笼型风电机组结构的风力发电系统运行仿真分析
2016-06-07赛尔山伙加居曼常喜强郭小龙张新燕
赛尔山伙加·居曼,常喜强,郭小龙,张新燕
(1.新疆大学电气工程学院,新疆,乌鲁木齐 830047;2.国网新疆电力调度控制中心,新疆 乌鲁木齐 830003)
笼型风电机组结构的风力发电系统运行仿真分析
赛尔山伙加·居曼1,常喜强2,郭小龙2,张新燕1
(1.新疆大学电气工程学院,新疆,乌鲁木齐830047;2.国网新疆电力调度控制中心,新疆 乌鲁木齐830003)
摘要:在当今世纪能源日渐短缺、气候变化和环境日益恶化的全球背景下,风能作为一种清洁、可再生能源受到了高度的关注。介绍了笼型异步风力发电系统的类型和基本工作原理,并针对笼型异步风力发电系统建立了动态数学模型。其次,在 Matlab/Simulink 仿真环境下构建风电场并网系统的模型,通过仿真分析,研究笼型异步风力发电系统的稳定机理;并通过对风速扰动、线路断线故障、线路短路故障等各种扰动下的系统运行状况进行动态仿真,最后针对仿真结果提出提高系统稳定性的措施。
关键词:笼型风电机组;风力发电;系统运行;电压稳定性;动态仿真
Abstract:In the present century, energy is getting shorter, climate is changing and environment is becoming increasingly worse, so under this background, wind energy, a kind of clean and renewable energy sources, has attracted extensive attention. The type and basic working principle of cage asynchronous wind power generation system are introduced, and the dynamic mathematical model of cage asynchronous wind power generation system is established. Then, the model of wind power grid system is built using Matlab/Simulink. Through the simulation analysis, the stabilizing mechanism of cage asynchronous wind power generation system is studied, and the dynamic simulation of system operating condition is carried out under different disturbances such as wind speed variation, line breaking fault and short-circuit fault. Finally some conclusions are obtained, and the measures to increase the stability of cage asynchronous wind power generation system are proposed.
Key words:cage-type wind turbine generator system; wind power generation; system operation; voltage stability; dynamic simulation
0引言
由于传统的化石能源正在逐渐枯竭,风能作为一种储量巨大的可再生绿色能源,得到全世界的广泛重视和快速发展。随着风电的迅速发展,大规模风电场的陆续出现,风电装机容量在电力系统中所占的比例越来越大,风力发电对电力系统的影响也逐渐增大,严重故障情况下甚至会引起系统不稳定。因此,对各种扰动下的鼠笼式异步风力发电系统能否维持稳定运行进行研究,以及如何提高其运行的稳定性是十分必要的[1-2]。……
