Intelligent multi-path mixed battery manager based on daisy chain bus, control method thereof and application thereof

Abstract

The present invention discloses an intelligent multi-path mixed battery manager based on a daisy chain bus. The intelligent multi-path mixed battery manager comprises a switching power source, a basestation load, a lead-acid battery pack, a direct current bus and a plurality of lithium battery power supply units; one end of the switching power source is connected with an electric supply, and theother end of the switching power source is connected with the direct current bus; the base station load, the lead-acid battery pack and the lithium battery power supply units are connected in paralleland are connected with the direct current bus. The signal communication between the lithium battery power supply units is achieved through the daisy chain bus. The present invention further disclosesa control method and an application of the battery manager mentioned above.

Description

technical field [0001] The invention relates to an intelligent multi-channel hybrid battery manager based on a daisy chain bus, a control method and an application thereof, and belongs to the technical field of energy storage batteries for communication base stations. Background technique [0002] With the popularization and use of various wireless communication devices, it becomes more and more important to maintain a stable communication base station. In order to provide a stable communication signal for a certain range of surrounding areas, the design of the communication base station must make an emergency plan for the power failure of the mains power that may cause the load in the communication base station to be cut off. Therefore, lead-acid batteries are often used as the mains power failure It is widely used in the design and construction of communication base stations. [0003] However, lead-acid batteries have a short service life, coupled with frequent power fail...

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Problems solved by technology

[0004] The object of the present invention is to address the above-mentioned problems, propose a kind of intelligent multi-channel hybrid battery manager based on daisy chain bus, control method and application thereof, set out from the angle of discharge control of lithium battery pack, several lithium battery packs and daisy chain bus The combination of control can improve the problems of complex wiring and complex control methods in general design. At the same time, the daisy chain bus can control the discharge of lithium battery packs separately, so as to control the discharge of lithium battery packs one by one, so as to solve the problem of undercharging of lead-acid batteries in communication base stations. Too frequent charging and discharging, excessive consumption of some lithium battery packs, and bus faults generally cause problems such as abnormal system power supply when the mains power fails, reducing the cost of operation and maintenance of communication base stations, and better ensuring low-cost and stable operation of communication base stations

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