【摘 要】
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Aiming at the problems of slow dynamic response and weak robustness of integer-order proportional integral (PI) con-troller in double closed loop vector control system of permanent magnet synchronous motor (PMSM),a method of combining dragonfly algorithm
【机 构】
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School of Electronic and Electrical Engineering,Shanghai University of Engineering Science,Shanghai
论文部分内容阅读
Aiming at the problems of slow dynamic response and weak robustness of integer-order proportional integral (PI) con-troller in double closed loop vector control system of permanent magnet synchronous motor (PMSM),a method of combining dragonfly algorithm with fractional order PI control is proposed for off-line parameter tuning for the outer loop of speed of the system.The parameter to be optimized is used as the spatial posi-tion of the optimal individual searching for food sources in the search space,and the error performance index integrated time and absolute error (ITAE) is used as its target fitness function.The motor speed regulation performances of traditional engineering experience setting integer order PI,particle swarm optimization algorithm tuning fractional order PI and dragonfly algorithm tun-ing fractional order PI are compared,respectively.Results show that the fractional order PI controller optimized by dragonfly algo-rithm can improve the dynamic response performance of the sys-tem,reduce overshoot and enhance robustness,which proves the feasibility and superiority of the optimization strategy.
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