Abstract:

The effects of over voltage, over current and surage impacts on the dynamic performance of induction machine were studied.The performance indexrepresentingthyristor’s power loss was established by means of state space modeling tool.Taking advantage of impacts’restriction conditions,the idea that obtaining optimal parameter configuration sthrough optimizing performance indexinsteady state was proposed.The simulation curves and actual wave forms show that this method significantly restrain simpacts and reduces power loss.

Key words: induction machines, thyristor;snubber circuit, steady state optimization