基于智能选相开关的低压配电网台区负荷不平衡控制技术的研究  

Study on Unbalanced Load Control Technology at Low Voltage Distribution Network Area Based on Intelligent Phase Selection Switch

作　　者：韩俊玉[1] 高月春[2] 赵东元 马维青[1] 

机构地区：[1]国网山西省电力公司阳泉供电公司,山西阳泉045000 [2]装甲兵工程学院,北京100072 [3]国网智能电网研究院,北京100220

出　　处：《电力电容器与无功补偿》2016年第3期78-81,87,共5页Power Capacitor & Reactive Power Compensation

摘　　要：低压配电网三相负荷不平衡使线损增大并带来末端"低电压",因此治理三相负荷不平衡具有很重要的实际意义。本文开展了低压配电网台区负荷不平衡控制技术的研究。首先介绍了智能选相开关的工作原理及关键技术,其次,基于智能选相开关,进行了配电网台区负荷不平衡控制策略的研究。最后,研制了380 V的实际工程样机。试验证明,本技术可以解决低压配网台区三相负荷不平衡治理问题,具有成本低、可靠性高的优势,适于推广应用。The loss of line is increased and end terminal low voltage due to three-phase unbalance of low voltage distribution network. Therefore,control of unbalance of three-phase has very important and practical significance. In this paper, the study of load unbalance control technology at area of low voltage distribution network is developed. Firstly, the operating principle and key technology of intelligent phase selection switch is introduced. Then, the study of load unbalance control strategy at area of low voltage network based on intelligent phase election switch is performed. Finally,the actual 380 V sample is developed. It is proved by the test that this technology can solve the problem to control three-phase load unbalance at area of low voltage network, and has such advantage as low cost and high reliability and is suitable for the promotion and application.

关 键 词：三相负荷不平衡 智能选相开关 低压配电网 

分 类 号：TM727[电气工程—电力系统及自动化]