中国电机工程学报2011，Vol.31Issue(19)：75-81,7.
基于附加虚拟阻抗和蚁群优化算法的动态等效模型在线修正方法
An Online Adjustment Method of Dynamic Equivalent Model Based on Additional Fictitious Impedances and Ant Colony Optimization Algorithm
摘要
Abstract
A novel method of online adjustment of dynamic equivalent model was proposed in this paper. Firstly, it was pointed out that the unreasonable aggregation algorithm and constant hypothesis of the time-varying system were main sources of equivalent error. Then, online adjustment was put forward to overcome the error caused by the time-varying characteristics of the system. Parameters in the equivalent model were too many to adjust directly. And the additional fictitious impedances were introduced to overcome this difficulty. These impedances were connected to equivalent generator and equivalent motor buses. Injecting power match at boundary nodes has been achieved by adjustment of fictitious impedances with ant colony optimization (ACO) algorithm. Online adjustment can be further realized when the dynamic equivalent model is modified timely according to real time information provided by the wide area measurement system (WAMS). Finally, simulation results of the IEEE 10-generator and 39-bus test system showed that both the static and transient precisions can be enhanced largely with this method, and the robustness of the equivalent model can also be improved.关键词
动态等效模型；虚拟阻抗：蚁群优化算法；在线修正；广域测量系统Key words
dynamic equivalent model/ additional fictitious impedance/ ant colony optimization (ACO)/ online adjustment/ wide area measurement system (WAMS)分类
信息技术与安全科学引用本文复制引用
周海强,鞠平,宋忠鹏,金宇清,孙国强..基于附加虚拟阻抗和蚁群优化算法的动态等效模型在线修正方法[J].中国电机工程学报,2011,31(19):75-81,7.基金项目
国家自然科学基金项目(50977021)；国家杰出青年科学基金(50725723)。 （50977021）
