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1·Asynchronous machine is a nonlinear, multivariable and coupled system.

异步电机是一个非线性、多变量、强耦合系统。

2·The study of saving energy in asynchronous machine is very important to economy and society.

因此，对异步电动机节能装置的研究有着重大的经济效益和社会效益。

3·In asynchronous machine there exist main kinds of flux linkage, that is: rotor flux-linkage, air-gap flux-linkage and stator flux-linkage.

异步电动机内部存在三种磁链，即转子磁链、气隙磁链和定子磁链。

4·According to the power flow and calculation method of the asynchronous machine, a motor torque measuring equipment based on DSP is introduced.

根据异步电机的功率流程和计算方法，介绍了一种基于DSP微处理器的电机转矩测量仪。

5·A scheme of direct torque-control system of asynchronous machine with a simple Resonance Pole Zero Voltage Transfer (RPZVT) inverter is proposed.

提出一种采用控制简单的谐振极零电压过渡(RPZVT)软开关逆变器的异步电机直接转矩控制新方案。

6·The energy optimization control of asynchronous machine often uses the permanent slip frequency control according to the electrical machinery static model.

感应电机能量优化控制常根据电机静态模型采用恒转差频率控制。

7·Comparing with frequency converting driving system for asynchronous machine and adjustable speed for DC motor, the driving system has a wide application foreground.

与变频异步电机驱动系统和直流电机调速系统相比，开关磁阻电机驱动系统有着广阔的应用前景。

8·The asynchronous machine is fed by cascaded multilevel inverter, and the inverter switching signals are generated by carrier phaseshifted pulse width modulation method.

采用级联型多电平逆变器给异步电机供电，逆变器的开关信号利用载波移相脉宽调制方法生成。

9·Based on the theory of vector control and automatic control system, the vector control system of current model for doubly-fed asynchronous machine with field-oriented rotor was established.

根据矢量控制理论和自动控制原理，建立了转子磁链定向的双馈异步电动机电流模型矢量控制系统。

10·But asynchronous machine is a multivariate close coupling non - linear time - variable parameter system. And it is difficult to control by rule and line through adding exterior signal directly.

而异步电机是一个多变量、强耦合、非线性的时变参数系统，很难直接通过外加信号准确控制电磁转矩。