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首页> 外文期刊>IEEE Transactions on Power Systems >Coordinated Wide-Area Control of Multiple Controllers in a Power System Embedded With HVDC Lines
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Coordinated Wide-Area Control of Multiple Controllers in a Power System Embedded With HVDC Lines

机译：嵌入HVDC线路电力系统中多控制器的协调广域控制

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摘要

This paper develops a coordinated wide-area control of power system stabilizers (PSSs), static VAr compensators (SVCs), and supplementary damping controllers (SDCs) for damping low frequency oscillations (LFOs) in a power system embedded with multiple high voltage DC (HVDC) lines. The improved damping is achieved by designing a coordinated wide-area damping controller (CWADC) that employs partial state feedback. The design methodology uses a linear matrix inequality (LMI)-based mixed H-2/H-infinity robust control for multiple operating scenarios. To reduce the high computational burden, an enhanced version of selective modal analysis (SMA) is employed that not only reduces the number of required wide-area feedback signals, but also identifies alternate feedback signals, in case of failure of the primary signals. Additionally, the impact of delays on the performance of the control design is investigated. The studies are performed on a 29 machine, 127 bus equivalent model of the Western Electricity Coordinating Council (WECC) system-embedded with three HVDC lines and two wind farms.
机译：本文开发了电力系统稳定器（PSS），静态VAR补偿器（SVC）和补充阻尼控制器（SDC）的协调广域控制，用于嵌入多个高压DC的电源系统中的低频振荡（LFO）（ HVDC）线条。通过设计采用部分状态反馈的协调的广域阻尼控制器（CWADC）来实现改进的阻尼。设计方法使用线性矩阵不等式（LMI）为多个操作场景进行了基于混合的H-2 / H-Infinity鲁棒控制。为了减少高计算负担，采用增强版的选择性模态分析（SMA），其不仅降低了所需的广域反馈信号的数量，而且还识别了主信号故障的情况下识别备用反馈信号。另外，研究了延迟对控制设计性能的影响。这些研究是在西部电力协调委员会（WECC）系统的29台机器，127母线等效模型上进行的，系统嵌入三条HVDC线和两个风电场。

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