配电网合环电流计算研究与校核  

Research and Checking of Closed Loop Current Calculation of Distribution Network

作　　者：金鑫[1,2] 黄维芳[1,2] 牟敏[1] 袁玲[3] 徐骏[3] 

机构地区：[1]中国南方电网电力调度控制中心,广东广州510623 [2]南方电网科学研究院,广东广州510062 [3]北京四方继保自动化股份有限公司,北京100085

出　　处：《电器与能效管理技术》2017年第11期59-63,共5页Electrical & Energy Management Technology

摘　　要：我国配电网的运行模式通常采用的是闭环设计、开环运行。当运行方式发生改变时,则可能需要进行合环来保证供电的连续性。配电网的合环操作逐渐成为实现配电自动化,提升供电可靠重点考虑的问题。结合了国内外合环电流计算的研究成果以及方法,在此基础上在VC++系统平台上设计开发了配电网合环计算分析系统,其中包括合环点两侧主电网与配电网阻抗值计算,合环稳态电流的计算以及冲击电流计算,并将其电流结果与Digslint中仿真结果进行对比。试验结果表明,该系统能很好地计算合环过程中稳态电流以及冲击电流,更好地推进配电网主站其他相关的工作。The mode of the distribution network has formed closed-loop structure in China. When the operation mode is changed, it is possibly to need closed loop operation to ensure the continuity of power supply. So loop closing operation gradually becomes a key consideration to realize the automation and improve power supply reliability. This paper introduced the loop closing current calculation research results and methods. On this basis,in the Microsoft Visual C ＋ ＋ system platform it designed the closing loop calculation analysis system of distribution network. The system possesses the impedance calculation, closing loop current calculation and impact current calculation. The results show that the system can better calculate the steady-state current and impact current to better promote the related work.

关 键 词：配电网 继电保护 合环操作 电流计算 10 k V配电网 

分 类 号：TM744[电气工程—电力系统及自动化]