Photovoltaic uninterruptible power supply power transformation system

Abstract

The invention discloses a photovoltaic uninterruptible power supply power transformation system, and the system comprises a box body which is provided with an accommodation cavity; a self-energy-consumption assembly which is arranged in the containing cavity; an energy storage assembly which is arranged in the containing cavity, wherein the energy storage assembly is electrically connected with the self-energy-consumption assembly; and a photovoltaic module which is arranged at the top of the box body, wherein the photovoltaic module is electrically connected with the self-energy-consumption module and the energy storage module. The photovoltaic assembly receives sunlight and can generate electric energy, the electric energy is transmitted to the self-energy-consumption assembly to supply power to the self-energy-consumption assembly, meanwhile, the electric energy generated by the photovoltaic assembly is transmitted to the energy storage assembly, the energy storage assembly stores the electric energy, when the sunlight is insufficient, the energy storage assembly releases the electric energy to supply power to the self-energy-consumption assembly, and the uninterrupted power supply effect is achieved. According to the structure, sunlight, namely solar energy, received by the occupied space of the box body can be fully utilized; meanwhile, even if the box body is not connected into a power grid for a long time due to movement or placement, the situation that electric energy of the energy storage assembly is exhausted can be reduced, reliability can be improved, and application is more convenient.

Description

technical field [0001] The invention relates to the field of substations, in particular to a power transformation system for photovoltaic uninterrupted power supply. Background technique [0002] The substation can realize the functions of collecting and distributing electric energy, and is an essential equipment system for the normal operation of the power grid. Among them, the box-type substation integrates the substation device in the box, which has the advantages of small footprint and mobility, and can be flexibly applied in various outdoor use scenarios. Box-type substations are generally equipped with self-consumption components such as opening and closing electromagnets, meters, lights, and dehumidifiers. In order to supply power to self-consumption components, box-type substations are equipped with UPS (uninterruptible power supply). After the AC voltage is stabilized, it supplies power to the self-consumption components, and the UPS has a built-in battery. When th...

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Problems solved by technology

[0003] However, in the existing box-type substation structure, the power consumed by the UPS comes from the grid, which consumes a lot of power to the grid, and the box-type substation has not been connected to the grid for a long time during the process of moving or placing, and there will be battery power exhaustion It is not easy to apply when the box-type substation cannot work normally.

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