Automatic zero-clearance by-pass connection system for storage battery pack

Abstract

The invention relates to an automatic zero-clearance by-pass connection system for a storage battery pack. The automatic zero-clearance by-pass connection system is characterized in that a single battery management unit (3) is directly connected with each storage battery (7) through positive and negative sampling wiring harnesses (8); each storage battery (7) is provided with one single battery management unit (3); all the single battery management units (3) are hung on a network bus (6) through a 485 communication wiring harness (9) and then are uniformly connected into a battery pack general control unit (2); meanwhile, a current sensor module (5) is used for carrying out communication accessing on discharging current of the whole set of the storage batteries (7) and a temperature sensor module (4) is used for carrying out communication accessing on environment temperatures of the whole set of the storage batteries (7) through a 485 communication port and the battery pack general control unit (2), so as to realize real-time monitoring of the whole set of the storage batteries; meanwhile, the battery pack general control unit (2) is used for predicating the performance of the storage batteries. The automatic zero-clearance by-pass connection system can be used for carrying out real-time monitoring on normal operation of the storage battery pack and directly discharging falling-behind or fault batteries without clearances.

Description

technical field [0001] The invention belongs to the technical field of battery pack operation and maintenance management, and in particular relates to a battery pack automatic seamless bypass connection system, which is mainly used in electric power, communication, finance, mining, media, power supply and other industries. Background technique [0002] At present, under most application conditions, batteries are used in series in groups. In electric power and some other industrial occasions, these series-connected battery packs are usually used in combination with conventional rectified power supplies (including charging power supplies). The rectified power supplies provide electrical energy to the entire system and float-charge the battery packs used as backup power supplies. If the rectifier power supply is cut off, the battery pack will change from the backup power supply to the main power supply to supply power to the system. At this time, the reliability of the battery...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an automatic gapless bypass connection system for battery packs, which solves the problem of inaccurate monitoring, high maintenance costs, and unsafety in the existing technology for battery operation and maintenance management, and it is impossible to avoid the failure of the entire battery pack due to a single battery failure. Problems and defects of power failure, by establishing a real-time monitoring and early warning system for battery packs, a system for automatic seamless bypassing of batteries is proposed, and the technical solution adopted to achieve the purpose of the present invention is: a battery pack The automatic gapless bypass system includes the single battery management unit distributedly installed on each battery, and the battery pack master control unit for unified management of all the single battery management units. It is characterized in that: the single battery management unit and each battery The positive and negative two sampling harnesses are directly connected, and each battery is equipped with a single battery management unit. All single battery management units are hung on the network bus through the 485 communication harness and then connected to the battery pack master control unit. At the same time, the current sensor module The discharge current of the whole set of batteries and the temperature sensor module communicate the ambient temperature of the whole set of batteries with the battery pack master control unit through the 485 communication interface to realize real-time monitoring of the whole set of batteries. performance prediction

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