The three-phase PWM voltage source rectifier presented in this paper owns such features as constant output voltage, running under unit power factor and feedback of the power into the power networks.

三相电压型PWM整流器具有输出电压恒定、能实现单位功率因数运行的特点，甚至可以实现电能回馈电网。

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The intelligent control system consists of reference governor, neuro-fuzzy feedforward controllers, fuzzy feedback controllers and fossil-fuel power unit (FFPU).

该系统包括设定值调节器、神经网络模糊前馈控制器、模糊反馈控制器和单元机组。

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Based on relay feedback self-tuning technology, self-tuning method of multivariable PID controller for coordinate control system of large scaled fossil-fired power unit is stated.

基于继电反馈自整定技术，提出了燃煤大型火电机组协调控制系统多变量pid控制器的自整定方法。

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