journal of Current Research and Modern Education (IJCRME) ISSN (Online): 2455 – 5428 & Impact Factor: 3.165 Special Issue, NCFTCCPS – 2016. [13] Amruta Shivaji Anuse, "Power factor correction based
  • 7. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 442 BLDC motor drive” International Journal of Multidisciplinary Research and Development Online ISSN: 2349-4182, Print ISSN: 2349-5979,ImpactFactor: RJIF 5.72 www.allsubjectjournal.com Volume4;Issue7; July 2017; Page No. 305-307. [14] Chandru K, Mariaraja P, Kuppuswamy A, “Power Factor Correction in Zeta Converter FedPMBLDCMDriveforan Air Conditioner” The International Journal Of Engineering And Science (IJES) Volume 3 Issue 2 Pages 40-45 2014 ISSN: 2319 – 1813 ISSN: 2319 – 1805. [15] Balahemalatha.R ,Sarmila Har Beagam. K ,Srinivas.K. N “A Permanent Magnet BLDC Motor Drive Based Voltage Control Power Factor Correction SEPIC Converter” International Journal of Scientific & Engineering Research, Volume 5, Issue 4, April- 2014 16 ISSN 2229- 5518. [16] Y.Sree Harsha , R. Hariharan “Improving Power Factor Using Landsman Converter in PMBLDC Motor” International Journal of Pure and Applied Mathematics Volume 119 No. 17 2018, 3261-3267.