双馈风电机组多机并联运行的短路电流特征及其机理

OUYANG Jinxin

您当前的位置：

首页 >

文章列表页 >

双馈风电机组多机并联运行的短路电流特征及其机理

更新时间：2025-08-13

- 双馈风电机组多机并联运行的短路电流特征及其机理
- Automation of Electric Power Systems Vol. 40, Issue 3, Pages: 74-80(2016)
- 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,400030
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2016
- 稿件说明：
移动端阅览
OUYANG Jinxin. [J]. Automation of electric power systems, 2016, 40(3): 74-80.
DOI：

OUYANG Jinxin. [J]. Automation of electric power systems, 2016, 40(3): 74-80. DOI：

摘要

双馈感应发电机(DFIG)输出短路电流在组成、大小和衰减时间上与同步发电机区别较大

使得目前DFIG的故障暂态分析已成为风电并网研究的热点。然而

现有研究多以DFIG的单机并网系统为对象

由于风电场、风电机群集电系统的网络化特征

单个DFIG的暂态特性并不足以表征大量机组共同作用的整体性特征。对多个DFIG并联运行时短路电流较单机并网运行时的区别及其产生机理进行研究。基于三相电路空间矢量的基尔霍夫定律和元件特性方程的分析

通过推导DFIG的短路暂态过程

构建了DFIG单机和多机并联运行时工频、直流和转速频率分量的矢量等效电路

进而推导了DFIG短路电流及其相关性的解析式

分析了DFIG多机并联运行下短路电流的变异规律

并通过仿真验证了理论分析的正确性。

Abstract

The composition

magnitude and damping time of short-circuit current(SCC)contributed by doubly-fed induction generator(DFIG)is very different from those of synchronous generator. The transient analysis of DFIG thus becomes a focus of research. However

the existing studies aim at a single DFIG. Because the internal system of wind farm has the networked characteristic

the characteristics of a single DFIG cannot cover the overall features caused by a large amount of turbines. This study focuses on the difference of SCC contributed by paralleled DFIGs and a single DFIG. The Kirchhoff law and characteristic equation of circuit component of the space vectors are firstly analyzed. The fundamental frequency

direct-current and speed-frequency vector circuits of DFIG operated alone and with other DFIGs are constructed through deducing the transient process of DFIG under the grid fault. Then the analytic expressions of the SCC and its correlation are proposed

and the variation pattern of the SCC contributed by DFIG under parallel operation is obtained. The effectiveness of the theoretical analysis is proved by simulations. This work is supported by National Natural Science Foundation of China(No. 51407017)and Fundamental Research Funds for the Central Universities(No. 106112015CDJXY150001

No. 106112015CDJZR155516).

关键词

Keywords

references

Views

2629

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Transient Control Method for Grid-forming Direct-drive Wind Turbine Unit Based on DC Voltage Synchronization

Optimal Dynamic Response Strategy for Supercapacitor Participating in Wind Power Frequency Regulation

Review on Research of Modeling and Simulation for Wind Power Generation in Power System

Practical Calculation Method for Fault Steady-state Current in Inverter-interfaced Generator Stations

Dynamic Estimation of Primary Frequency Regulation Capability of Doubly-fed Wind Turbines Using Rotor Kinetic Energy

Related Author

DENG Zhenyan

WANG Han

ZHOU Shaoze

CAO Yunfeng

Wang Wei

CAI Xu

LI Jinghua

AO Guojin

Related Institution

Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education (Shanghai Jiao Tong University)

State Grid Electric Power Research Institute (NARI Group Corporation)

Key Laboratory of Guangxi Electric Power System Optimization and Energy-saving Technologys (Guangxi University)

School of Electrical and Power Engineering, Hohai University

China Electric Power Research Institute

⁰