电测与仪表2018，Vol.55Issue(5)：57-62,118,7.
基于混合H2/H∞控制理论的交直流并联系统机网阻尼协调控制
A coordinated damping control of generator and gird in AC/DC parallel power system based on mixed H2/H∞ control method
摘要
Abstract
In light of the low damping and low frequency oscillation problems in AC/DC parallel power system,a coordinated damping control strategy of generator and gird based on mixed H2/H∞ control theory is proposed in this paper.Firstly,system oscillation model and open-loop reduced order model are identified by the total least squares-estimation of signal parameters via rotational invariance techniques (TLS-ESPRIT) algorithm.Combining H2/H∞ control theory and adopting the solution method of linear matrix inequalities and the output feedback structure,the supplementary robust damping controllers of high voltage direct current (HVDC) and generator is designed,whose advantages are easy to be solved,with simple construct of controller,and strong robustness.In the end,a four-machine in two-domain test system is built in PSCAD/EMTDC,and compared with the traditional supplementary damping controller,the simulation results verify the effectiveness and robustness of the coordinated damping control of generator and关键词
交直流并联系统/低频振荡/鲁棒控制/附加阻尼控制/机网协调控制Key words
parallel AC/DC power system/low frequency oscillation/robust control/supplementary damping control/coordinated control of generator and gird分类
信息技术与安全科学引用本文复制引用
张爽,曾雪洋,摆存曦,田蓓,李保宏,刘天琪..基于混合H2/H∞控制理论的交直流并联系统机网阻尼协调控制[J].电测与仪表,2018,55(5):57-62,118,7.基金项目
国家电网公司科技项目(SGNXDK00 BGJS1600021) （SGNXDK00 BGJS1600021）
