含蓄电池储能的永磁直驱风力发电系统并网研究  

A Study on Grid Connection of Direct-driven PM Wind Power System Containing Battery Energy Storage

作　　者：徐小三[1] 张明[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《电气自动化》2015年第3期37-39,共3页Electrical Automation

基　　金：以大规模可再生能源利用为特征的智能电网综合示范工程(2013BAA01B04)

摘　　要：风力发电系统输出功率的随机性和波动性,给大规模风电并网带来严重挑战。为了有效地改善永磁直驱风力发电系统并网特性,在直流侧增加蓄电池储能装置。设计了储能电池侧双向DC/DC变换器的控制策略,建立了含有储能电池的风力发电系统仿真模型。分别仿真分析了电网侧需求功率变化以及风速变化时系统的动态响应特性。仿真结果证明,增加蓄电池储能装置可以有效地提高永磁直驱风电系统并网特性。Randomness and volatility of the output power of the wind power system brings a serious challenge to large-scale wind power grid connection. To enhance the grid connection characters of the direct-driven PM wind power system, an additional battery energy storage system （ BESS） is used at the DC side. A control strategy for the bi-directional DC/DC converter at the energy storage battery is developed, and a simulation model with the wind power system containing the energy storage battery is established. Simulation and analysis is made of the change of required power at the grid side and the dynamic response characteristic of the system in case of wind speed change. The simulation results show that the application of the battery energy storage device can effectively enhance the grid connection characteristics of the direct-driven PM wing power system.

关 键 词：永磁直驱风电系统 电池储能系统 双向DC/DC变换器 控制策略 有功功率平滑 

分 类 号：TM614[电气工程—电力系统及自动化]