稳定风电输出功率的控制策略研究  

Research of Control Strategy to Stabilizing Output Power of Wind Generator

作　　者：张连芹[1] 邰能灵[1] 王江海[1] 兰森林[2] 唐跃中[2] 钟勇 

机构地区：[1]上海交通大学电气工程系,上海200240 [2]上海市电力公司市南供电公司,上海200233 [3]上海思南电力通信有限公司,上海201112

出　　处：《水电能源科学》2012年第8期179-183,220,共6页Water Resources and Power

基　　金：国家自然科学基金资助项目(51177066)

摘　　要：为稳定风电系统输出功率,提出一种在变流器的直流侧加入超级电容器(EDLC)储能的新拓扑结构,通过分析全功率双脉宽调制交-直-交变流器的控制策略,基于永磁直驱风电机组与电网连接的拓扑结构,提出超级电容器储能系统稳定风电系统输出功率的控制策略和输出功率的解耦控制方法,分析了风电系统输出功率初始值和超级电容器容量对输出功率稳定性的影响,并针对典型风速变化给出了输出功率初始值与超级电容器容量的整定范围。In this paper, a new topology is proposed to achieve stable active output power of wind power systems, which can conveniently add the electrical double-layer capacitor （EDLC） energy storage system to the DC side of the convertor. According to the analysis of the control strategy of dual-PWM AC-DC-AC converter and the topology that connects the direct driven permanent magnet synchronous generator for wind turbines with the power grid, the control strategy is presented for stabilizing active output power of wind power system by using EDLC and releasing the active and reac tive output power. The influence factors of stabilizing active power including the initial value settings of active output power and the size of EDLC capacity are discussed. For a typical wind condition, the initial value of active power output and the size of EDLC capacity are estimated.

关 键 词：永磁直驱风电机 超级电容器 功率控制 控制策略 解耦控制 

分 类 号：TM614[电气工程—电力系统及自动化] TM712