Small signal analysis of a grid-forming modular multilevel converter with a novel virtual synchronous generator control

被引：1
|
作者：
Jiang, Chen [1 ]
Sinkar, Ajinkya D. [1 ]
Gole, Aniruddha M. [1 ]
机构：
[1] Univ Manitoba, Dept Elect & Comp Engn, Winnipeg, MB R2T 5V6, Canada
来源：
ELECTRIC POWER SYSTEMS RESEARCH | 2023年 / 223卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Electromagnetic transients (EMT) simulation; Grid forming (GFM) converter; Modular multilevel converter (MMC); Small signal model; Virtual synchronous generator (VSG) control; CONNECTION; INVERTERS;
D O I：
10.1016/j.epsr.2023.109621
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper introduces a grid forming (GFM) control method - detailed synchronous machine emulation virtual synchronous generator (VSG). The proposed method makes a voltage source converter exactly emulate a synchronous generator (SG), using a current source interface. The precise emulation of an SG gives tighter control over overcurrent and improved transient damping. Electromagnetic Transients (EMT) simulation is used to demonstrate the operation, and small signal model is used to assess the stability performance. Small signal analysis shows that the resulting VSG operates stably, and oscillatory modes can be damped by appropriate optimization of the virtual damping windings resistances.
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页数：8
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