This document outlines the experiments for a B.E Electrical and Electronics Engineering power electronics and drives laboratory practical exam. It lists 25 possible experiments students can choose from, related to topics like generating gate pulses, characteristics of controlled semiconductor devices, inverters, converters, and motor drives. The exam will be 3 hours and students must answer one question. Their work will be evaluated on various parameters like aim/procedure, tabulation/circuit drawing, calculations and results, and a viva voce, worth a total of 100 marks.

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SRM VALLIAMMAI ENGINEERING COLLEGE
(An Autonomous Institution)
SRM Nagar, Kattankulathur – 603203
B.E / B.Tech. PRACTICAL END SEMESTER EXAMINATIONS, APRIL / MAY 2020
Regulations-2017
Sixth Semester
B.E Electrical and Electronics Engineering
EE8661-POWER ELECTRONICS AND DRIVES LABORATORY
SET 1
Time: 3 Hours Answer any one Question Maximum Marks:100
Aim/Principle/Apparatus
required/Procedure
Tabulation/Circuit/
Program/Drawing
Calculation
& Results
Viva-Voce Record Total
30 30 20 10 10 100
Q.No.
1. Conduct a suitable experiment to generate a gate pulse using R, RC and UJT.
2. Conduct a suitable experiment for a uni-directional current controlled device and draw the
turn-on and steady state characteristics.
3. Conduct a suitable experiment for a bi-directional current controlled device and draw the
steady state characteristics.
4. Conduct a suitable experiment for a uni-directional voltage controlled device and draw the
turn-on and steady state characteristics.
5. Conduct a suitable experiment to show the advantages of both BJT and MOSFET of a
device and draw the steady state characteristics.
6. Conduct a suitable experiment to prove that the o/p DC voltage is greater than i/p DC
voltage of a device.
7. Conduct a suitable experiment to prove that the o/p DC voltage is lesser than i/p DC
voltage of a device.
8. Conduct a suitable experiment for a single phase PWM inverter.
9. Conduct a suitable experiment for a three phase PWM inverter.
10. Conduct a suitable experiment for a two pulse converter using 2 SCR’S and 2 Diodes.
11. Conduct a suitable experiment for a two pulse converter using 4 SCR’S.
12. Obtain the output voltage waveform of a single phase converter which has four controllable
devices. Take α =300
for R load, α = 600
for R Load.
13. Obtain the output voltage waveform of a single phase converter which has two controllable
devices. Take α = 650
for R Load, α =900
for R load.
14. Obtain the V-I static characteristics of a three junction, four layer and unidirectional current
controlled device.

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15. Obtain the V-I static characteristics of a three terminal bidirectional current controlled device.
16. Obtain the transfer and output characteristics of a unipolar voltage controlled device.
17. Draw the output waveforms of a buck- boost converter by conducting suitable experiment.
18. Conduct a suitable experiment for an Ac Voltage controller.
19. Conduct a suitable experiment for a Switched mode power converter.
20. Simulate and obtain the output waveform for a 1Φsemiconverter & 3Φsemiconverter model.
21. Simulate and obtain the output waveform for a 1Φfullconverter & 3Φfullconverter model.
22. Simulate and obtain the output waveform for a dc-dc converters & ac voltage controller model.
23. Obtain the V-I static characteristics of a Gate Turn-off thyristor device.
24. Obtain the V-I static characteristics of an Integrated Gate-Commutated Thyristor (IGCT)
device.
25. Conduct a suitable experiment for a PMBLDC motor.
INTERNAL EXAMINER EXTERNAL EXAMINER