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Type-2 fuzzy based adaptive synergetic power system control

机译：基于2型模糊的自适应协同电力系统控制

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This paper introduces a new type-2 fuzzy based adaptive synergetic power system stabilizer used in damping power flow limiting oscillations that often occur following disturbances in power systems. Small magnitude and low frequency oscillations, linked to the electromechanical modes in power systems, often persist for long periods of time leading in some cases to loss of synchronism and eventually to blackouts. These oscillations may occur locally or between different areas of a power system. Among many robust control techniques to assure service continuity sliding mode has been proposed despite its inherent chattering drawback. This paper present a novel power system stabilizer based on synergetic control which possesses the same strong robustness and invariance to external disturbances as sliding mode but without its negative chattering. Type-1 fuzzy systems have also been heavily relied on to describe unknown system model but they lack fuzziness in dealing with uncertainties. Better suited to deal with uncertainties type-2 fuzzy systems are used in this paper in approximating the unknown power system nonlinear dynamics while stability is insured through Lyapunov synthesis. Severe operating conditions are used in a simulation study to test the validity and effectiveness of the proposed method. Results indicate good performance and satisfactory transient dynamic behaviour. A multi-machine power system is used to demonstrate the performance of the proposed controller and to show its superiority over other conventional stabilizers used in the literature.
机译：本文介绍了一种新型的基于2型模糊的自适应协同电力系统稳定器，该稳定器用于衰减电力潮流限制振荡，该振荡通常在电力系统扰动之后发生。与电力系统中的机电模式相关的小幅度和低频振荡通常会持续很长时间，在某些情况下会导致失去同步性并最终导致停电。这些振荡可能会在本地发生，也可能在电力系统的不同区域之间发生。尽管存在固有的抖动缺陷，但在许多种确保服务连续性滑模的鲁棒控制技术中，已经提出了这种技术。本文提出了一种基于协同控制的新型电力系统稳定器，该稳定器具有与滑模相同的强大鲁棒性和对外部干扰的不变性，但没有负面的颤动。类型1模糊系统也被大量用来描述未知的系统模型，但是它们在处理不确定性时缺乏模糊性。本文采用更适合处理不确定性的2型模糊系统来近似未知电力系统的非线性动力学，同时通过Lyapunov综合确保稳定性。在模拟研究中使用了严格的操作条件，以测试所提出方法的有效性和有效性。结果表明良好的性能和令人满意的瞬态动态行为。多机动力系统用于演示所提出的控制器的性能，并显示其优于文献中使用的其他常规稳定器的优势。

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