A Droop Control Strategy Based on Synchronous Rectifier to Modulate the Frequency and Voltage in AC Microgrid

被引：3
|
作者：
Xu, Jian [1 ]
Cao, Xin [1 ]
Hao, Zhenyang [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, Nanjing, Peoples R China
来源：
2019 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2019) | 2019年
基金：
中国国家自然科学基金;
关键词：
AC microgrid; synchronous rectifier; frequency droop control; voltage droop control; SYNCHRONVERTERS INVERTERS;
D O I：
10.1109/icems.2019.8921702
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：
In this paper, we propose a droop control strategy based on synchronous rectifier to improve the voltage quality for AC microgrid. First of all, the virtual synchronous machine (VSM) technology is applied to three-phase PWM rectifier, which makes three-phase PWM rectifier possess the similar damping characteristic and droop mechanism as synchronous machine. Secondly, combined with the droop characteristics of synchronous machine, we design frequency droop control and voltage droop control strategies to respectively suppress the frequency and voltage fluctuation of AC bus caused by change of load in AC microgrid. The proposed control strategies are verified by simulation results in MATLAB/Simulink.
引用
收藏
页码：587 / 591
页数：5
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