Coordinated control for improving the HVRT capability of a DFIG wind farm using a synchronous condenser

被引：0

作者：

Zhan J. ^{[1
]}

Chen B. ^{[2
]}

Xiong Y. ^{[1
]}

Cheng S. ^{[2
]}

Yao W. ^{[1
]}

Tao X. ^{[2
]}

Wen J. ^{[1
]}

机构：

[1] School of Electric and Electronic Engineering, Huazhong University of Science and Technology, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Wuhan

[2] State Grid Jiangxi Electric Power Research Institute, Nanchang

来源：

Yao, Wei (w.yao@hust.edu.cn) | 2020年 / Power System Protection and Control Press卷 / 48期

基金：

中国国家自然科学基金;

关键词：

Coordinated control; DFIG; HVDC; HVRT; Synchronous condenser;

D O I：

10.19783/j.cnki.pspc.191375

中图分类号：

学科分类号：

摘要：

This paper proposes a coordinated reactive power control strategy using a synchronous condenser to improve the High-Voltage Ride-Through (HVRT) ability of a Doubly-Fed Induction Generators (DFIG) wind farm and thus avoids tripping off of wind turbines. Because of its dynamic reactive power support and strong short-time overload capacity, the large capacity synchronous condenser has now been widely deployed in HVDC systems. However, the reactive power support of a synchronous condenser lags because of its response time limit when the grid fails. Based on the reactive power characteristics of a DFIG and synchronous condensers, a coordinated reactive power control strategy is proposed to optimize the reactive power flow during grid voltage swell. With the synchronous condenser deployed, the DFIG wind farm is controlled to participate in reactive power compensation during fault transients. The wind farm stops reactive power compensation during the steady-state period after a fault, so that the wind farm can enter normal operation more quickly after fault recovery. The simulation results in the case of DC-link block, small reactive power disturbance and continuous commutation failure show that the proposed strategy can effectively reduce the peak terminal voltage of wind turbines and accelerate system voltage recovery. © 2020, Power System Protection and Control Press. All right reserved.

引用

页码：59 / 68

页数：9

共 29 条

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