摘要：在交流伺服调速系统中，控制系统的超调量与调节快速性是一对相互制约的性能指标。针对这对指标，本文提出了一种新型的变结构控制器，对广泛使用的PI控制器结构进行了改动，引入了一个可以调节的零点，使控制器可以在超调量与调节快速性之间做出平衡，在保证系统调节快速的同时将超调量控制在理想的范围之内，并通过仿真研究验证了此控制器的有效性。
关键词：永磁同步电机; 超调量;调节快速性;PDFF控制
Abstract: In AC servo system, the overshoot of response and the rapidity of regulating process are interrelated and interact on each other. To solve this problem, this article proposed a new type of controller, this controller was improved from PI controller which brought in an alterable zero point, and it could adjust two above performance indexes. This controller provided a rapidity regulating process and limited the overshoot in a range which planned. At last, simulation results proved the effectiveness of this controller.

Key words: PMSM; overshoot; rapidity of regulating process; PDFF coutrol