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首页> 外文期刊>International journal of electrical and power engineering >Fuzzy Logic Based Load Frequency Control of Hydro-Thermal System with Non-Linearities
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Fuzzy Logic Based Load Frequency Control of Hydro-Thermal System with Non-Linearities

机译：基于模糊逻辑的非线性热电系统负荷频率控制

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摘要

This study presents, a solution procedure using Fuzzy Logic Controller (FLC) to load frequency control of an interconnected hydro-thermal system. Thermal system comprises of governor dead band and generation rate constraint non-linearities and boiler dynamics. Hydro area incorporates both non-linearities. For conventional control strategies, proportional-integral controller is used. Integral square error technique is used to find optimum conventional controller gains. This controller does not provide adequate control performance with the consideration of non-linearities and boiler dynamics, when external disturbance occurs. The proposed FLC is used to control the dynamic performance of the two area system. Seven membership function is used to design the proposed controller. Time domain simulation is utilized to study the system performance. One percent step load disturbance is in given either area of the system. Finally, simulation results conclude that the proposed controller has better control performance than conventional PI controller.
机译：本研究提出了一种使用模糊逻辑控制器（FLC）来对互连水热系统的负载频率进行控制的解决方案。热力系统包括调速器死区，发电率约束非线性和锅炉动力学。水电面积兼有两种非线性。对于常规控制策略，使用比例积分控制器。积分平方误差技术用于找到最佳的常规控制器增益。考虑到非线性和锅炉动态特性，当出现外部干扰时，该控制器无法提供足够的控制性能。拟议的FLC用于控制两区域系统的动态性能。七个隶属度函数用于设计所提出的控制器。利用时域仿真来研究系统性能。给定系统的任何区域都将产生百分之一的阶跃负载扰动。最后，仿真结果表明，所提出的控制器具有比常规PI控制器更好的控制性能。

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