This document summarizes an undergraduate final year project presentation on induction motor drives for an electric car. A team of four electrical engineering students from the University of Engineering and Technology Lahore presented their work. They proposed designing a PWM inverter using IGBTs to power a three-phase induction motor for an electric car and implementing semi-autonomous control via Bluetooth. The team conducted simulations of various PWM techniques in MATLAB and designed inverter components. Their future work involves building a prototype and implementing mobile control of the car's motion and direction.

2. Department of Electrical Engineering,
University of Engineering and Technology, Lahore
Induction Motor Drives Of An
Electric Car
Group No: 2014-FYP-30
Project Advisor: Dr. Tahir Izhar
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

3. Team Introduction
Shazmina Fatimah (Team Leader)
2014-EE-012
Specialization: Power
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018
Zermina Fatimah
2014-EE-025
Specialization: Power
Adnan Ahmad
2014-EE-041
Specialization: Power
Muhammad Arshad
2014-EE-037
Specialization: Power

4. Problem Statement
 Internal combustion engine is costly, less
environmental friendly
 Environment hazards
 Drive and control mechanism of motor
 Saturation of core
 Navigation control is complex
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

5. Proposed Solution
 Electrification of Car
 To design an inverter using IGBT to fed a three phase
output to induction motor.
 To make cost effective VFD using PWM based inverter.
 Semi autonomous control of car using Bluetooth
module.
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

6. Block Diagram
HC-05
• Bluetooth
module
STM32f407VG • Microcontroller
3-phase
Inverter
• Converts dc to ac and used
for drive control
3-phase IM
in Car

7. Flow Diagram
STM32F407VG
Microcontroller
Three phase
inverter
Three phase
induction motors
in Electric car
Proximity
Sensors
RPM
counter
Ref speed
Bluetooth
module
HC-05
Adder
Error feedback
Gate pulses DC/ACData Transmit
Actual Speed

8. Applications
 AC drives are used in automobile industry
 25% of electrical energy is consumed by motors for
which VF drive are more efficient
 Used in textile industries
 VFD are of great industrial importance , used for ac-ac
as well as dc-ac conversion.
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

9. Applications
 VFD has reduced size because of small semiconductor
devices
 Cost is optimized
 Responsible for improvement in quality and yield of
steel products.
 Used in steel industries
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

10. Audience
 Automobile industry
 Textile industry
 Steel industry
 Because of IGBT , it can target power distribution
companies
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

11. What we have done so far?:
Simulations of different PWM techniques on MATLAB
 180 Degree conduction
 Schematic Diagram
 Gate Pulses
 Line-Line voltage
Undergraduate Final Year Project Presentation
Dated: 2nd October, 2016

12. What we have done so far?:
Simulations of different PWM techniques on MATLAB
 120 Degree Conduction
 Gate Pulses
 Line-Line voltage
 Phase Voltages
Undergraduate Final Year Project Presentation
Dated: 2nd October, 2016

13. What we have done so far?:
Simulations of different PWM techniques on MATLAB
 Sine pwm
 Schematic Diagram
 Gate Pulses
 Phase voltage
 Line-Line Voltages

14. What we have done so far?:
Design of three phase inverter
b
Voltage
Regulator
Circuit Gate driver
IC Exb841 Snubber
Circuit IGBT
Module
INVERTER COMPONENTS
Stm32f407VG
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

15. What we have done so far?:
Induction Motor Drives
 Speed is controlled by minimizing the error
 Duty cycle is varied in order to change voltage
 By changing duty cycle Speed is changed accordingly
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

16. What we have done so far?:
 Navigation control of car
 By pressing the left button, direction of motor will be in left
direction
 Direction of motor will be in right by pressing right button
 Installment of Induction motor in car
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

17. Hardware Developed
 Inverter Design
 Shaft of three phase induction motor for car
 Interfacing of Bluetooth module
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

18. Future Deliverables
 Designed pwm inverter
 Motion and direction is controlled through mobile
application.
 Error is minimized on software level
 Requires testing on motors.
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018

19. Cost Analysis
Undergraduate Final Year Project Presentation
Dated: April 5th,2018
Component Quantity Cost per
component
Total Cost
IGBT Module 3 1500 4.5k
Exb841 6 650 ~4k
Induction
Motors
1 1700 1.7k
Heat Sinks 2 350 700
Others 3k-4k
Total ~14k

20. Gantt Chart
.
Undergraduate Final Year Project Presentation
Dated: April 5th,2018
Nov-16
Mar-17
Jun-17
Sep-17
Dec-17
Apr-18
Jul-18
Oct-18
Software
Simulations
Inverter
Design
VFD Navigation
Control
Start date Sep-17 17-Oct 18-Jan 18-Mar
End Date 18-Oct 18-Jan 18-Apr 18-Apr
Sep-17
17-Oct
18-Jan
18-Mar
18-Oct
18-Jan
18-Apr 18-Apr
ELApsed Time Since Start Of Project
Start date End Date

21. References
[1] Muhammad H. Rashid, “ Power Electronics Circuit,
Devices and Applications”, 3rd ed., Pearson,2009, pp. 237-
251.
[2] Muhammad H. Rashid, “ Power Electronics Circuit,
Devices and Applications”, 3rd ed., Pearson,2009, pp. 713-
721.
Undergraduate Final Year Project Presentation
Dated: April 5th,2018

22. Undergraduate Final Year Project Presentation
Dated: April 5th,2018.

23. ANY QUESTIONS??
Undergraduate Final Year Project Presentation
Dated: April 5th, 2018