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首页> 外文期刊>Energy and power engineering >Virtual Synchronous Generator Based Current Synchronous Detection Scheme for a Virtual Inertia Emulation in SmartGrids
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Virtual Synchronous Generator Based Current Synchronous Detection Scheme for a Virtual Inertia Emulation in SmartGrids

机译：基于虚拟同步发电机的智能电网虚拟惯性仿真电流同步检测方案

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摘要

Renewable energy sources, such as photovoltaic wind turbines, and wave power converters, use power converters to connect to the grid which causes a loss in rotational inertia. The attempt to meet the increasing energy demand means that the interest for the integration of renewable energy sources in the existing power system is growing, but such integration poses challenges to the operating stability. Power converters play a major role in the evolution of power system towards SmartGrids, by regulating as virtual synchronous generators. The concept of virtual synchronous generators requires an energy storage system with power converters to emulate virtual inertia similar to the dynamics of traditional synchronous generators. In this paper, a dynamic droop control for the estimation of fundamental reference sources is implemented in the control loop of the converter, including active and reactive power components acting as a mechanical input to the virtual synchronous generator and the virtual excitation controller. An inertia coefficient and a droop coefficient are implemented in the control loop. The proposed controller uses a current synchronous detection scheme to emulate a virtual inertia from the virtual synchronous generators. In this study, a wave energy converter as the power source is used and a power management of virtual synchronous generators to control the frequency deviation and the terminal voltage is implemented. The dynamic control scheme based on a current synchronous detection scheme is presented in detail with a power management control. Finally, we carried out numerical simulations and verified the scheme through the experimental results in a microgrid structure.
机译：诸如光伏风力涡轮机和波浪能转换器之类的可再生能源使用功率转换器连接至电网，这会导致旋转惯性损失。满足不断增长的能源需求的尝试意味着，将可再生能源集成到现有电力系统中的兴趣正在增长，但是这种集成对运行稳定性提出了挑战。通过调节为虚拟同步发电机，电源转换器在电力系统向SmartGrid的演进中扮演着重要角色。虚拟同步发电机的概念需要一个具有功率转换器的储能系统，以模拟虚拟惯性，类似于传统同步发电机的动态特性。在本文中，在转换器的控制环路中实现了用于估计基本参考源的动态下降控制，包括有功和无功功率分量，作为虚拟同步发电机和虚拟励磁控制器的机械输入。在控制回路中实现惯性系数和下垂系数。所提出的控制器使用当前的同步检测方案来模拟来自虚拟同步发电机的虚拟惯性。在这项研究中，使用波能转换器作为电源，并实现了虚拟同步发电机的电源管理，以控制频率偏差和端电压。详细介绍了基于当前同步检测方案的动态控制方案以及电源管理控制。最后，我们进行了数值模拟，并通过在微网格结构​​中的实验结果验证了该方案。

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  • 来源
    《Energy and power engineering》 |2019年第3期|99-131|共33页
  • 作者

    Arvind Parwal; Martin Fregelius; Dalmo Cardosa Silva; Tatiana Potapenko; Johannes Hjalmarsson; James Kelly; Irina Temiz; Janaina Goncalves de Oliveira; Cecilia Bostroem; Mats Leijon;

  • 作者单位

    Division of Electricity, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden;

    Division of Electricity, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden;

    Department of Electrical Engineering, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil;

    Division of Electricity, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden;

    Division of Electricity, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden;

    MaREI-Centre for Marine and Renewable Energy Ireland, University College Cork, Cork, Ireland;

    Division of Electricity, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden;

    Division of Electricity, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden,Department of Electrical Engineering, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil;

    Division of Electricity, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden;

    Division of Electricity, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden,Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden;

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  • 正文语种 eng
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  • 关键词

    Current Synchronous Detection; Dynamic Droop Control; Energy Storage; Virtual Inertia; Virtual Synchronous Generator;

    机译：电流同步检测;动态下降控制储能;虚拟惯性虚拟同步发电机;

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