Photovoltaic power generation alternating current grid-connected box safety device

Abstract

The invention discloses a photovoltaic power generation alternating current grid-connected box safety device. The photovoltaic power generation alternating current grid-connected box safety device includes a photovoltaic power generation alternating current grid-connected box, wherein an electric energy meter is arranged on the top of the photovoltaic power generation alternating current grid-connected box; the top of the electric energy meter is provided with a grid-connected inverter; the side surface of the grid-connected inverter is provided with a controller; the side surface of the photovoltaic power generation alternating current grid-connected box is provided with a storage battery set; one side of the storage battery set is provided with a control display screen; the top end of the storage battery set is provided with an intelligent solar cell panel; the top of the photovoltaic power generation alternating current grid-connected box is provided with a photovoltaic grid-connected current transformer; and one side of the photovoltaic grid-connected current transformer is provided with a step up transformer. The photovoltaic power generation alternating current grid-connected box safety device is an important application mode for solar generation. Besides, as distributed photovoltaic power generation can fully utilize the characteristic that solar energy exists widely to avoid the place restriction factor for concentrated construction, especially on account of the realistic condition of dense inhabitation in the mid-east region of China, the large scope application prospect of the photovoltaic power generation alternating current grid-connected box safety device is extremely wide.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to a safety device for a photovoltaic power generation AC grid-connected box. Background technique [0002] The so-called photovoltaic power generation AC grid-connected box safety device, of course, refers to the ability to convert the alternating current generated by the photovoltaic array into the alternating current that meets the requirements of the public power grid through the grid-connected inverter and then directly connect to the public power grid. The photovoltaic power generation system is usually composed of solar panels, The battery pack, controller, inverter, and photovoltaic power generation AC grid-connected box are composed of several parts. Common systems for the safety device of photovoltaic power generation AC grid-connected box include independent systems and grid-connected systems. The electric energy emitted by the light can supply power...

AI Technical Summary

Problems solved by technology

[0003] However, the array orientation of the existing photovoltaic power generation AC grid-connected safety device is fixed and does not change with the position of the sun. Since the photovoltaic modules are fixed and cannot move with the movement of sunlight, it is impossible to ensure that the maximum sunlight radiation can be obtained. Therefore, the power generation is relatively low, and there are also problems such as complex structure, relatively high cost, and high maintenance cost.

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