数字式电力系统稳定器(DPSS)  

DIGITAL POWER SYSTEM STABILIZER ( DPSS )

作　　者：陈干平[1] 徐国禹[1] 秦翼鸿[1] 

机构地区：[1]重庆大学电气工程系

出　　处：《重庆大学学报（自然科学版）》1990年第1期43-48,共6页Journal of Chongqing University

基　　金：国家自然科学基金

摘　　要：本文提出了一种数字式电力系统稳定器(DPSS)及其设计方法。利用参数辩识思想对单机无穷大电力系统进行离线辩识来获得其数学模型,在辩识模型的基础上按广义最小方差控制原理设计控制系统。通过信息的组合反馈,本控制系统具有自动电压调节及抑制低频振荡的双重功能。为避免出现静态偏差,采用离散广义最小方差控制与连续积分控制相结合的方式,收到良好效果。本控制系统结构简单,实现方便,不失为一种保证电力系统稳定及运行质量的有效措施。A digital power system stabilizer ( DPSS ) and its design method are presented in this paper. The mathematical model of a single machine infinite bus power system is obtained using off-line parameter identifications, and on the base of the identified model the control system is synthesized by generalized minimum variance control principles. Through feedback combination of several signals this control system has double functions of damping low frequency oscillation and automatic voltage regulating. In order to avoid static errors the very effective way is to combine discrete generalized minimum variance control with continuous integral control. Besides the proposed control strategy is very simple in structures and very easy to realize. Simulation results under several cases have shown the correctness and effectiveness of the proposed control strategy.

关 键 词：数字式控制系统 电力系统稳定器 自动电压调节器 参数辩识 广义最小方差控制 

分 类 号：TM712[电气工程—电力系统及自动化] TM571.65