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Design of wide-area damping controllers using the block relative gain

机译:使用块相对增益的广域阻尼控制器设计

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A novel technique to determine the best pairing of inputs and outputs for the design of wide-area damping controllers (WADCs) is proposed. The method extends the conventional use of the relative gain array (RGA) for interacting control systems, to the block relative gain (BRG) to analyze interactions among multi-input multi-output (MIMO) controllers. First, geometric measures of controllability and observability are used to screen the most effective stabilizing signals for partially centralized control of large interconnected power systems. Then, the BRG analysis is used to quantify the potential for adverse interactions between a given set of controllers or subsystems. This gives candidate sets for supplementary controllers which are solved using linear matrix inequality (LMI) techniques and are evaluated in closed-loop mode to detect and quantify process interactions. In general, this approach also allows better coordination of control capabilities and the use of interaction measures to help in the choice of control location and structure. The effectiveness of the proposed control scheme on system behavior is tested on a realistic 5-area model of the Mexican interconnected power system. (C) 2015 Elsevier B.V. All rights reserved.
机译:提出了一种确定广域阻尼控制器(WADC)设计的最佳输入和输出配对的新技术。该方法将用于交互控制系统的相对增益阵列(RGA)的常规用法扩展到块相对增益(BRG),以分析多输入多输出(MIMO)控制器之间的交互。首先,可控性和可观察性的几何度量用于筛选最有效的稳定信号,用于大型互连电力系统的部分集中控制。然后,BRG分析用于量化一组给定的控制器或子系统之间潜在的不利相互作用。这给出了使用线性矩阵不等式(LMI)技术求解的补充控制器的候选集,并在闭环模式下对其进行了评估,以检测和量化过程交互作用。通常,此方法还可以更好地协调控制功能并使用交互措施来帮助选择控制位置和结构。在墨西哥互连电力系统的实际5区模型上测试了所提出的控制方案对系统行为的有效性。 (C)2015 Elsevier B.V.保留所有权利。

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