本丈对转差频率控制的变频调速系统进行讨论，分析这种控制方式所存在的不足；
This paper discusses the slip frequency control of variable frequency regulating speed system, and analyses the shortage of this control way.
在几种常见的电机控制方式中，最终选定了转差频率控制方式的变频调速技术。
Slip frequency as a technique of frequency conversion is finally adopted among several control methods of motor.
压缩机控制系统采用变频控制，其频率给定值由非线性环节来决定。
The control system of the compressor adopts frequency conversion to control, its frequency setting value is decided by the non-linear link.
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