定速和变速风电机组闪变成因的对比分析  

Analysis of Influence Factors on Voltage Fluctuation and Voltage Flicker of Constant Speed and Variable Speed Wind Power Unit

作　　者：王海云[1] 王维庆[2] 周丹华[3] 

机构地区：[1]西安交通大学电气工程学院,陕西省西安市710049 [2]新疆大学电气工程学院,新疆省乌鲁木齐市830046 [3]中国测试技术研究院,四川省成都市610000

出　　处：《电力设备》2008年第8期45-47,共3页Electrical Equipment

基　　金：教育部博士点专项基金项目(20060755001)

摘　　要：风力发电机组的并网运行对当地电网的电能质量有不良影响。依据并网风电机组电能质量的国际电工标准IEC 61400—21,讨论定速、变速两种典型机型的闪变成因,总结影响风电机组电压波动和闪变的主要因素。通过两种机型对电能质量影响的对比分析,总结变速机型的控制机理和运行特点与闪变的关系,综述风电场闪变特性的研究成果。Operation of grid-connected wind power units has a negative impact on the power quality of local netwerk. This paper discusses the causation of voltage fluctuation and voltage flicker of constant speed and variable speed two typical wind power units according to IEC 61400 -21 standard on power quality of grid-comected wind power trait and summarizes the main factors influencing wltage fluctuation and flicker of wind power traits.By contrasting and analyzing the impacts of two trait types on the power quality, this paper summarizes the relationship between wltage flicker and controlling mechanism and operation features of variable speed trait type,finally sums up the study achievements on the wltage flicker characteristics of wind power farm.

关 键 词：电压波动 闪变 变速风力发电机组 风电场 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]