Research on Voltage Decoupling Control of Vector Control for Permanent Magnet Synchronous Motor

The method id=0 is one of vector control′s methods of PMSM.The method makes current decouple in a static state,but dynamic coupling between d-q current still exist,which causes d-q current effect on each other in dynamic process and also causes a bad dynamic performance of PMSM.The problem of dynamic coupling has particularly outstanding when PMSM highly accelerates/decelerates.Three voltage decoupling methods was summarized which based on vector control,by means of theoretical analysis and simulation studying,contrasts the performance of different voltage decoupling methods,in the end,simulation results confirm the theoretical analysis.