异步风力发电机组软并网技术探讨  

Research on the Soft Cut-in Technology of Asynchronous Wind Turbines

作　　者：吴红霞[1] WU Hongxia(School of Mechanical and Electrical Engineering,Wuhan Donghu University,Wuhan 430212,China)

机构地区：[1]武汉东湖学院机电工程学院,湖北武汉430212

出　　处：《电工技术》2018年第11期79-81,共3页Electric Engineering

基　　金：武汉东湖学院青年自然科学基金项目-<微电网系统的运行控制与能量管理研究>(武东院研字[2016]3号)

摘　　要：软并网技术可使并网电流控制在一定范围内,大幅降低并网冲击电流,得到一个平稳的过渡过程。研究通过电压斜坡软并网控制方式,经晶闸管移相触发控制改变晶闸管的导通角,使加在电机定子上的电压按阶梯波的形式从某一较小的初值逐渐增加到全压状态,达到调压限流的目的。The soft cut-in technology can limit the grid connected current and reduce the inrush current,thus a smooth grid connected process is obtained.In this paper,a kind of voltage slope control method is proposed.The conduction angle of the thyristor is changed through its phase shift trigger control,and the voltage on the motor stator is gradually increased from a smaller initial value to a full pressure state in the form of a step wave,so that to regulate the voltage and limit the current.

关 键 词：异步风力发电机 软并网 电压斜坡 晶闸管 

分 类 号：TM614[电气工程—电力系统及自动化]