An uninterruptible power supply project was developed to provide emergency power to small scale industries when main power fails. The system uses an AC to DC converter to charge a DC power bank, which then uses a DC to AC converter powered by a CD4047B multivibrator to convert the power back to AC and feed it to loads like a universal motor. The project aims to provide near-instantaneous backup power for small industries experiencing mains power interruptions.
Apollo Solar attended the AEE Solar Show and trained several installers on the Apollo equipment. The following slides show how Apollo products help solar installers how todesign and install systems more efficiently with the Apollo line.
Occasionally we need dc power source which is adjustable along with protections. This slide will help you to create a circuit that can adjust the dc voltage and apply thereby.
Apollo Solar attended the AEE Solar Show and trained several installers on the Apollo equipment. The following slides show how Apollo products help solar installers how todesign and install systems more efficiently with the Apollo line.
Occasionally we need dc power source which is adjustable along with protections. This slide will help you to create a circuit that can adjust the dc voltage and apply thereby.
Project: DC Power Supply(PCB)
Group Members:
Haris Abbas Qureshi 171000
M Zubair Khan 170907
M Ammar Aslam 170928
Department of Electrical and Computer Engineering . Air University,Islamabad
The following presentation is a part of the level 5 module -- Electronic Engineering. This resources is a part of the 2009/2010 Engineering (foundation degree, BEng and HN) courses from University of Wales Newport (course codes H101, H691, H620, HH37 and 001H). This resource is a part of the core modules for the full time 1st year undergraduate programme.
The BEng & Foundation Degrees and HNC/D in Engineering are designed to meet the needs of employers by placing the emphasis on the theoretical, practical and vocational aspects of engineering within the workplace and beyond. Engineering is becoming more high profile, and therefore more in demand as a skill set, in today’s high-tech world. This course has been designed to provide you with knowledge, skills and practical experience encountered in everyday engineering environments.
A simple, economic, pure sine wave dc/ac inverter applicable up to 500VA output power.
Easily repairable.
Designed by Subarna Giri (electrical systems control technologist)
Be free from IC-type model
Be eco-friendly
Goals of a well designed inverter,Application,Types of power conveter,Introduction to inverters,Properties of an ideal inverter, Block diagram of an inverter ,Pulse Width Modulation,Inverter operation
If you are looking for exporters and suppliers of dc Regulated Power Supply. Visit here to know more information about Dc Regulated Power Supply manufacturers and suppliers offering sell trade lead and sell offers.
This is our 3rd semester project of electronics-1 which is a mobile battery charger with night switch as load circuit, it will work as a ups the night switch works on input 220 volt supply and when we cut off the supply it continues it working on battery power and vice virsa.
A solar inverter, or PV inverter, converts the direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-line electrical network.
Project: DC Power Supply(PCB)
Group Members:
Haris Abbas Qureshi 171000
M Zubair Khan 170907
M Ammar Aslam 170928
Department of Electrical and Computer Engineering . Air University,Islamabad
The following presentation is a part of the level 5 module -- Electronic Engineering. This resources is a part of the 2009/2010 Engineering (foundation degree, BEng and HN) courses from University of Wales Newport (course codes H101, H691, H620, HH37 and 001H). This resource is a part of the core modules for the full time 1st year undergraduate programme.
The BEng & Foundation Degrees and HNC/D in Engineering are designed to meet the needs of employers by placing the emphasis on the theoretical, practical and vocational aspects of engineering within the workplace and beyond. Engineering is becoming more high profile, and therefore more in demand as a skill set, in today’s high-tech world. This course has been designed to provide you with knowledge, skills and practical experience encountered in everyday engineering environments.
A simple, economic, pure sine wave dc/ac inverter applicable up to 500VA output power.
Easily repairable.
Designed by Subarna Giri (electrical systems control technologist)
Be free from IC-type model
Be eco-friendly
Goals of a well designed inverter,Application,Types of power conveter,Introduction to inverters,Properties of an ideal inverter, Block diagram of an inverter ,Pulse Width Modulation,Inverter operation
If you are looking for exporters and suppliers of dc Regulated Power Supply. Visit here to know more information about Dc Regulated Power Supply manufacturers and suppliers offering sell trade lead and sell offers.
This is our 3rd semester project of electronics-1 which is a mobile battery charger with night switch as load circuit, it will work as a ups the night switch works on input 220 volt supply and when we cut off the supply it continues it working on battery power and vice virsa.
A solar inverter, or PV inverter, converts the direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-line electrical network.
Dual converter is a power electronics control system to get either polarity DC from AC rectification by forward converter and reverse converter . It can run a DC motors in either direction with speed control too.
The characteristics of a single phase induction motor are identical to three phase induction motor except that single phase induction motor has no inherent starting torque and some special arrangement have to be made for making itself starting.
Though single phase induction motor is not self-starting, we are using it because the three phase supply is not present at everywhere.
The voltage variation as well as power control of inductive load is essential in industrial sector.
The load may any motor or any inductive load.
We can use thyristor to this job but it is easier using TRIAC.
SPEED CONTROL OF SEPARATELY EXCITED DC MOTOR USING POWER ELECTRONIC CONVERTER ijiert bestjournal
In a modern technology the use of power electronic devices in the control strategies of
electrical drives is increasing. The speed of a DC motor can be varied by controlling the field
flux, the armature resistance or the terminal voltage applied to the armature circuit. The three
most common speed control methods are field resistance control, armature voltage control,
and armature resistance control. But here a technique of drive has been used for DC motor’s
speed control is chopper and some power electronics devices. It has been shown here the use
of chopper and power electronics devices which paves the way of controlling also torque and
speed characteristics of DC motor. Now the simulation of model is done and analysed in
MATLAB (Simulink) under varying speed and torque condition
SOLID STATE TRANSFORMER - USING FLYBACK CONVERTERAbhin Mohan
FUTURISTIC ELECTRICAL ENGINEERING PROJECT.
