DSP Based Real Time Implementation of ac-DC-ac Converter Using SPWM Technique

In most of the drives applications, variable speed concept is achieved by using a back-to-back two level frequency converters. Firstly the open loop system model of ac-dc-ac converter is designed, simulated and realized in SIMULINK. TMS 320F28335 is used for pulse generation by SPWM technique. The problem of controlling the induction motors driven through ac-dc-ac converters is considered. The control objective is restricted to forcing the motor speed to track reference signal and is done with D-Q voltage control technique. The simulation is carried out in MATLAB/SIMULINK and results of both simulation and actual model are compared.

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