风电引起的电压波动与闪变的仿真研究Simulation Study on Voltage Fluctuations and Flicker Caused by Wind Farms
吴义纯;丁明;
摘要(Abstract):
风能存在随机性,大规模风电并网后会引起附近电网电压波动,风况、风电机组特性和电网状况会对风电引起的电压波动与闪变有影响。文章从风能和风力发电机组特性出发,建立了含风电机组的电网仿真模型,基于Matlab/Simulink搭建了仿真模型,研究了风电场所接入电网状况对风电引起的电压波动与闪变的影响。算例结果表明,系统短路容量和线路电抗与电阻比等对风电场的电压波动与闪变有较大的影响,通过选取合适的并网点和电压等级、合适的线路电抗与电阻比,能够有效抑制风电引起的电压波动与闪变。
关键词(KeyWords): 风力发电;电能质量;电网状况;电压波动与闪变;Matlab/Simulink
基金项目(Foundation): 国家自然科学基金资助项目(50837001);; 安徽省高等学校青年教师科研资助计划(2007jq1192)~~
作者(Author): 吴义纯;丁明;
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