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发明公开
CN104252168A 火力发电厂智能控制系统及在该系统中实施的方法 有权

火力发电厂智能控制系统及在该系统中实施的方法
摘要：
本发明公开一种火力发电厂智能控制系统及在该系统中实施的方法，系统包括锅炉智能控制回路和汽机智能控制回路；锅炉智能限值模块，接收常规锅炉主控指令和锅炉智能控制回路的输出指令，根据常规锅炉主控指令和预设的裕量值确定智能锅炉主控指令的上、下限值，将锅炉智能控制回路的输出指令与上限值和下限值比较，根据比较结果限制智能锅炉主控指令的输出值；汽机智能限值模块，接收常规汽机主控指令和汽机智能控制回路的输出指令，根据常规汽机主控指令和预设的裕量值确定智能汽机主控指令的上、限值，将汽机智能控制回路的输出指令与上限值和下限值进行比较，根据比较结果限制智能汽机主控指令的输出值，实现对智能控制系统输出的精确动态限幅。
摘要（英）：

The invention discloses an intelligent control system of a thermal power plant and a method implemented in the intelligent control system. The system comprises an intelligent boiler control circuit, an intelligent steam turbine control circuit, an intelligent boiler value limiting module and an intelligent steam turbine value limiting module, wherein the intelligent boiler value limiting module is used for receiving a main control command of a conventional boiler and an output command of the intelligent boiler control circuit, determining the upper limit value and the lower limit value of an intelligent boiler main control command according to the main control command of the conventional boiler and the preset margin value, comparing the output command of the intelligent boiler control circuit with the upper limit value and the lower limit value, and limiting the output value of the intelligent boiler main control command according to the comparison result; the intelligent steam turbine value limiting module is used for receiving a main control command of a conventional steam turbine and an output command of the intelligent steam turbine control circuit, determining the upper limit value and the lower limit value of an intelligent steam turbine main control command according to the main control command of the conventional steam turbine and the preset margin value, comparing the output command of the intelligent steam turbine control circuit with the upper limit value and the lower limit value, and limiting the output value of the intelligent steam turbine main control command according to the comparison result; therefore, the precise dynamic amplitude limiting for the output of the intelligent control system can be realized.

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