LOW VOLTAGE APPARATUS ›› 2021, Vol. 0 ›› Issue (5): 30-36.doi: 10.16628/j.cnki.2095-8188.2021.05.006

• Electrical Design & Discussion • Previous Articles     Next Articles

Design of Intelligent Commutation Switch Based on Parallel-Series Connection

ZHANG Jianbin1,2, XU Zhihong1,2   

  1. 1. College of Electrical Engineering and Automation,Fuzhou University, Fuzhou 350108, China
    2. Key Laboratory of New Energy Power Generation and Transformation,Fuzhou University, Fuzhou 350108, China
  • Received:2021-01-14 Online:2021-05-30 Published:2021-06-15

Abstract:

An intelligent phase changer which can switch phase sequence in real time under load is designed to alleviate the imbalance of three-phase in low voltage distribution network.The device can sample the power network signal in real time and realize phase sequence transformation in short time by controlling the mixed switch composed of thyristor and relay.The cloud platform of intelligent three-phase imbalance management system is developed on the server side,and the phase information,electrical parameters and commutation instructions,etc.are exchanged between general packet radio service (GPRS) and intelligent commutation switch.The network of multiple commutation switches in the cloud platform can form a set of regulation system to improve the ability to control the three-phase imbalance.

Key words: three-phase unbalance, mixed switch, intelligent commutator switch, GPRS

CLC Number: