摘要
为了提高多馈入直流输电系统的稳定性,该文采用可选择控制结构的部分输出量反馈最优分散协调控制算法设计出了以全系统动态最优为目标的分散协调直流附加控制器,并在设计步骤中引入模态可控程度与模态可观测程度的概念来优选控制器安装地点以及控制反馈信号,从而最大程度地发挥了该控制算法可选择控制结构的特点。算例仿真分析显示了所设计控制器在协调作用下对系统多个振荡模态的良好阻尼效果,证明了该协调控制器设计方法的有效性。
To enhance the stability of multi-infeed HVDC transmission systems, a decentralized coordinated additional DC controller with optional structures is designed in this paper. The controller is based on decentralized coordinated optimization algorithm for improving the dynamic characteristics of the total system. The concepts of modal controllable degree and modal observable degree are proposed to choose the control feedback signals and installed points of controllers in the design process. Simulation results show that the coordinated controllers can damp several oscillation modals The validity of the coordinated control design method is proved.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2005年第16期8-12,共5页
Proceedings of the CSEE
基金
国家自然科学基金项目(5059541250377017)
国家重点基础研究专项经费项目(2004CB217907)~~
关键词
电力系统
多馈入直流输电系统
分散协调控制
模态可控程度
模态可观测程度
Power system
Multi-infeed HVDC system
Decentralized coordinated control
Modal controllable degree
Modal observable degree
