Voltage quality enhancement of distribution network based on unified power quality conditioner with BESS

被引：0

作者：

Mei, Yan ^{[1
]}

Xu, Jiangbo ^{[1
]}

Peng, Chen ^{[1
]}

Kong, Weikang ^{[1
]}

Peng, Gang ^{[1
]}

Song, Guangyu ^{[1
]}

机构：

[1] Electric Power Research Institute of State Grid Xizang Electric Power Co., Ltd., Lhasa

来源：

Frontiers in Energy Research | 2024年 / 12卷

关键词：

battery energy storage systems; distribution network; nonlinear disturbance observer; power quality; unified power quality conditioner;

D O I：

10.3389/fenrg.2024.1472503

中图分类号：

学科分类号：

摘要：

This article proposes a voltage compensation control strategy for the distribution network based on the unified power quality conditioner (UPQC) with battery energy storage systems (BESS) to achieve comprehensive management of the power quality and improve the system dynamic responses. Specifically, aiming at that amplitude and phase jump of the terminal voltage, a capacity configuration compensation scheme is proposed to achieve voltage vector compensation. The series converter is designed to compensate for the amplitude and phase of the load voltage. The parallel converter is designed to realize power compensation and ensure that the grid voltage and current are sinusoidal and in phase. A voltage control approach based on the nonlinear disturbance observer (NDO) is developed for BESS to stabilize the DC bus voltage and improve the anti-interference performance of the current. An NDO is designed to accomplish current disturbance tracking and provide disturbance feedforward compensation. Simulations validate that the proposed approach is effective and feasible. Copyright © 2024 Mei, Xu, Peng, Kong, Peng and Song.

引用

共 34 条

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