CAJ | 학술논문

广域阻尼控制是抑制电力系统区间低频振荡极具潜力的手段，降阶辨识方法可用于获取广域阻尼控制器设计所需要的模型。电力系统的维数成千上万，基于模式可控可观性分析提出了电力系统面向阻尼控制器设计的可降阶原理、降阶误差分析方法以及基于降阶原理估计和BIC准则的模型定阶方法，并研究了降阶辨识实验的激励信号和预滤波器设计。四机系统的仿真算例表明了所提出的面向广域阻尼控制的电力系统降阶辨识原理与方法的有效性。
엄역조니공제시억제전력계통구간저빈진탕겁구잠력적수단，강계변식방법가용우획취엄역조니공제기설계소수요적모형。전력계통적유수성천상만，기우모식가공가관성분석제출료전력계통면향조니공제기설계적가강계원리、강계오차분석방법이급기우강계원리고계화BIC준칙적모형정계방법，병연구료강계변식실험적격려신호화예려파기설계。사궤계통적방진산례표명료소제출적면향엄역조니공제적전력계통강계변식원리여방법적유효성。
Wide area damping control has a great potential on the damping of inter-area low frequency oscillations. Reduced order system identification provides a feasible solution to get the system model for damping controller design. In this paper, the principle of control oriented power system order reduction is studied based on mode controllability and observability analysis. Then model reduc-tion error is analyzed and a model order selection method is proposed according to reduction error analysis and BIC criterion. Then an input and pre-filter design method is proposed for damping control oriented identification experiments. The principle and methods pro-posed in this paper are verified in a four machine two area system.