Regenerative braking is a special process used in electric cars to obtain energy from the movement of the motor

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ELECTRICAL ENGINEERING
(POWER)
PROJECT NAME: REGENRATIVE BRAKING
INTERNAL SUPERVISOR: PROF. DR. ABDUL QADIR
GROUP MEMBERS:
MUHAMMAD JIBRAN KHURSHEED
ANAS HUSSAIN HAMEEDI
ZUNAIRA ABDUL QADIR
contact: 03162694998

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MOTIVATION/BACKGROUND:
• Regenerative braking deals with the energy problem
occurred in the motors of automobiles. As brakes are
applied to stop the motor some energy is released as
dissipated energy.
• To overcome this issue regenerative braking was
introduced.
• It is based on the mechanism which stores the
dissipated energy then boosts for utilization purpose.

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INTRODUCTION/ABSTRACT/OVERVIEW:
• Presently what the world needs is a method or a technology that saves
energy from getting wasted..
• When driving any motor, a great amount of kinetic energy is wasted
when conventional brakes are applied.
• The main aim of this work was to develop a product that stores the
energy which is normally lost during braking, and reuses it.
• The use of regenerative braking system in motors provides us the
means to balance the kinetic energy of the machine to some extent
which is lost during the process of braking.

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DESCRIPTION/METHODOLOGY:
• The power supply is made to convert alternating current
(AC) into direct current (DC).
• Manual boost regulator is made for testing purpose.
• Arduino programming for boost regulation.
• Then load is connected in the end.

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BLOCK DIAGRAM and FLOW DIAGRAM:

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SCHEMATIC OF POWER SUPPLY ON
PROTEUS:

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SCHEMATIC OF BOOST REGULATOR:

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PMDC Motor Testing (With
flywheel):
•Current taken =2A
•OFF supply running timing=1 min 20 sec.
•OFF supply Voltage & Time observations:
178 V (10 sec)
142 V (20 sec)
110 V (30 sec) , so on…..
0
20
40
60
80
100
120
140
160
180
200
10 20 30 40 50
Voltage
time
OFF Supply Voltage Vs Time
Manual Dc boost
regulator testing:
•Input= 5V
•Output= 15-20V

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COMPONENTS DETAILS:
COMPONENTS DETAILS
DC MOTOR 180V, 5A, 1HP
TRANSFORMER 220/180V , 10A
CAPACITOR 3300UF
BRIDGE RECTIFIER 26A, 1000V
RESISTOR 1K, 2K,0.5K
POTENTIOMETER 1K
WIRE FOR INDUCTOR 25 SWG, 50+TURNS
FLY WHEEL-1 4KG, 7inch dia
FLY WHEEL-2 9KG, 13inch dia

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FEATURES:
• The electrical energy we are getting has low DC voltages
which are stepup by using booster and then feed into the
batteries.
• Motor starts to act as generator.
• Makes system more efficient.

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APPLICATIONS:
• For recovering the kinetic energy of motor .
• Extends driving range.
• Increase the reliability of system.
FUTURE WORK:
• Arduino programming for boost regulation.
• Boost regulator circuit design.
• Adding tachometer to the system.
• Report writing

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TIMEFRAME/ PROGRESS CHART:
FIRST
MILESTONE
30% WORK
SECOND
MILESTONE
40% WORK
THIRD
MILESTONE
30% WORK
Literature Review Arduino Coding Adding Tachometer
Selection and
Purchasing of
components
Designing of boost
circuit
Utilization Process
Making Of DC
Power
Supply+Manual
boost Regulator
Report Writing
Flywheel
Testing

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TENTATIVE OUTPUT:
• Increase of overall efficiency of system.
• It stores the dissipated energy.
• It prolongs the charge of battery.

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