基于分离源矩阵变换器的PMSM无源动态演化控制策略OA北大核心CSTPCD

To improve the traditional permanent magnet synchronous motor drive system and its PID control deficiencies,a passive dynamic evolutionary control strategy is proposed for permanent magnet synchronous motor(PMSM)and split source matrix converter(SSMC)applications.To overcome the 0.866 voltage conversion ratio limitation of traditional matrix converter,the structure uses inductors,capacitors and three diodes to replace the DC link components in the two-stage MC to form a split source network,and its operating principle has also been proven.Furthermore,in the tradi-tional vector control,the traditional PID controller is used in the speed outer loop and current inner loop of permanent magnet synchronous motor;however,due to the difficulty in tuning the parameters of PID controllers,the control accura-cy is not high,the overshooting amount is large and the interference resistance is not strong and so on.Consequently,we proposed a control strategy based on the dynamic evolution theory and the passive theory,and designed the split source matrix converter and the interconnection and damping assignment(IDA)based passive controller(PBC)and the dynamic evolution controller(DEC)of the permanent magnet synchronous motor system,which are demonstrated to be stable the-oretically.Simulation results show that the SSMC-PMSM drive system based on this control strategy can ensure the permanent magnet synchronous motor to run in a stable manner at its rated speed,and has strong robustness and dynamic response with improved anti-interference capability.