A coordinated control approach for FACTS and generator excitation system

2001 IEEE/PES Transmission and Distribution Conference and Exposition. Developing New Perspectives (Cat. No.01CH37294) Pub Date : 2001-10-28 DOI:10.1109/TDC.2001.971233

L. Cong, Y. Wang

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引用次数: 6

Abstract

A robust control approach is proposed in the paper for the coordinated control of geographically distributed FACTS devices and generator excitation systems to improve the dynamic stability of power systems. First, a nonlinear feedback law is found which linearizes the system model. Then, the interaction between FACTS and excitation system is treated as parameter uncertainty and solved by robust control theory. The proposed coordinated controller is designed based on local measurements. An example power system with the installation of TCSC is employed to explore the effectiveness of the proposed approach. The control objective is to achieve both voltage regulation and system stability enhancement. Real-time simulation is carried out by means of RTDS (Real Time Digital Simulator) to get more practical results. Simulation results show that both voltage regulation and transient stability enhancement can be achieved regardless of the system operating point, and compared to other kinds of controllers, the proposed controller gives better dynamic performance and robustness.

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FACTS与发电机励磁系统的协调控制方法

为了提高电力系统的动态稳定性，本文提出了一种鲁棒控制方法来协调控制地理分布的FACTS设备和发电机励磁系统。首先，建立了非线性反馈律，使系统模型线性化。然后，将FACTS与励磁系统之间的相互作用作为参数不确定性处理，采用鲁棒控制理论进行求解。所提出的协调控制器是基于局部测量设计的。最后以安装了TCSC的电力系统为例，验证了该方法的有效性。控制目标是实现电压调节和系统稳定性增强。利用实时数字模拟器(Real Time Digital Simulator, RTDS)进行实时仿真，以获得更实用的结果。仿真结果表明，无论系统工作点如何，该控制器都能实现电压调节和暂态稳定增强，与其他类型的控制器相比，该控制器具有更好的动态性能和鲁棒性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2001 IEEE/PES Transmission and Distribution Conference and Exposition. Developing New Perspectives (Cat. No.01CH37294)

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