含风电孤立中压微电网暂态电压稳定协同控制策略  

Cooperative control of transient voltage stability for islanded medium-voltage microgrid with wind power

作　　者：赵卓立[1,2] 杨苹[1,3,4] 蔡泽祥[1] 周少雄[3,4] Timothy C.Green 

机构地区：[1]华南理工大学电力学院,广东广州510641 [2]帝国理工学院 [3]华南理工大学风电控制与并网技术国家地方联合工程实验室,广东广州511458 [4]华南理工大学广东省绿色能源技术重点实验室,广东广州511458

出　　处：《电力自动化设备》2015年第10期1-9,共9页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(61273172);广东省科技计划项目(2012B040303005);广州市南沙区科技计划项目(2013P005);南方电网科学研究院科技项目(SEPRI-K143003);国家留学基金管理委员会资助联合培养博士研究生项目(201406150017)~~

摘　　要：分析了孤立中压微电网中双馈异步风力发电机组(DFIG)与动态负荷的暂态运行特性。为改善含DFIG微电网的暂态电压稳定性,提出了基于就地层储能稳定控制、DFIG快速变桨控制和甩动态负荷的暂态电压稳定协同控制策略。基于PSCAD/EMTDC建立了东澳岛中压微电网系统和稳定控制策略模型,研究结果表明,微电网暂态电压稳定性与微电网中风电渗透率和负荷特性密切相关;在大扰动下,提出的暂态电压稳定协同控制策略能有效增强微电网的电压稳定性。The transient operating characteristics of DFIG（Doubly-Fed Induction Generator） and dynamic loads are analyzed for islanded medium-voltage microgrid. A locally coordinative control strategy based on the energy storage stability control,fast wind turbine pitch angle control and dynamic load shedding is proposed to improve the transient voltage stability of microgrid with DFIG. The medium-voltage microgrid system of Dongao Island and the corresponding stability control strategy model are established based on PSCAD / EMTDC. Research results indicate that,the transient voltage stability of microgrid is closely related to the penetration rate of wind power and the load characteristic;the proposed control strategy can effectively enhance the voltage stability of microgrid under serious disturbance.

关 键 词：风电 微电网 双馈异步风力发电机组 储能 暂态电压稳定 协同控制策略 

分 类 号：TM712[电气工程—电力系统及自动化] TM614