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本文介绍了由通用逆变器、异步电动机、测速发电机和模拟控制器所组成的变频闭环调速系统,详细论述了P—I调节器、I—P调节器和转差频率调节器的设计方法。实验结果表明,用标量控制所获得的性能指标,以I—P控制较好,转差频率控制最好。
This paper introduces a variable frequency closed-loop speed control system composed of universal inverter, induction motor, tachogenerator and analog controller. The design of P-I regulator, I-P regulator and slip frequency regulator method. The experimental results show that the performance index obtained by scalar control, I-P control is better, slip frequency control is best.