电力系统自动化2011,Vol.35Issue(15):40-45,6.
基于分层控制的AGC与AVC自动优化协调控制策略
An Optimal Coordinated Control Strategy of AGC and AVC Based on Hierarchical Control
摘要
Abstract
There exist negative effects between the control commands and control targets of the automatic generation control(AGC) and automatic voltage control(AVC) system,which is apt to result in such problems as system security and overshoot.By adopting the decomposition-coordination method between active frequency and reactive voltage based on time dimension,a coordinated automatic control system of AGC and AVC based on hierarchical control is built.The design scheme of each control layer is also given.The upper controller optimizes and coordinates active and reactive power,and provides economical,safe,and optimal reference setting trajectory.The lower controller improves the control strategy of AGC in advance thus realizing comprehensive energy saving.And a study of the AGC effects to be exerted on voltage control is made.By means of the corresponding reactive voltage control command,optimal coordinated control of the economy and security of the power system are realized,enabling the system to operate in the multi-objective sub-optimal region.Meanwhile,the AGC and AVC commands should be checked and revised by employing the staggered iteration concept to obtain the comprehensive coordination command and minimize the negative effects of the two on each other.The effectiveness of the control system,strategy and method proposed is proved by computer simulation results.关键词
分层控制/自动发电控制/自动电压控制/优化协调/交叉迭代Key words
hierarchical control/automatic generation control(AGC)/automatic voltage control(AVC)/optimal coordination/staggered iteration分类
信息技术与安全科学引用本文复制引用
胡伟,王淑颖,徐飞,张伟,周济..基于分层控制的AGC与AVC自动优化协调控制策略[J].电力系统自动化,2011,35(15):40-45,6.基金项目
国家自然科学基金资助项目 ()
国家电网公司科技项目 ()
湖北省电力公司科技项目~~ ()