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With the integration of large-scale renewable power generation system and renewable power consumption system into the power grid, the power system has been evolved from traditional power system to the modern power system. The modern power system has significant “weak inertia” characteristics, which frequently leads to grid fault. When the grid fault occurs, the traditional control technologies are no longer applicable, which leads to the DC voltage instability and grid current distortion in the PV inverter. More seriously, these issues lead to fault protection, and even burn out the PV inverter equipment.

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Advanced Control Technology of Photovoltaic Inverters Under Grid Faults

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  • 出版模式：

    开放获取

  • 发表日期：

    2025年

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  • Chenghui Zhang

摘要

With the integration of large-scale renewable power generation system and renewable power consumption system into the power grid, the power system has been evolved from traditional power system to the modern power system. The modern power system has significant “weak inertia” characteristics, which frequently leads to grid fault. When the grid fault occurs, the traditional control technologies are no longer applicable, which leads to the DC voltage instability and grid current distortion in the PV inverter. More seriously, these issues lead to fault protection, and even burn out the PV inverter equipment.