孤岛模式下辐射配电网改进潮流算法  

The radiation distribution network improvement trend algorithm in the island mode

作　　者：马永翔[1] 韩迪 MA Yong-xiang;HAN Di(Shaanxi University of Technology,Hanzhong 723000,Shaanxi Province,China;State Grid Weinan Power Supply Company,Weinan 714000,Shaanxi Province,China)

机构地区：[1]陕西理工大学,陕西汉中723000 [2]国网渭南供电公司,陕西渭南714000

出　　处：《信息技术》2020年第5期125-130,共6页Information Technology

摘　　要：同相逆并联结构常应用在大功率电解中,其负荷特性决定了生产成本对电费波动较为敏感,自建发电机组可以有效实现成本控制。然而同相逆并联的复杂拓扑结构应用在独立配电网时会增加电力系统的复杂性,改变电网的谐波潮流分布,使系统面临电压越线的风险。针对传统前推回推法处理辐射网潮流时出现不收敛情况,基于回路分析法,并与前推回推法进行结合,提出一种同相逆并联结构整流器孤岛模式下辐射配电网改进潮流算法。通过分解支路电流,对辐射网分裂点电流进行补偿,改变其不收敛现象,并且通过MATLAB进行数据仿真,验证了此算法的有效性和精确性。Contra-parallel is the common structure in rectifier devices,which is used in high power electrolysis industry.The rectifier devices must provide high quality DC current to ensure the stability of pocess parameters and product quality in such production activities.Once the accidents occur in rectifier device,they will bring enormous economic loss and casualties.In view of the non-convergence of the traditional forward and backward generation power flow algorithm,based on the loop analysis method and combined with the forward pushback method,an improved power flow algorithm for a radiant distribution network under the island mode of the in-phase reverse parallel structure rectifier is proposed.By decomposing branch currents,the current at the splitting point of the radiation network is compensated,and the non-convergence phenomenon is changed.The data is simulated by MATLAB,and the effectiveness and accuracy of the algorithm are verified.

关 键 词：同相逆并联 孤岛模式 回路分析法 前推回推法 

分 类 号：TM74[电气工程—电力系统及自动化]