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电站是一个难以建立完整准确的数学模型的复杂系统 ,基于模型的常规控制方法难于解决电站控制中的各种问题 ,因此在电站控制中引进了模糊控制方法。模糊控制是一种不依赖于系统模型的控制理论。论文以 GE公司MS90 0 1E燃气轮机为原型 ,在人工控制经验的基础上 ,设计了一种模糊控制器 ,并在 Matlab/ Sim ulink环境下对此模糊控制器进行建模仿真。比较分析了模糊控制及常规控制下燃机的二次调频及甩负荷过程模拟的模拟曲线。模拟结果表明该文设计的模糊控制系统与常规控制系统相比 ,具有动态响应快 ,超调量小等优点
The power plant is a complex system which is difficult to establish a complete and accurate mathematical model. The conventional control method based on the model is difficult to solve various problems in power plant control. Therefore, the fuzzy control method is introduced into the plant control. Fuzzy control is a kind of control theory that does not depend on the system model. Based on GE’s MS90 0 1E gas turbine prototype, this paper designs a fuzzy controller based on the experience of manual control, and simulates the fuzzy controller in Matlab / Sim ulink environment. The simulated curves of the secondary frequency modulation and load shedding process of the gas turbine under the fuzzy control and the conventional control are comparatively analyzed. The simulation results show that compared with the conventional control system, the fuzzy control system designed in this paper has the advantages of fast dynamic response and small overshoot