本文主要阐述一种不用系统模型的模糊变结构控制器对直流蒸汽发生器压力进行控制的设计方法。

So the control system can be made more ideal. The paper describes the design method of sliding mode fuzzy controller without its system model for the once-through stream generator.

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提高进口烟气温度、降低蒸汽压力或减小节点温差，均可显著降低设计出口烟气温度，从而增大蒸发量，提高热效率；

Higher gas inlet temperature, lower steam pressure or pinch point temperature difference lead to lower exhaust gas temperature, larger evaporation and higher efficiency;

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提高进口烟气温度、降低蒸汽压力或减小节点温差，均可显著降低设计出口烟气温度，从而增大蒸发量，提高热效率；

Higher gas inlet temperature, lower steam pressure or pinch point temperature difference lead to lower exhaust gas temperature, larger evaporation and higher efficiency;

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