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首页> 外文期刊>International journal of intelligent engineering informatics >An interval type-2 fuzzy logic PSS with the optimal H∞ tracking control for multi-machine power system
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An interval type-2 fuzzy logic PSS with the optimal H∞ tracking control for multi-machine power system

机译：具有最优H∞跟踪控制的多机电力系统区间2型模糊逻辑PSS

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In this paper, the interval type-2 fuzzy logic controller (IT2FLC) as a power system stabiliser (PSS) combined with the optimal H∞ tracking control is proposed in this study. The multi-machine power system is considered for evaluation and implementation of the robust proposed controllers. The type-2 fuzzy logic based on interval value sets is capable for modelling the uncertainty and imprecision and to overcome the drawbacks of the conventional PSS. The input signals to the IT2FLC are considered as speed deviation and acceleration. The optimal H∞ tracking control guarantees the convergence of the errors to the neighbourhood of zero. The objective of the proposed method is to enhance the stability and the dynamic response of the multi-machine power system in different operating conditions. The performance with (IT2FL-PSS and H∞) is compared to the performance of the power system with (IT1FL-PSS and H∞) and with conventional PSS. In order to test the effectiveness of the proposed method, the simulation results show the damping of the oscillations of the angle and angular speed with reduced overshoots and quick settling time.
机译：本文提出了结合电力系统稳定器（PSS）的区间2型模糊逻辑控制器（IT2FLC）与最优H∞跟踪控制相结合的方法。考虑使用多机电源系统来评估和实施鲁棒的控制器。基于间隔值集的2型模糊逻辑能够对不确定性和不精确性进行建模，并克服常规PSS的缺点。 IT2FLC的输入信号被视为速度偏差和加速度。最佳的H∞跟踪控制可确保误差收敛到零附近。所提出的方法的目的是增强在不同运行条件下多机动力系统的稳定性和动态响应。将（IT2FL-PSS和H∞）的性能与电源系统（IT1FL-PSS和H∞）和常规PSS的性能进行比较。为了测试所提方法的有效性，仿真结果显示了角度和角速度振荡的阻尼，并减少了过冲和快速建立时间。

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