Photovoltaic system

The invention discloses a photovoltaic system, and belongs to the technical field of photovoltaic power generation. The photovoltaic system comprises a plurality of photovoltaic module rows, a plurality of photovoltaic modules of each photovoltaic module row are distributed along a first direction, and the plurality of photovoltaic module rows are arranged at intervals along a second direction; the first rails and the photovoltaic module rows are arranged side by side, and the first rails extend in the first direction; the second rail extends in the second direction, the straight line where one of the second rail and the first rail is located intersects with the other rail, and the cleaning device is suitable for moving between the first rail and the second rail; the first track and the second track are used for allowing the cleaning device to move. According to the photovoltaic system provided by the embodiment of the invention, the cleaning device can move among different photovoltaic module rows, manual op