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首页> 外文会议>2016 International Conference on Electrical Power and Energy Systems >Implementation of hybrid fuzzy sliding mode controller for power system stability
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Implementation of hybrid fuzzy sliding mode controller for power system stability

机译：电力系统稳定性的混合模糊滑模控制器的实现

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This paper proposes the improvement in the operation of power system stabilizer (PSS) using a combination of sliding mode control(SMC) and fuzzy logic. The objective is to enhance the small signal stability of the power system by effectively damping the low frequency oscillations and thereby increase the power transfer capability. The conventional PSS results in the poor performance at different operating points and uncertainties. Using sliding mode control a robust controller is designed to enhance the stability, however, at large disturbance a large switching gain is required which produces chattering problem. Fuzzy logic is employed to compensate for the chattering and overall improve the performance of SMC based PSS. The small signal stability of the system is analyzed by carrying out the simulation using the proposed controller and a comparison is drawn with the Conventional Power System Stabilizer (CPSS) performance. The simulation results show improved performance in terms of reduced overshoot, quick settling time and effective damping of oscillations.
机译：提出了结合滑模控制（SMC）和模糊逻辑的电力系统稳定器（PSS）运行改进方法。目的是通过有效地抑制低频振荡来增强电力系统的小信号稳定性，从而提高电力传输能力。传统的PSS导致在不同的工作点和不确定性下性能较差。使用滑模控制，设计了鲁棒的控制器来增强稳定性，但是，在较大的干扰下，需要较大的开关增益，这会产生抖动问题。模糊逻辑用于补偿抖动，并总体上改善基于SMC的PSS的性能。通过使用建议的控制器进行仿真来分析系统的小信号稳定性，并与常规电源系统稳定器（CPSS）性能进行比较。仿真结果表明，在减少过冲，快速建立时间和有效抑制振荡方面，性能得到了改善。

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