Active energy balancing method for source-load separation between battery packs

The invention relates to an active energy balancing method for source-load separation between battery packs, and belongs to the field of power electronics. In the prior art, most equalization topologies and equalization control methods can only equalize adjacent batteries, and have the problems of f...

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Bibliographische Detailangaben
Hauptverfasser: ZHANG YUN, WEI YIHANG, ZHU XINSHAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to an active energy balancing method for source-load separation between battery packs, and belongs to the field of power electronics. In the prior art, most equalization topologies and equalization control methods can only equalize adjacent batteries, and have the problems of fixed equalization current, low equalization speed, low efficiency and the like. According to the method provided by the invention, the battery pack is connected by using the provided equalization topological structure, and the power equalization effect is improved by using a source-load separation active energy equalization method based on fuzzy control and optimization droop control. According to the method, when the SOC difference between the battery packs reaches the set threshold value, the equalization parameters such as the equalization mode and the equalization current can be automatically judged, so that the energy can be equalized between any two battery packs, and the magnitude of the equalization current