变压器支路处理新方法与配电网三相潮流计算

发布时间：2018-06-02 18:19

本文选题：配电网 + 三相潮流计算　；参考：《电力系统自动化》2014年18期

【摘要】：针对配电网中处理变压器支路繁琐、工作量大等问题,提出了一种新的变压器支路处理方法,并可方便地引入配电网三相潮流算法中。该方法根据变压器两侧序状态量的相移关系,建立相位变换矩阵,简化了变压器支路的处理,利用不对称线路三序解耦—补偿模型和配电网三序解耦特点,基于回路分析法生成各序网道路矩阵,建立节点序电压与注入序电流之间的关联公式,从而实现了含多变压器支路的不平衡配电网三相解耦潮流计算。算法中的三序解耦及并行计算降低了计算规模,提高了计算速度和效率,节省了存储空间。最后,通过测试算例验证了该方法的正确性和有效性。
[Abstract]:In order to solve the problems of complicated transformer branch and heavy workload in distribution network, a new transformer branch processing method is proposed, which can be easily introduced into the three-phase power flow algorithm of distribution network. According to the phase shift relation of sequence state on both sides of transformer, this method establishes phase transformation matrix, simplifies the processing of transformer branch, and utilizes the decoupling compensation model of asymmetrical line and the characteristics of three-sequence decoupling in distribution network. Based on the circuit analysis method, the road matrix of each sequence network is generated, and the correlation formula between node sequence voltage and injection sequence current is established. Thus, the three-phase decoupling power flow calculation of unbalanced distribution network with multi-transformer branches is realized. The three-order decoupling and parallel computing in the algorithm reduce the scale of computation, improve the speed and efficiency of calculation, and save storage space. Finally, the correctness and validity of the method are verified by a test example.
【作者单位】：河海大学能源与电气学院;中国电力科学研究院(南京);
【基金】：国家自然科学基金资助项目(51277052,51107032,61104045) 国家电网公司科技项目“智能配用电的技术体系及仿真基础性问题研究” 江苏省普通高校研究生科研创新计划项目(CXZZ13_0238)~~
【分类号】：TM744

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