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电网技术  2014 

基于多代理的紧急直流功率支援策略研究

DOI: 10.13335/j.1000-3673.pst.2014.05.004, PP. 1150-1155

Keywords: 紧急协调控制,多代理,最佳控制敏感点,电压敏感点,通信延迟

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Abstract:

利用直流进行紧急功率支援对单直流系统有一定控制效果,但其缺乏考虑后续阻尼以及电压波动等因素。尤其对于多馈入直流输电系统,该方法则因缺乏协调控制而有一定局限性。为此,提出一种考虑上述因素的多目标紧急协调控制新方法,基于多代理系统(multi-agentsystem,MAS)技术设计了紧急直流功率支援的控制系统,并详细分析了3个主要Agent控制的实现方式。在紧急控制Agent中定义了紧急功率支援指标,以量化直流系统紧急提升最小量;在附加信号调节Agent中通过挖掘最佳控制敏感点进行直流附加控制;在逆变站无功调节Agent中定义了电压敏感点指标,以筛选多直流中电压最为敏感的直流逆变站进行无功调节。最后在考虑通信延迟的条件下以某多直流馈入系统为对象进行仿真,结果证明了所提协调控制方法的有效性。

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