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Question 1: A v/f method control method utilised for operation of three phase induction motor Gate pulses are generated as below SPWM desired output frequency is generated from speed reference given in the question A function block is used to create modulation wave and modulation index is base on given speed and…
Sunil Kavala
updated on 01 Apr 2023
Question 1:
A v/f method control method utilised for operation of three phase induction motor
Gate pulses are generated as below SPWM
desired output frequency is generated from speed reference given in the question
A function block is used to create modulation wave and modulation index is base on given speed and back emf relation
these gate signals are fed to 2 level inverter.
motor preset model 5 is selected
desired out results are obtained and same can be observed in scope.
RPM =1000 as desired
stator current
output torque= almost 20nm as desired
Question 2
IM transfer function
Question 3
for this vector control an existing example model is used and modified as per our requirements
dc voltage and motor parameters are adjusted ed as given question.
initialiation parameters and motor data are also modified
simulation is run with averaged model and results are checked
Models attached
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