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大型电力系统中广域阻尼控制器的配置和反馈信号选择 被引量:8

Allocation and feedback signal selection of wide-area damping controller in large scale power systems
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摘要 针对互联电网的区间低频振荡问题,提出一种适用于大型电力系统中广域阻尼控制器的配置和反馈信号选择的方法。采用模式可控性指标对控制装置进行选点配置,并根据模式分析理论和多输入多输出控制理论相结合的思想,采用综合筛选法为已配置的控制点选择合适的广域反馈信号。综合筛选法通过4个指标对可选的众多广域信号进行逐级筛选。综合筛选法综合考虑控制器输入和输出的相互作用以及多控制器之间的协调,使得选点和选信号可以统筹兼顾。新英格兰测试系统的仿真结果验证了该方法能有效地阻尼系统的区间振荡模式,提高了系统的稳定性。 Aiming at the inter-area low-frequency oscillation in interconnected power system, a method is proposed for the optimal allocation of wide-area damping controller and the feedback signal selection in large scale power systems. Mode controllability is used as an index for controller allocation and the synthesis sieve method is adopted to select the right feedback signals for the allocated controller, which is based on mode analysis and multi-input and multi-out control theory. Synthesis sieve method filters numerous wide -area signals by four indices gradually. It considers the interactions between input and output and the coordination among multiple controllers for both allocation test power system show the inter-area oscillation mode and signal selection. Simulations on New England damped and the system stabilitv enhanced.
出处 《电力自动化设备》 EI CSCD 北大核心 2009年第2期21-25,共5页 Electric Power Automation Equipment
基金 国家电网公司科技项目(SGKJ[2007]185)~~
关键词 广域测量系统 低频振荡 区间振荡模式 广域阻尼控制器 综合筛选法 wide-area measurement system low frequency oscillation inter-area oscillation node wide-area damping controller synthesis sieve method
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