英语翻译国内大型热力设备的自动控制系统已逐步采用分散控制系统,这使先进的控制策略可较方便地得到应用.但目前大型热力设备的

Domestic large thermal equipment automatic control system has been gradually adopted distributed control system, the advanced control strategies can be more easily applied。But almost all the large-scale automatic control of heating equipment using the classic PID control system, is difficult to achieve good control quality。As many key control system of large power plants, mostly failed to obtain the ideal control quality, seriously affected the safety and economic operation of the unit。Fuzzy system is a kind of strongly nonlinear system can correctly reflect the objective world。Mother tube pressure in this kind of controller fuzzy state variable control system not only can effectively overcome the mother tube boiler pressure of big inertia, big lag characteristics, quickly remove all kinds of spontaneous disturbance, and can effectively restrain when turbine of the opening of the tone changes caused by the mother tube steam pressure change, to ensure that the mother tube safe and economic operation of the unit。Therefore, this method is a good way to solve the nonlinear thermal system of power plant thermal process control of the global optimization problem, the class of nonlinear control system has excellent overall control performance。