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A Distributed Model-Free Controller for Enhancing Power System Transient Frequency Stability

机译:用于提高电力系统暂态频率稳定性的分布式无模型控制器

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摘要

The transient stability control of power systems with growing penetration of renewable energy resources is challenging due to inherent small damping of generators and complicated operating conditions. To address the drawbacks of existing control approaches which need accurate systemwide network parameters, a model-free fuzzy controller is proposed to enhance the transient and frequency stability of power systems. Also, an adaptive parameter estimation scheme is developed to eliminate the fuzzy approximation errors and compensate the external disturbances. The proposed strategy is implemented based on the multiagent framework, which enables the sharing of communication and computation burdens among local controllers for fast and coordinated response. The convergence of the proposed distributed control approach is rigorously proved using the Graph theory and Lyapunov stability theory. Simulation studies validate the effectiveness of the proposed distributed control approach.
机译:由于发电机固有的小阻尼和复杂的运行条件,随着可再生能源资源的不断普及,电力系统的暂态稳定控制具有挑战性。为了解决现有控制方法需要精确的系统范围网络参数的缺点,提出了一种无模型模糊控制器来增强电力系统的暂态和频率稳定性。此外,开发了一种自适应参数估计方案,以消除模糊近似误差并补偿外部干扰。所提出的策略是在多主体框架的基础上实现的,该框架使本地控制器之间可以共享通信和计算负担,从而实现快速而协调的响应。利用图论和李雅普诺夫稳定性理论严格证明了所提出的分布式控制方法的收敛性。仿真研究验证了所提出的分布式控制方法的有效性。

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