A Device that can step up as well as step down coltage and get output as both DC or AC. Total flexibility of Power using DC link by Flyback Coverter.
2. 2
VENTURED BY:-
NAME ROLL NO.
1. ADITYA BISWAS 10601612038
2. SUNNY MAJUMDER 10601612034
3. RAYAN CHATERJEE 10601612025
4. RAKIBUL HAQUE 10601613038
5. WASIM RAJA 10601613037
GUIDED BY:- Mr. SUJOY MUKHERJEE
3. Abstract:
An uninterruptible power supply is an electrical apparatus that provides emergency
power to load when input source, typically the main source power fails. It provides
near-instantaneous protection from input power interruptions by supplying energy
stored in DC power bank. In first step the AC current is converted into DC by AC to
DC converter, then the Power Bank is charged by it. After that the DC current is
converter into AC. Then the AC current is fed to “Small Scale Industry”. In our project
we use Load a Universal Motor ,which is used as a conveying system in small scale
industry and other AC load.
220 Volt
AC
Supply
Single
phase
AC to DC
Converter
DC to AC
Converter
By pass Switch
Small
Scale
Industries
DC
Power
Bank
6. DEMAND IN SMALL
SCALE INDUSTRIES
Electricity is an essential thing in every sector of industry.
The requirement of electricity is different for different
industries.
For small scale industries electricity usage are different and
are as follows:
• Manufacturing Industry: 1. Lightings
2. Run small machinery
3. Run conveyor belts(if it
is there)
• Trading Industry: 1. Lighting and appliances
2. Small tools
3. Devices
• Service Industry: 1. Lightings and appliances
2. Computers, etc
7. WHY UNINTERRUPTED POWER
SUPPLY?
Due to this gap between the supply and
demand, there should be cut in power.
Even during the peak hours (at evening) the
demand is at its peak, so to satisfy the need of
important divisions/city, supply has to cut in
less important areas and villages.
If the electricity board want to supply all the connected loads even in this power
deficit situation. Due to low voltage there will be extra pressure on the
transformers and it may burn. Low voltage also reduces the efficiency of other
electrical equipment and load.
One day when the Peak electricity power shortage will reduce to zero, power
cuts will be vanished from India.
9. COMPONENT USED
1. CD4047B
2. MOSFET(IRFZ44)
3. RESISTANCE(100ohm,120K)
4. CAPACITOR(100micro-farad,103J/400V)
5. ZENER DIODE (5V/1W)
6. DC POWER BANK (12V,7A)
7. DIODE
8. TRANSFORMER(210-230/12-0-12,6A)
9. UNIVERSAL MOTOR (12V)
10. LIGHT
10. AC to DC Converter
Here the Bridge Converter is used to convert DC current into AC . Bridge
Converter is an example of a full wave rectifier that has 4 diodes connected in
two cycles; positive half cycle and the negative half cycle.
Below showing the bridge rectifier.
11. DC Power Bank
• A Power bank(battery) is an electrical device which is a combination of several
electrochemical cells, used to convert stored chemical energy into electrical energy or
vice versa for rechargeable batteries.
• The reliable operation of Uninterrupted Power Supply systems depends on the battery
to a large extent.
• When a battery is connected to the load, energy stored in it gets utilized, this is known
as ‘discharging of battery’.
• The battery can be given energy from an external source to restore its energy again, the
process called ‘charging of the battery’.
• In our project we use 12 volt ,7 amps DC Power Bank.
12. DC to AC Converter
DC to AC converter, so called Inverter, is used in the conversion process. This
conversion is done by Turn-on or Turn- off devices ,like BJT,MOSFETS,IGBT etc. The
method to complete the desired outcome would be to first convert the low voltage DC
power to AC, and then use a transformer to boost the voltage to 230 volts. Here we use
CD4047B , is a asatable multivibrator , due to this operation. The multivibrator provides
a square wave , which is fed to the transformer.
14. MOSFET(IRFZ44)
The MOSFET is a voltage controlled field effect transistor. It has a “Metal Oxide”
Gate electrode which is electrically insulated from the main semiconductor n-
channel or p-channel by a very thin layer of insulating material usually silicon
dioxide.
15. UNIVERSAL MOTOR
The universal motor is so named because it is a type of electric motor that can
operate on both AC and DC power. It is a commutated series-wound motor where
the stator's field coils are connected in series with the rotor windings through
a commutator. It is often referred to as an AC series motor.
Universal motors have high starting torque, can run at high speed, and are
lightweight and compact.
18. APPLICATION
1. DATA CENTRES
2. TELECOMMUNICATION
3. BANKING AND INSURANCE
4. SPECIAL PROJECTS(EVENTS)
5. HEALTH CARE: HOSPITALS AND CLINICS
19. FUTURE ASPECTS
This is a form of green energy which does not harm nature. In this
system we can use non conventional energy sources such as solar
energy, wind energy etc. for charging of battery which represents the
green future.
The advancement of this technology also helps in maintain the power
supply of data centres, banking system more effectively.
20. References
Www. Wikipedia.com
“Five Years Report” of Planning commotion of INDIA
Power Electronics –M.B Singh, K. B Khanchandani
Power Electronics-P.S Bhimra
Electrical Machine-P S Bhimra
Milman’s Intigrated Electronics
Analog Electronics-Milsman.