江琴;刘天琪;曾雪洋;艾青;印月;刘明忠;

• 1:四川大学电气信息学院
• 2:国网四川省电力公司电力科学研究院

摘要(Abstract)：

风火打捆交直流外送系统提高了我国新能源的利用率,风电与直流系统共同影响着系统的暂态稳定。针对含大规模风电接入经交直流非并联送出的三区域系统,分析了双馈风机与直流系统的运行特性及对送端系统的影响,将两者的综合作用等效为系统的等值机械功率增量,推导了相应的转子运动方程,得到三区域系统暂态功角稳定分析模型。根据该模型基于扩展等面积定则揭示了大规模风电与直流系统综合作用对送端系统暂态稳定的影响机理,研究了不同故障类型下系统的暂态稳定性。最后通过仿真验证了所提理论的正确性,为大规模新能源跨区域传输的开发利用及其稳定控制提供了理论基础。

关键词(KeyWords)： 大规模风电接入;交直流混联系统;扩展等面积法;等值机械功率;暂态稳定

Abstract:

Keywords:

基金项目(Foundation): 四川省科技厅重点研发项目(2017GZ0054)~~

作者(Author): 江琴;刘天琪;曾雪洋;艾青;印月;刘明忠;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.0356

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