Compensating Network Dynamics in Grid-Forming Control

被引:0
作者
Gross, Dominic [1 ]
机构
[1] Univ Wisconsin Madison, Dept Elect & Comp Engn, Madison, WI 53706 USA
来源
2022 58TH ANNUAL ALLERTON CONFERENCE ON COMMUNICATION, CONTROL, AND COMPUTING (ALLERTON) | 2022年
关键词
POWER CONVERTERS; FREQUENCY STABILITY; INVERTERS; SYNCHRONIZATION; IMPLEMENTATION;
D O I
10.1109/ALLERTON49937.2022.9929370
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The circuit dynamics of power networks are typically neglected in transient stability analysis of power systems. While this approximation is justified in classical multi-machine power systems, the circuit dynamics can compromise stability of power systems dominated by grid-forming (GFM) power converters. In this work, we show that the impact of circuit dynamics can be mitigated by (i) augmenting GFM droop control with derivative feedback, and (ii) leveraging derivative control terms of dual-port GFM control that was recently proposed in the literature. Moreover, we show that, contrary to conventional wisdom, avoiding instability by slowing down the converter dynamics (e.g., through virtual inertia) is not always possible or may require unrealistic virtual inertia constants.
引用
收藏
页数:8
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