...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISA Transactions >Design and implementation of a virtual capacitor based DC current suppression method for grid-connected inverters
【24h】

Design and implementation of a virtual capacitor based DC current suppression method for grid-connected inverters

机译：基于虚拟电容器DC电流抑制方法的网格连接逆变器的设计与实现

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Integration of renewable energy (RE) sources, such as wind energy and photo voltaic (PV) energy, to a power network (grid) is usually achieved through an intermediate power electronic inverter. Ideally, the inverter is not expected to inject any form of DC component into the grid. However, this is not the case in practice as DC component are invariably generated and, subsequently, injected into the grid by the power converter, impacting on the overall power quality. To mitigate this problem, the International Grid Certification stipulates the maximum extent of DC component that can be injected into the grid current. Thus, various techniques have been proposed to maintain the DC component within the stipulated limit, however these techniques have the drawbacks of complicated control algorithm, extra power losses, and increased high costs. To solve these problems, this paper proposes a virtual-capacitor based DC current suppression control technique for grid-connected inverters, which has the advantages of fast implementation and good DC component suppression performance in utility. An LCL filter interfaced 3-phase inverter is used and virtual capacitors are incorporated into the inverter which connects the inverter with the grid. The allowable region and design methods of the inverter controller parameters which are combined with the active damping and grid voltage feedforward strategies are described in detail. Furthermore, both simulation and experimental results show that the DC component can be successfully mitigated and could satisfy the International Grid Certification standards. (C) 2019 ISA. Published by Elsevier Ltd. All rights reserved.
机译：通常通过中间电力电子逆变器实现可再生能源（RE）源（例如风能和光伏电视（PV）能量）的可再生能源（RE）源。理想情况下，逆变器预计不会将任何形式的DC分量注入到网格中。然而，在实践中不是这种情况，因为直流分量总是产生，随后通过电力转换器注入电网，影响整体功率质量。为缓解此问题，国际网格认证规定了可以注入电网电流的直流组件的最大程度。因此，已经提出了各种技术来维持在规定的极限内的DC分量，但是这些技术具有复杂的控制算法，额外功率损耗的缺点，并且提高了高成本。为了解决这些问题，本文提出了一种基于虚拟电容的电流电流抑制控制技术，用于网格连接的逆变器，其在实用程序中具有快速实现和良好的DC分量抑制性能的优点。使用LCL滤波器接口的3相逆变器，并且虚拟电容器融入逆变器中，将逆变器连接到栅格。详细描述了与主动阻尼和电网电压前馈策略组合的逆变器控制器参数的允许区域和设计方法。此外，仿真和实验结果都表明，DC组件可以成功减轻，可以满足国际网格认证标准。 （c）2019 ISA。 elsevier有限公司出版。保留所有权利。

著录项

  • 来源
    《ISA Transactions》 |2019年第2019期|共16页
  • 作者

    Long Bo; Wang Wei; Huang Lijun; Chen Yong; Li FuSheng; Sun HongBin; Li Hui;

  • 作者单位

    Univ Elect Sci &

    Technol China Sch Mech &

    Elect Engn Inst Elect Vehicle Driving Syst &

    Safety Technol Chengdu Sichuan Peoples R China;

    Univ Elect Sci &

    Technol China Sch Automat Inst Elect Vehicle Driving Syst &

    Safety Technol Chengdu Sichuan Peoples R China;

    Univ Elect Sci &

    Technol China Sch Mech &

    Elect Engn Inst Elect Vehicle Driving Syst &

    Safety Technol Chengdu Sichuan Peoples R China;

    Univ Elect Sci &

    Technol China Sch Mech &

    Elect Engn Inst Elect Vehicle Driving Syst &

    Safety Technol Chengdu Sichuan Peoples R China;

    Univ Elect Sci &

    Technol China Sch Automat Inst Elect Vehicle Driving Syst &

    Safety Technol Chengdu Sichuan Peoples R China;

    Tsinghua Univ Sch Elect Engn Beijing Peoples R China;

    Chongqing Univ Sch Elect Engn Chongqing Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;工业自动化仪表;
  • 关键词

    Grid-connected inverter; DC component suppression; Controller design; Virtual capacitor;

    机译：网格连接逆变器;直流分量抑制;控制器设计;虚拟电容器;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号