电力系统保护与控制Issue(5):83-90,8.
基于目标全息反馈的统一潮流控制器非线性控制设计
Nonlinear control design for UPFC based on NCOHF
摘要
Abstract
For improving the control performance of the Unified Power Flow Controller (UPFC), a control design method based on the Nonlinear Control method with Objective Holographic Feedbacks (NCOHF) is proposed for the UPFC control system. Applying the design scheme, we select the control objects of the original UPFC system as the object state quantity, and establish a dynamic equation for it, transforming the control targets of UPFC into the linear space. Then, the linear feedback control law is obtained, which allows control targets to be fully restrained by the performance index, and makes the control law contain the feedback information of all control targets. After that, a better controller of UPFC is derived through the control theory of NCOHF and linear optimal feedback control law. Simulation results show that the UPFC control system based on the NCOHF can track control targets well, and solve the issue of access point voltage static shift effectively. It manifests that there is perfect harmony between the dynamic and the static performances of the UPFC, and it can effectively improve the transient stability of power system.关键词
UPFC/目标全息反馈/非线性控制/多目标控制/暂态稳定/动态约束/静态约束Key words
UPFC/objective holographic feedbacks/nonlinear control/multi-objective control/transient stability/dynamic constraint/static constraint分类
信息技术与安全科学引用本文复制引用
李秋文,李啸骢,邓裕文,王乐,游晓枫,柴小亮..基于目标全息反馈的统一潮流控制器非线性控制设计[J].电力系统保护与控制,2013,(5):83-90,8.基金项目
国家自然科学基金(50747026)和广西自然科学基金(0728027) (50747026)
广西自治区研究生创新教育项目(105931003092、GXU11T32598) (105931003092、GXU11T32598)