Permanent magnet synchronous motor control method

The invention discloses a permanent magnet synchronous motor control method, which is characterized in that variable speed and variable exponential terms are added on the basis of a conventional power reaching rate to form an adaptive reaching law so as to enable the reaching speed to be associated with the system state change, so that on the one hand, the system response speed and the reaching speed are effectively increased, and on the other hand, buffeting of the system is reduced. Compared with conventional reaching law sliding mode control, the method has better dynamic performance and higher robustness. Meanwhile, the invention provides a multi-objective parameter optimization method based on an intelligent algorithm for the designed controller, the three objectives of rotating speed rise time, overshoot and steady-state error are comprehensively considered, the parameters related to the controller are optimized by adopting the intelligent algorithm, a reference is provided for setting of the parameters