The control strategy of single-phase two-stage grid-connected PV (PhotoVoltaic) generation system is studied and improved.

研究并改进了单相两级光伏并网发电系统的控制策略。

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Electricity from sunlight is truly "green" and inexpensive but requires an energy conversion system with photovoltaic (PV) cells and a storage unit, such as a battery.

来自于日光的电能是真正“绿色”和廉价的能源，但是需要基于光伏(PV)电池和存储设备(例如电池)的能量转换系统。

youdao

Electricity from sunlight is truly "green" and inexpensive but requires an energy conversion system with photovoltaic (PV) cells and a storage unit, such as a battery.

来自于日光的电能是真正“绿色”和廉价的能源，但是需要基于光伏(PV)电池和存储设备(例如电池)的能量转换系统。

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