Small-Signal Stability Support From Dynamically Configurable Grid-Forming/Following Inverters for Distribution Systems

被引：2

作者：

Ding, Lizhi ^{[1
]}

Du, Yuhua ^{[1
]}

Lu, Xiaonan ^{[1
]}

Dong, Shuan ^{[2
]}

Hoke, Andy ^{[3
]}

Tan, Jin ^{[2
]}

机构：

[1] Temple Univ, Coll Engn, Philadelphia, PA USA

[2] Natl Renewable Energy Lab, Grid Planning & Anal Ctr, Golden, CO USA

[3] Natl Renewable Energy Lab, Power Syst Engn Ctr, Golden, CO USA

来源：

2022 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2022年

关键词：

grid-following control; grid-forming control; operation mode transition; small-signal stability analysis; ENERGY-STORAGE; VOLTAGE;

D O I：

10.1109/ECCE50734.2022.9948119

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 growth of inverter-based resources (IBRs) in modern power systems can challenge system stability since they do not natively provide inertia, prompting a need to develop new methods to address the potential instabilities. In this paper, a dynamically configurable grid-forming (GFM) and grid-following (GFL) control is proposed, which enables inverters to flexibly transition to support system needs. The operation mode transition between GFM and GFL controls is adopted as an additional degree of control flexibility to adjust the small-signal stability margin. In addition, a holistic and detailed small-signal model for a distribution feeder that captures the dynamics from both synchronous generators (SGs) and IBRs is also derived and used to evaluate the effectiveness of the proposed GFM/GFL controls to augment the system small-signal stability margin. Case studies with varying levels of IBRs were implemented in MATLAB/Simulink to demonstrate the effectiveness of the proposed approach.

引用

页数：7