彭寒梅;李帅虎;李辉;黄小庆;

• 1:湘潭大学信息工程学院
• 2:湖南大学电气与信息工程学院

摘要(Abstract)：

交直流混合微电网包含交流子系统、直流子系统及连接2种子系统的互连变换器(interlinking converter,ILC)。针对下垂协调控制策略下孤岛运行交直流混合微电网的潮流计算,提出基于带新型线性搜索三步LM(three-steps Levenberg Marquardt algorithm with a new line search,NTLM)算法的交替迭代方法。首先分析ILC装置的控制方法,建立其节点潮流模型;结合提出的3种直流节点类型和4种交流节点类型,建立交、直流子系统的统一潮流模型。然后提出NTLM算法求解统一潮流模型,在此基础上,进行交、直流子系统交替迭代潮流计算,得到交直流混合微电网的潮流解。最后,通过改造的孤岛运行交直流混合微电网系统的仿真算例,验证所提方法的正确性和有效性。

关键词(KeyWords)： 交直流混合微电网;潮流计算;互连变换器;NTLM算法;统一潮流模型

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51507149)~~

作者(Author): 彭寒梅;李帅虎;李辉;黄小庆;

Email:

DOI: 10.13335/j.1000-3673.pst.2017.0379

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