风力发电机并网后的电网电压和功率分析Analysis on Voltage and Power of Power Grid Connected With Wind Turbine Generators
张新燕;王维庆;
摘要(Abstract):
对用鼠笼式感应发电机发电的恒速风力机和用双馈感应发电机发电的变速风力机的工作原理及其在电网的接入方式、接入风力发电机后的电网电压和功率进行了分析,对不同风电穿透力下电压对风速扰动的响应进行了讨论,并对电网故障时电压变化及风电场低压穿越技术进行了研究。采用理论分析与计算机仿真方法得到了相关结论:不同风力机机型对电网的作用不同;鼠笼式风电机组构成的风电场穿透功率大于10%以后会引起公共连接点处电压偏移超过10%;电网故障后双馈风电机组和鼠笼式风电机组电压恢复能力不同,在风电场加入STATCOM后,可以实现低电压穿越。
关键词(KeyWords): 风力发电机;并网;节点电压;风电穿透力;仿真
基金项目(Foundation): 国家自然科学基金资助项目(50767003);; 新疆教育厅基金项目(xjedu2007I05)~~
作者(Author): 张新燕;王维庆;
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参考文献(References):
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