Application of The Virtual Torque Coefficient in Stability Mechanism Analysis of Grid-Forming VSC

被引：0

作者：

Liu, Ni ^{[1
]}

Wang, Hong ^{[1
]}

Xiang, Haoxi ^{[1
]}

Shi, HeXi ^{[1
]}

Yuan, Yingying ^{[1
]}

Chen, Zhe ^{[2
]}

机构：

[1] Harbin Inst Technol, Sch Mech Engn & Automat, Shenzhen, Peoples R China

[2] Aalborg Univ, Dept Energy Technol, Aalborg, Denmark

来源：

2022 IEEE 13TH INTERNATIONAL SYMPOSIUM ON POWER ELECTRONICS FOR DISTRIBUTED GENERATION SYSTEMS (PEDG) | 2022年

关键词：

Grid forming converter; power coupling; torque analysis; stability analysis; voltage source converter;

D O I：

10.1109/PEDG54999.2022.9923201

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The grid forming technology is an attractive scheme for voltage source converter integrated into the power system. However, there is a risk of oscillation in the GFM-VSI gridconnected systems, and the interaction mechanism among controllers is not intuitively demonstrated. This paper defines the virtual torque coefficient of the GFM-VSI with the reactive power-voltage controller. And there are detailed discussions about the relationship between it and the system stability. The proposed virtual torque coefficient can reflect the incidence of the controller interaction on the system stability. The conclusions are validated in the two GFM-VSI parallel experiment platforms and single inverter grid-connected simulation system, and the impact of the reactive power-voltage controller on stability under different work conditions has been discussed.

引用

页数：6

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