配电网电容电流超标问题研究

发布时间：2018-01-17 20:21

本文关键词：配电网电容电流超标问题研究　出处：《电力系统保护与控制》2017年21期 　论文类型：期刊论文

【摘要】：为了准确有效地解决当前配电网电容电流超标问题,针对10 k V不接地系统,提出一种分散固定和集中跟踪相结合的无功补偿方法。利用数据实例和数理统计方法分析了当前运行配电网电容电流与常规无功补偿的问题,并给出分散固定与集中跟踪解决方案。利用Matlab/Simulink对该方案进行仿真校验。仿真结果表明,分散固定补偿与集中跟踪补偿相结合的方法对治理10 k V不接地系统电容电流超标问题是有效和实用的。同时,该方案对规划设计中的变电站和10 k V开闭所在无功配置方面具有一定的指导意义。
[Abstract]:In order to solve the problem of capacitive current exceeding the current standard accurately and effectively, a 10kV ungrounded system is proposed. This paper presents a method of reactive power compensation based on decentralized fixation and centralized tracking. The problems of capacitive current compensation and conventional reactive power compensation in current distribution network are analyzed by using data examples and mathematical statistics. The solution of distributed fixation and centralized tracking is given. The simulation results show that the scheme is verified by Matlab/Simulink. The combination of decentralized fixed compensation and centralized tracking compensation is effective and practical to solve the problem of capacitive current exceeding the standard of 10 kV ungrounded system. This scheme has certain guiding significance for substation in planning and design and reactive power configuration of 10 kV on and off.
【作者单位】：河南省电力公司新乡供电公司;
【基金】：基金项目本文已申请专利(ZL 201610509284.6[P])
【分类号】：TM714.3;TM727
【正文快照】： 随着城区配电网电缆线路所占的比重越来越大,变电站电容电流也将越来越大[1]。由于消弧线圈增容不及时,部分变电站消弧线圈容量严重不足,给城市配电网的安全运行带来隐患。因此,准确地得出系统的电容电流,并根据此数据投入相应的消弧线圈以补偿系统的电容电流[2],是本文研究的

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