作　　者： (曹磊）; (王蕊）; (胡鹏飞）;

机构地区： 东南大学,江苏南京210096

出　　处： 《电器与能效管理技术》 2017年第16期44-51,56,共9页

摘　　要： 针对目前低压配电网三相负荷不平衡愈发严重的情况,分析了配电网三相负荷不平衡的危害。比较和总结了负荷补偿和负荷相序平衡两种解决方案的优缺点及存在问题。最后指出研究适用于居民用户负荷的低成本换相装置是未来解决低压配电网三相负荷不平衡问题的重要研究方向。通过分析,有助于找出一种经济、安全、有效的治理措施来提高供电质量。 For three-phase load imbalance is increasingly serious in low voltage distribution network,this paper summarizes the solution of three-phase load imbalance to find an economical,safe and effective control measure to improve the quality of power supply.First of all,this paper analyzed the harm of three-phase load imbalance.There are usually two solutions—load compensation and load phase sequence balance—to this problem.These two solutions were introduced and analyzed respectively,the advantages,disadvantages and existing problems of which were also compared and summarized.Finally,it pointed out that researching low cost commutation devices suitable for residential users is an important research direction for solving the three-phase load imbalance in low voltage distribution network in the future.

关 键 词： 低压配电网 三相负荷不平衡 负荷补偿 负荷相序平衡 换相装置