关键词: 主汽温, 模糊控制, 优选法, 偏差积分

Abstract: Considering the long-time lag,big inertia and nonlinearity characteristic of main steam temperature system in fossil-fired power plant,this paper provides a new strategy of fuzzy control through improving the analytic type control rules provided by Shengzhao-Long,using optimization method to optimize parameter.Then it can overcome the limits of the operators and experts experiences.At the same time,it introduces the error integrator to avoid static errors,which exists in the traditional fuzzy control.According to the simulation results,this method is with quick optimization speed,small computation and strong robustness and self-adaptability.So it can enormously enhance the control objects of main steam temperature in power plant.

Key words: main steam temperature, fuzzy control, optimization method, error integrator