DC energy storage backup power supply with peak-clipping and valley-filling function and control method thereof

Abstract

The invention provides a DC energy storage backup power supply witha peak clipping and valley filling function, which comprises a control main board, a CAN communication circuit, a voltage and currentacquisition circuit, a battery, a DC-DC converter, a DTU communication module and a cloud server; The control motherboard is connected with the cloud server through the DTU communication module; Thevoltage and current collecting circuit, the battery and the DC-DC converter are connected with that control motherboard through the CAN communication circuit; The battery and the DC-DC converter are connected, and that DC-DC convert is connected with a base station load. The invention also provides a control method of the DC energy storage backup power supply witha peak clipping and valley fillingfunction. The invention can greatly lighten the load of the power network in the period of the peak power price, and can create enormous economic value by utilizing the difference between the peak power price and the valley power price.

Description

Technical field [0001] The invention relates to the field of communications, and in particular to a DC energy storage backup power supply with the function of peak shaving and valley filling and a control method. Background technique [0002] In all current base stations, in order to ensure uninterrupted communication, in addition to the need to supply power to the base station through the grid, it is also necessary to use a backup power supply for power supply; among them, the grid needs to be connected to an AC-DC converter to convert the AC The AC-DC converter is then connected to the base station load through the DC bus to supply power to the base station; the backup power supply is directly connected to the base station load to achieve auxiliary power supply to the base station; currently, the base station backup power supply mainly uses lead-acid batteries Or lithium battery. At the same time, the nominal power of the existing base station power supply is relatively large,...

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is to provide a DC energy storage backup power supply with the function of peak shaving and valley filling, through which the DC energy storage backup power supply can effectively solve the problem of no distributed energy storage function existing in the prior art, Problems such as inconvenient operation, maintenance and repair, inability to use decommissioned batteries of automobiles and other non-standard batteries

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