Research on a Combined Controller of Solar Array Drive Assembly
A controller for the direct-drive permanent magnet synchronous motor(PMSM)of the solar array drive assembly(SADA)is designed,and a field-oriented control model is proposed based on the characteristics of the PMSM.In order to solve the problem of overshoot and poor robustness that the speed-loop proportional-integral-derivative(PID)controller of the field-oriented control system under low or even zero speed operating conditions has,a double-fuzzy proportional-integral(PI)controller based on the speed-loop is designed.In order to solve the problem of complicated parameter adjustment for the traditional current-loop PI controller in the field-oriented control system,a deadbeat predictive current controller based on the current-loop is designed.The test results show that,compared with the design of traditional speed-loop and current-loop dual PI controllers,the new combined controller has better stability and anti-interference characteristics.
permanent magnet synchronous motor(PMSM)field-oriented control modeldouble-fuzzy PI controldeadbeat predictive current controlcombined controller
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维普
