期刊
ELECTRIC POWER SYSTEMS RESEARCH
卷 162, 期 -, 页码 169-182出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.epsr.2018.05.014
关键词
Hybrid AC/DC microgrid; Transient response; Virtual synchronous generator; Pre-synchronization
资金
- Chinese Scholarship Council - Griffith University Joint Funding Program
- Shanghai Scientific & Technology Innovation Action Plan International Science & Technology Cooperation Program [15220710500]
This paper presents a high-performance control strategy to support an optimised transient performance for a hybrid AC/DC microgrid system based on an improved virtual synchronous generator (VSG). The standard VSG is modified and an improved control strategy is developed. A pre-synchronization controller is embedded within the improved VSG controller for grid-connection use. In addition, this paper builds the small-signal model for the improved VSG controller in order to analyse the system's stability. A controller for the battery energy storage system is developed in order to assist the power output of the hybrid microgrid. The microgrid system is designed in a MATLAB/SIMULINK simulation environment based on the under-construction hybrid AC/DC microgrid system at Griffith University, Australia. A comparative study of droop control, conventional VSG control, and the improved VSG control is carried out under different possible transient cases. The pre-synchronization method is also tested. The simulation results show that the improved VSG control strategy is evidently able to ensure smooth variations in frequency, voltage and active power during transient cases.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据