Coordinated Control Strategy for Short-circuit Faults of ±10 kV Photovoltaic DC Collection Lines

XING Dengjiang; LI Daoyang; WANG Xianwei; YANG Meijuan; AN Yu; XIN Defeng

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Coordinated Control Strategy for Short-circuit Faults of ±10 kV Photovoltaic DC Collection Lines

更新时间：2025-12-08

- Coordinated Control Strategy for Short-circuit Faults of ±10 kV Photovoltaic DC Collection Lines
- Vol. 46, Issue 11, Pages: 3847-3855(2020)
- 作者机构：
  
  1. 西安许继电力电子技术有限公司
  2. 许继电气股份有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 November 2020，
  
  Published：2020
- 稿件说明：
移动端阅览
XING Dengjiang, LI Daoyang, WANG Xianwei, et al. Coordinated Control Strategy for Short-circuit Faults of ±10 kV Photovoltaic DC Collection Lines[J]. 2020, 46(11): 3847-3855.
DOI：

XING Dengjiang, LI Daoyang, WANG Xianwei, et al. Coordinated Control Strategy for Short-circuit Faults of ±10 kV Photovoltaic DC Collection Lines[J]. 2020, 46(11): 3847-3855. DOI：

摘要

为实现±10 kV光伏直流接入线路极间短路故障发生后系统的快速稳定控制

避免不必要的停机操作

提出了基于故障过渡电阻判断的故障协调控制策略。首先

分析了故障过渡电阻对极间短路故障特性的影响

提取了故障电气量的变化特性;其次

利用故障清除前后电气量的变化特性

设计了故障时间分析方法

实现了故障暂时性和永久性的判断

并产生故障清除信号;接着

以不触发其他保护动作为原则

提出了暂时性故障的恢复方案

实现了系统恢复正常运行;最后

基于PSCAD/EMTDC搭建了±10kV光伏直流接入系统仿真模型

对故障协调控制策略进行了仿真验证。结果表明:提出的故障协调控制策略能够辨识暂时性故障

并在故障清除后实现系统的快速恢复

提升系统的可靠性。研究结果验证了所提故障协调控制策略的正确性。

Abstract

In order to control the ±10 kV photovoltaic DC collection system fast and stably after the pole-to-pole short-circuit fault occurs

and avoid unnecessary downtime operation

a coordinated control strategy based on judging fault resistance is proposed. The influence of fault resistance on the pole-to-pole short-fault characteristics is analyzed

and the variation characteristics of fault electric quantity are extracted. By using the change characteristics of electric quantity before and after fault being cleared

a fault time analysis method is designed to judge whether the fault is temporary or not

and to generate a signal of cleared faults. Based on the principle of not triggering protection methods action

the fault recovery scheme is proposed to realize the normal operation of the system. A model of ±10 kV photovoltaic DC collection system with the coordinated control strategy is built and simulated based on the PSCAD/EMTDC. The results show that the proposed fault coordination control strategy can identify the temporary fault and recover the system after the fault is removed

and it improves the reliability of the system. The research results verify the correctness of the proposed fault coordination control strategy.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Simulation of Cable Sheath Over-voltage in VSC-HVDC System

Fault Analysis and Protection Scheme for Converter AC Three-phase Grounding of Bipolar HVDC Systems

Gas Fault Characteristics Analysis and Diagnosis Method of Lithium-ion Battery

Coordinated Control Strategies to Enhance the Capability of Surplus Power Consumption for DC Grid

Regional AVC Coordinated Precise Control Based on High Proportion MCR

Related Author

SHANG Kangliang

HE Zhiyuan

ZHANG Yi

SUN Yi

LIU Baibing

LU Junchi

LIU Chong

FAN Boyang

Related Institution

School of Electrical and Electronic Engineering, North China Electric Power University

State Key Laboratory of Advanced Transmission Technology, Global Energy Interconnection Research Institute

Beijing Key Laboratory of DC Grid Technology and Simulation,Global Energy Interconnection Research Institute

Key Laboratory of Smart Grid, Tianjin University

College of Energy and Electrical Engineering, Hohai University

AI问答

⁰