Research on Power Quality Control Method Considering Distributed Photovoltaic Grid Connection

HU Weifeng; ZHOU Yu; ZHOU Hongyi; SHI Hongbing; LI Zhengjia

doi:10.14044/j.1674-1757.pcrpc.2021.05.037

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Research on Power Quality Control Method Considering Distributed Photovoltaic Grid Connection

更新时间：2024-09-14

- Research on Power Quality Control Method Considering Distributed Photovoltaic Grid Connection
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 42, Issue 5, Pages: 245-250(2021)
- 作者机构：
  
  1. 国网江苏省电力有限公司盐城供电分公司
  2. 苏州华天国科电力科技有限公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2021.05.037
  CLC： TM615;TM711
- Published：2021，
- 稿件说明：
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HU WEIFENG, ZHOU YU, ZHOU HONGYI, et al. Research on Power Quality Control Method Considering Distributed Photovoltaic Grid Connection. [J]. Power capacitor & reactive power compensation, 2021, 42(5): 245-250.
DOI：

HU WEIFENG, ZHOU YU, ZHOU HONGYI, et al. Research on Power Quality Control Method Considering Distributed Photovoltaic Grid Connection. [J]. Power capacitor & reactive power compensation, 2021, 42(5): 245-250. DOI： 10.14044/j.1674-1757.pcrpc.2021.05.037.

摘要

随着大量的分布式光伏系统并入配电系统中

导致系统出现电压偏差、三相不平衡等电能质量的问题。基于此

本文提出了一种在不影响正常光伏发电情况下

也具有治理电能质量的方法

此方法充分利用逆变器的剩余容量来实现电能质量综合治理。本文首先分析了电能质量综合治理中谐波检测、不平衡分量检测的算法

其次研究了指令合成及电流跟踪控制算法

最后通过仿真验证本文方法的有效性

仿真结果表明

本文提出的方法具有较好的实用性。

Abstract

In view of such power quality problems as voltage deviations and three-phase imbalances in the system due to the integration of a large number of distributed photovoltaic systems into the power distribution system

in this paper

a kind of method that can also manage the power quality without affecting the normal photovoltaic power generation is proposed. This method makes full use of the remaining capacity of the inverter to achieve comprehensive management of power quality. The algorithms of harmonic detection and imbalanced component detection in comprehensive power quality management is analyzed firstly. Then the command synthesis and current tracking control algorithms are studied. Finally

the effectiveness of the method is verified by simulation. The simulation results show that the method proposed in this paper has fairly good practicability.

关键词

光伏逆变器谐波无功指令不平衡分量

Keywords

photovoltaic inverterharmonicreactive power commandunbalanced component

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