基于低压配网功率和用电量信息的三相不平衡负荷调整

郭兆成; 车建涛; 郭启栋; 万涛; 孙文

引用本文:	郭兆成,车建涛,郭启栋,等.基于低压配网功率和用电量信息的三相不平衡负荷调整[J].电力系统保护与控制,2018,46(21):86-95.
	GUO Zhaocheng,CHE Jiantao,GUO Qidong,et al.Adjustment of three-phase unbalanced load in distribution network based on its historical power data and power consumption[J].Power System Protection and Control,2018,46(21):86-95

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基于低压配网功率和用电量信息的三相不平衡负荷调整
郭兆成¹,车建涛¹,郭启栋¹,万涛²,孙文³
(1.国网大连供电公司，辽宁大连 116041;2.大连维深自动识别技术有限公司，辽宁大连 116023; 3.国网电力科学研究院，江苏南京 210000)

摘要:

传统的低压配网三相不平衡负荷在人工调整时，存在受瞬时检测电流波动影响大等问题。提出了一种基于台区历史功率数据和用户用电量信息的台区三相不平衡负荷调整方法，建立了不平衡负荷调整的数学模型。分析了在存在销户和新用户接入情况下的负荷调整模型修正问题。最后，对某一台区历史功率样本数据进行测试，结果表明应用该模型进行台区负荷调整可以有效降低配电台区的三相总体不平衡度。

关键词: 农网配电台区三相负荷不平衡度历史功率数据用户接入相序调整

DOI：10.7667/PSPC171589

分类号:

基金项目:国家自然科学基金项目(51577051);国家电网公司科技项目(SGJS0000YXJS1501044)

Adjustment of three-phase unbalanced load in distribution network based on its historical power data and power consumption

GUO Zhaocheng¹,CHE Jiantao¹,GUO Qidong¹,WAN Tao²,SUN Wen³

(1. State Grid Dalian Power Supply Company, Dalian 116041, China;2. Dalian Weishen Automatic Identification Technology Co., Ltd., Dalian 116023, China;3. State Grid Electric Power Research Institute, Nanjing 210000, China)

Abstract:

In the manual adjustment of the three-phase unbalanced load in distribution network, those factors, such as the fluctuation of the instantaneous detection current, and so on, would decrease the adjustment effect significantly. To address this problem, a method is proposed to adjust the unbalanced three-phase load in the distribution network based on its historical power data and each customer’s power consumption in this paper. In addition, the problems of customer reduction and new customer accessing are illustrated and the model updating method is elaborated. Finally, the model is tested by a certain distribution network historical samples data, and it is proved that the unbalance degree of the three-phase load of distribution station could be decreased significantly. This work is supported by National Natural Science Foundation of China (No.51577051) and Science and Technology Project of State Grid Corporation of China (No. SGJS0000YXJS1501044).

Key words: rural distribution network three-phase load unbalance degree historical power data adjustment of users’ accessing phase sequence

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