Three-Phase Power Quality Adjustment Device for Distribution Network Based on Phase Sequence Adaptive Technology

doi:10.16628/j.cnki.2095-8188.2021.03.012

Abstract

Abstract:

In order to solve the problem that the three-phase power quality adjustment device can not work normally due to the incorrect phase sequence of the grid voltage,a phase sequence adaptive method applied to the three-phase power quality adjustment device was proposed.This method starts with the control strategy of the three-phase power quality adjustment device,studies the influence of the different phase sequence on the control of the three-phase power quality adjustment device,and modifies the control strategy to successfully realize the phase sequence adaptive technology.The simulation and experiment verify the unbalance,reactive power,harmonic and inter-harmonic compensation functions of the device from the positive sequence and the negative sequence respectively,verifying the feasibility of the algorithm.

Key words: three-phase power quality adjustment device, phase sequence adaptive, distribution area, control strategy

CLC Number:

TM711

LI Xinyuan, MA Jun, GAO Peng, YU Haoran, LIN Yan, LÜ Haichao, SHEN Zhendong. Three-Phase Power Quality Adjustment Device for Distribution Network Based on Phase Sequence Adaptive Technology[J]. LOW VOLTAGE APPARATUS, 2021, 0(3): 61-67.

Figures/Tables 15

References 13

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第1相	第2相	第3相	相序
U	V	W	正序
V	W	U
W	U	V
V	U	W	负序
U	W	V
W	V	U