计及低电压穿越的双馈感应发电机三相短路运算曲面法

WANG Qianggang

您当前的位置：

首页 >

文章列表页 >

计及低电压穿越的双馈感应发电机三相短路运算曲面法

更新时间：2025-08-13

- 计及低电压穿越的双馈感应发电机三相短路运算曲面法
- Automation of Electric Power Systems Vol. 39, Issue 18, Pages: 49-54(2015)
- 作者机构：
  
  输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市,400044
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015
- 稿件说明：
移动端阅览
WANG Qianggang. [J]. Automation of electric power systems, 2015, 39(18): 49-54.
DOI：

WANG Qianggang. [J]. Automation of electric power systems, 2015, 39(18): 49-54. DOI：

摘要

分析了常规电源对双馈感应发电机(DFIG)的电压支撑作用

将DFIG接入点以外的系统进行戴维南等值

利用DFIG短路电流周期分量与计算电抗、开路电压的关系曲面

提出了DFIG接入电网的短路电流运算曲面法。针对撬棒投入和未投入时DFIG的暂态特性差异

以转子电流峰值为撬棒投入的判据

分析撬棒动作与故障后DFIG端电压关系;考虑转子励磁控制和撬棒动作延时

推导了DFIG三相短路电流计算式;制定不同时刻DFIG三相短路电流与计算电抗、开路电压运算曲面

给出计及低电压穿越的DFIG短路运算曲面法计算步骤

通过仿真验证该方法的正确性。

Abstract

The voltage support from conventional energy sources to doubly-fed induction generators (DFIGs) is analyzed by making the systems outside the coupling point of DFIG Thevenin equivalent. A short circuit calculating method based on pre-computed surface is proposed by developing the surface of short circuit current varying with the calculated reactance and the open circuit voltage. Moreover

for the transient feature differences of DFIG during the crowbar activation and deactivation

the rotor current peak is used to judge the activation

the relation between crowbar activation and post-fault terminal voltage is investigated. And the short circuit currents are derived by taking into account the rotor excitation and crowbar activation time delay. Finally

the pre-computed surfaces of short circuit current at different times are established

and the procedure for DFIG short circuit calculation is designed. The correctness of proposed method is verified by simulation. This work is supported by National Natural Science Foundation of China (No. 51277184) and National High Technology Research and Development Program of China (863 Program) (No. 2011AA05A107).

关键词

Keywords

references

Views

2203

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

基于Crowbar保护的双馈感应发电机暂态特性与参数设计

DC-link Dynamics Analysis and Optimal Control Strategy for Grid-forming DFIG-based Wind Turbines in Weak Grid

Equivalent Method of DFIG-based Wind Farm Considering Low Voltage Ride-through and Dynamics of Entire Fault Process

Refined Fault Calculation Model of Doubly-fed Induction Generator Considering Different Voltage Drops and Grid-side Converter Feed-out Current

Related Author

XIONG Wei

ZHANG Xing

XU Shang

XIE Zhen

LI Mengjie

ZHOU Haiqiang

CUI Xiaodan

XU Jianbing

Related Institution

State Key Laboratory of Advanced Electromagnetic Engineering and Technology, (Huazhong University of Science and Technology)

School of Electrical Engineering and Automation, Hefei University of Technology

School of Electrical and Power Engineering, Hohai University

NARI Group Corporation(State Grid Electric Power Research Institute)

State Grid Shanghai Municipal Electric Power Company

⁰