电网技术Issue(4)：1008-1013,6.DOI:10.13335/j.1000-3673.pst.2014.04.028
统一潮流控制器多目标协调控制策略研究
Study on Multi-Objective Coordinated Control Strategy of Unified Power Flow Controller
摘要
Abstract
ABSTRACT:As for the unified power flow controller (UPFC) applied in power grid there are multi control objectives as adjusting line power flows, maintaining bus voltages, improving transient stability and so on, however the implementation of these objectives are not entirely uniform. When UPFC adopts the control strategy for a certain objective, the requirements of multi operating conditions cannot be satisfied, for this reason, the implementing principles and control methods of UPFC’s different control objectives are analyzed and the relationship among these objectives and the reason causing the inconsistency among them are expounded, on this basis, a multi-objective coordinated control strategy is proposed and utilizing fuzzy logic an auxiliary controller, by which the magnitude of additional signal can be adaptively adjusted according to operating conditions of power grid and then the coordinated control among multi-objectives can be implemented, is designed. The proposed control strategy makes the voltage and line power flows enable to rigorously track the reference value during steady state operation of power grid, and after the occurrence of transient disturbance the transient stability limit can be farthest maximized while the system voltage and line power flows can be maintained within allowed ranges, meanwhile the system damping can be increased and the system oscillation can be rapidly suppressed. The correctness of theoretical analysis and effectiveness of the proposed coordinated control strategy are validated by results of PSCAD/EMTDC based simulation of a two-area four-machine system.关键词
统一潮流控制器/多目标协调/模糊逻辑/PSCAD/EMTDCKey words
unified power flow controller/multi-objective coordinated/fuzzy logic/PSCAD/EMTDC分类
信息技术与安全科学引用本文复制引用
张曼,张春朋,姜齐荣,周飞,宋洁莹..统一潮流控制器多目标协调控制策略研究[J].电网技术,2014,(4):1008-1013,6.基金项目
国家高技术研究发展计划(2012AA050401)和江苏省科技支撑项目(BE2011095)。 （2012AA050401）
