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首页> 外文期刊>Electric power systems research >A hybrid AC/DC microgrid control system based on a virtual synchronous generator for smooth transient performances
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A hybrid AC/DC microgrid control system based on a virtual synchronous generator for smooth transient performances

机译：基于虚拟同步发电机的交流/直流混合微电网控制系统，可实现平稳的暂态性能

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摘要

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.
机译：本文提出了一种高性能控制策略，可为基于改进型虚拟同步发电机（VSG）的AC / DC混合微电网系统提供优化的暂态性能。修改了标准VSG，并开发了改进的控制策略。在改进的VSG控制器中嵌入了预同步控制器，供电网连接使用。此外，本文还为改进的VSG控制器建立了小信号模型，以分析系统的稳定性。为了辅助混合微电网的功率输出，开发了用于电池能量存储系统的控制器。该微电网系统是在MATLAB / SIMULINK仿真环境中设计的，该环境基于澳大利亚格里菲斯大学正在建设中的混合AC / DC微电网系统。在不同的可能瞬态情况下，进行了下垂控制，常规VSG控制和改进的VSG控制的比较研究。还测试了预同步方法。仿真结果表明，改进的VSG控制策略显然能够确保瞬态情况下频率，电压和有功功率的平稳变化。

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  • 来源
    《Electric power systems research》 |2018年第9期|169-182|共14页
  • 作者

    Liu Jiannan; Hossain M. J.; Lu Junwei; Rafi F. H. M.; Li Hui;

  • 作者单位

    Griffith Univ, Queensland Micro & Nano Technol Ctr, Griffith Sch Engn, Brisbane, Qld 4111, Australia;

    Macquarie Univ, Dept Engn, Sydney, NSW 2109, Australia;

    Griffith Univ, Queensland Micro & Nano Technol Ctr, Griffith Sch Engn, Brisbane, Qld 4111, Australia;

    Griffith Univ, Queensland Micro & Nano Technol Ctr, Griffith Sch Engn, Brisbane, Qld 4111, Australia;

    Shanghai Univ Elect Power, Coll Automat Engn, Shanghai Engn Res Ctr Intelligent Management & Co, Shanghai 200090, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hybrid AC/DC microgrid; Transient response; Virtual synchronous generator; Pre-synchronization;

    机译：交流/直流混合微电网;瞬态响应;虚拟同步发电机;预同步;

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