基于耦合振子模型的含风电电力系统聚类同步  

Clustering synchronization of wind power system based on coupled oscillator model

作　　者：李静宇 周明[1] 李庚银[1] LI Jingyu;ZHOU Ming;LI Gengyin(State Key Laboratory of New Energy Power System,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《现代电子技术》2019年第5期135-140,共6页Modern Electronics Technique

基　　金：国家重点研发计划资助项目(2016YFB0900100);国家自然科学基金重大项目课题(51190103);国家电网公司科技项目含特/超高压直流接入的弱送端电网安全品质评价及网架加强方案优化研究~~

摘　　要：针对含风电的电力系统受到扰动后发生严重的系统同步问题,提出基于Kuramoto模型的网络耦合聚类同步方法。应用图论理论建立电力网络收缩模型,在此基础上建立基于Kuramoto耦合振子模型电力系统等值模型,并提出基于动态耦合强度的电力网络聚类算法,该方法在系统发生扰动后能够快速、准确地将系统内振子的同步状态进行聚类。通过含有风电场的39节点新英格兰系统进行验证,仿真结果表明,通过聚类后各机群分析可以更清晰地了解电网的同步状态,避免系统进一步崩溃。A network coupled clustering synchronization method based on Kuramoto model is proposed to solve the serious system synchronization problem caused by the disturbance of the wind power electric system.The graph theory is used to establish the power network contraction model.On this basis,the electric system equivalent model based on Kuramoto coupled oscillator model is established,and a power network clustering algorithm based on dynamic coupling strength is proposed.This method can quickly and accurately cluster the synchronous state of oscillator in the system after system disturbance.The 39.node New England system with wind farms is verified.The simulation results show that the cluster analysis can understand the synchronization state of the power grid clearly,and avoid the further collapse of the system.

关 键 词：图论 Kuramoto模型 Kron简化 聚类同步 耦合振子 风电 

分 类 号：TN99.34[电子电信—信号与信息处理]