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300MW circulating fluidized bed steam pressure fluctuation analysis andsolutions

Li Long-tian  
Coordination control strategies optimization of 300MW CFB power units were introduced,The application of AGC function are often failed because of high main steam pressure and big deviation.This can not meet the requirement for AGC control strategies.Make an analysis of the exited problem in the operation,by using fuzzy feedforward controller and self-adaptive PID gain coordination controller in boiler main control,modify the function parameter "pressure pull back" of Turbine Master and add corrective loop of coal quantity of heat,this load control index of power units can meet the AGC function requirement from CSPG(China Southern PowerGrid).
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