Charging control method and device for battery pack cascade type power supply integrated topology
By adopting an integrated topology charging control method in the cascaded battery power supply, using a constant current source charger and an IGBT half bridge, the problems of high cost and low efficiency of battery pack charging in the existing technology are solved, and efficient and economical battery pack charging is achieved.
CN119696127AActive Publication Date: 2025-03-25INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Patent Information
- Application Number
- CN202510216724.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2045-02-26
AI Technical Summary
Technical Problem
In the prior art, the battery pack is charged with a distributed charger, which has problems such as low power density and high manufacturing cost.
Method used
The charging control method of the integrated topology of the battery pack cascade power supply is adopted. A constant current source charger is used to charge the multi-stage cascade module, and a phased constant current charging is achieved using the IGBT half bridge.
Benefits of technology
It reduces the production cost of the charging system and realizes phased constant current charging of battery packs at all levels, which is suitable for different types of battery charging.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a charging control method and device for a battery pack cascade type power supply integrated topology, and belongs to the technical field of power electronic control. According to the method, a constant current source charger is used as an integrated charger to charge battery packs of cascade modules at all levels, and IGBT half bridges in existing cascade modules at all levels are utilized to charge the battery packs of the cascade modules at all levels at the same time; according to the charging control method, charging of the battery packs of the cascade modules is achieved, the multi-stage charging process is adopted, the target charging voltage values of different charging stages are gradually increased, meanwhile, the charging current values are gradually decreased, and the charging current values are matched with the characteristics of the battery charging process, so that the time for the battery packs of the different cascade modules to be connected into or disconnected from the charging loop can be controlled; the charging process is flexible.
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