%0 Journal Article
%T Emergency DC power control strategy for quickly suppressing inter-zone disturbance based on time-optimal control theory<br>基于时间最优的快速平息区间扰动的紧急直流功率控制策略
%A Xie Hui-fan
%A ZHANG Yao
%A DENG Quan-shuai
%A LIN Ling-xue
%A ZHONG Qing
%A <br>谢惠藩
%A 张尧
%A 邓权帅
%A 林凌雪
%A 钟庆
%J 控制理论与应用
%D 2009
%I 
%X Based on the equivalent-two-machine-two-area AC/DC parallel system, a time optimal control(TOC) plan for a second-order oscillation system is developed and a TOC strategy for quickly suppressing interzone disturbance is proposed. Firstly, the TOC theory is introduced to drive system states to a post-fault equilibrium point, and then, the nonlinear control theory is used to hold the states in that equilibrium point. Switching curve is also improved to avoid DC power jump-changing and to eliminate high-frequency nonlinear chattering and overshooting, and the optimal amount of DC power controlled by a minimal number of switching is derived. The simulation results show that the proposed TOC strategy can be combined with the practical DC Emergency Run-up and Run-back control functions to quickly and effectively suppress the interzone oscillation after a first angle swing.
%K time optimal control
%K emergency DC power support
%K second-order oscillation
%K DC power modulation<br>时间最优控制
%K 紧急直流功率支援
%K 2阶振荡
%K 直流功率调制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=104C5BC76BBFAB092D80D1CD76A5F61E&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=708DD6B15D2464E8&sid=A1CD1DC26CC35415&eid=F82BA45C3E48287D&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=0