Concentrated monitoring type light-storing micro-grid solar photovoltaic generating system

Abstract

The invention discloses a concentrated monitoring type light-storing micro-grid solar photovoltaic generating system. The system is that the output of a photovoltaic cell panel is connected with the input side of a grid-connected and off-grid inverter; a charge / discharging interface of a storage battery is connected with the grid-connected and off-grid inverter; the load side output of the grid-connected and off-grid inverter is connected with an interface in the general power input side of a double-power change-over switch; the interface in the general power output side of the double-power change-over switch is connected with the load; the grid-connected side output of the grid-connected and off-grid inverter is connected with a power grid, and a backup power input side interface of the double-power change-over switch is synchronously connected to the power grid; a backup power output side interface of the double-power change-over switch is integrally connected in series with the general power output side interface of the double-power change-over switch, so as to provide power to the load. According to the system, all devices are arranged in an integral grid-connected cabinet, beside a photovoltaic cell panel; the whole system can be used for remotely managing through a concentrated monitoring module as well as flexibly switching the grid-connected and off-grid work.

Description

technical field [0001] The invention belongs to the field of photovoltaic power generation, in particular to a centralized monitoring type light storage micro-grid solar photovoltaic power generation system. Background technique [0002] At present, solar photovoltaic power generation has become a power generation technology vigorously promoted and developed in our country. As a new technology, its training is also crucial. At present, there are few photovoltaic storage micro-grid training systems on the market, and some existing photovoltaic power generation systems have a fragmented structure, which cannot be monitored and managed remotely. The utilization rate of the cabinet is not high, and the floor space is large. Contents of the invention [0003] The present invention aims at the problems that the structure of existing photovoltaic power generation system is relatively fragmented, centralized monitoring and remote management is impossible, the utilization rate of...

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Problems solved by technology

[0003] The present invention aims at the problems that the structure of existing photovoltaic power generation system is relatively fragmented, centralized monitoring and remote management is impossible, the utilization rate of the cabinet body is not high, and the occupied area is large, and a centralized monitoring solar photovoltaic power generation system for light-storage micro-grid is provided. Outside the board, other devices are set in the integrated cabinet, the whole system can be managed remotely with the centralized monitoring module and can be flexibly switched between on-grid and off-grid work

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