Optimized damping for LCL filters in three-phase voltage source inverters coupled by power grid
作者: Meng HuangJianjun SunYu PengXiaoming Zha
作者单位: 1Wuhan University
2Wuhan Electric Power Technical College
刊名: Journal of Modern Power Systems and Clean Energy, 2017, Vol.5 (4), pp.642-651
来源数据库: Springer Journal
DOI: 10.1007/s40565-017-0298-8
关键词: LCL filterThree-phase voltage source inverterNon-ideal power gridOptimized designInteracting converters
英文摘要: The application of LCL filters has become popular for inverters connected to the power grid due to their advantages in harmonic current reductions. However, the power grid in a distribution system is non-ideal, presenting itself as a voltage source with significant impedance. This means that an inverter using an LCL filter may interact with other grid-connected inverters via the non-ideal grid. In this paper, damping optimization of LCL filters to reduce this interaction is studied for a three-phase voltage source inverter (VSI). Simulation results show that resonant oscillation occurs in a distributed power grid, even if the VSI with an LCL filter is well designed for standalone applications. A small-signal analysis is performed to predict this stability problem and to locate the...
原始语种摘要: The application of LCL filters has become popular for inverters connected to the power grid due to their advantages in harmonic current reductions. However, the power grid in a distribution system is non-ideal, presenting itself as a voltage source with significant impedance. This means that an inverter using an LCL filter may interact with other grid-connected inverters via the non-ideal grid. In this paper, damping optimization of LCL filters to reduce this interaction is studied for a three-phase voltage source inverter (VSI). Simulation results show that resonant oscillation occurs in a distributed power grid, even if the VSI with an LCL filter is well designed for standalone applications. A small-signal analysis is performed to predict this stability problem and to locate the...
全文获取路径: Springer  (合作)
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关键词翻译
关键词翻译
  • voltage 电压
  • inverter 倒相器
  • coupled 耦合
  • power 功率
  • phase 相位
  • source 
  • impedance 阻抗
  • VSI Virtual Storage Interrupt
  • filter 过滤机
  • ideal 理想