Improved Voltage Sag Source Location Method Considering PV LVRT

WANG Cheng; JIA Dexiang; LYU Ganyun; SHI Xiang; LIU Haitao; ZHANG Xinyin

doi:10.14044/j.1674-1757.pcrpc.2021.02.020

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Improved Voltage Sag Source Location Method Considering PV LVRT

更新时间：2024-09-14

- Improved Voltage Sag Source Location Method Considering PV LVRT
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 42, Issue 2, Pages: 117-121(2021)
- 作者机构：
  
  1. 国网能源研究院有限公司
  2. 南京工程学院电力工程学院
  3. 国网青岛供电公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2021.02.020
  CLC： TM615;TM714.2
- Published：2021，
- 稿件说明：
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[1]王程,贾德香,吕干云,时翔,刘海涛,章心因.计及光伏LVRT的改进电压暂降源定位方法[J].电力电容器与无功补偿,2021,42(02):117-121+130.

WANG CHENG, JIA DEXIANG, LYU GANYUN, et al. Improved Voltage Sag Source Location Method Considering PV LVRT. [J]. Power capacitor & reactive power compensation, 2021, 42(2): 117-121.
[1]王程,贾德香,吕干云,时翔,刘海涛,章心因.计及光伏LVRT的改进电压暂降源定位方法[J].电力电容器与无功补偿,2021,42(02):117-121+130. DOI： 10.14044/j.1674-1757.pcrpc.2021.02.020.

WANG CHENG, JIA DEXIANG, LYU GANYUN, et al. Improved Voltage Sag Source Location Method Considering PV LVRT. [J]. Power capacitor & reactive power compensation, 2021, 42(2): 117-121. DOI： 10.14044/j.1674-1757.pcrpc.2021.02.020.

摘要

电压暂降是发生频次多、影响最为严重的电能质量问题

其扰动源定位对解决电压暂降导致的供用电双方经济纠纷等起到重要作用。针对光伏电源低电压穿越时的电流和阻抗特性

本文提出了改进的距离阻抗继电器暂降源定位法

给出修正判据

改善含DG复杂配电网的电压暂降源定位可靠性。仿真实验结果表明

该修正定位方法能更可靠地定位出含光伏配电网的电压暂降源方位。

Abstract

The voltage sag is the power quality problem with most frequent occurrence and the most serious influence and location of its disturbance source plays an important role in solving the disputes between the power supply and the power consumption. In view of current and impedance characteristics of PV power in low voltage ride through（LVRT）

the sag source location method of modified distance impedance relay method is proposed

the correction criterion is given in this paper and the reliability of source location of voltage sags in complex distribution network containing DG is improved. It is shown by the simulation and experimental result that the modified location method can locate more reliably the voltage sag in power distribution grid containing PV.

关键词

电压暂降源定位低电压穿越分布电源判据

Keywords

voltage sagsource locationlow voltage ride throughDGcriterion

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