From its characteristics as well as the structural, pneumatic systematic, relay control systematic and PLC control system of every unit, have made detailed analysis.

从各个单元的结构、气动系统、继电器控制系统和PLC控制系统以及其特点作了详细的分析。

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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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In typical R-L-C resonance circuit, the 555-time-circuit and mercury relay are used as control unit. A damped sinusoid source is designed. It has been proved that the source satisfies our request.

在典型的R L C振荡放电电路中，引入5 5 5时基电路和水银继电器作为控制电路，设计了阻尼正弦瞬变信号发生器。

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