电力系统及其自动化学报2017，Vol.29Issue(5)：28-34,7.DOI:10.3969/j.issn.1003-8930.2017.05.005
高压直流自适应变结构控制器设计
Design of Self-adaptive Variable Structure Controller of HVDC System
摘要
Abstract
Based on total least squares-estimation on signal parameters via rotational invariance technique(TLS-ES?PRIT),the new additional variable structure controller of high voltage direct current(HVDV)system has better control performance than the traditional variable structure controller when there is small or no change at the system working point. However,when a large disturbance is added,which results in the change of system working point,the traditional variable structure controller designed based on real system outperforms the new type controller. In order to optimize the controller further,by taking the extent of the peak value of the control target deviating from the ideal value as a switch?ing criterion,a self-adaptive additional variable structure controller is designed,which can switch between the new and traditional variable structure controllers flexibly. When there is small or no change at the system working point ,the new type controller is used;else,it is automatically switched to the traditional one. With a two-area four-machine system as an example,the simulation result indicates that by combining the advantages of the new and traditional controllers,the self-adaptive variable structure controller has better robustness and control performance.关键词
高压直流/新型变结构控制/切换/自适应Key words
high voltage direct current(HVDC )/new variable structure control/switch/self-adaptive分类
信息技术与安全科学引用本文复制引用
付伟,刘天琪,李兴源,赵睿,李保宏..高压直流自适应变结构控制器设计[J].电力系统及其自动化学报,2017,29(5):28-34,7.基金项目
国家自然科学基金资助项目(51037003) （51037003）
国家电网公司大电网重大专项资助项目课题(SGCC-MPLG001-027-2012) （SGCC-MPLG001-027-2012）
