Full
Outline
The lithium-ion battery equalizer based on a Buck-Boost converter can only transfer the energy in a step-by-step way, resulting in a long energy transmission path and a low equalization efficiency. On this basis, a lithiumion battery equalizer based on dual active half-bridge is studied. The key parameters affecting the energy flow between cells within a group and between those in different groups in the half-bridge equalizer are analyzed, and a phase-shift control strategy is put forward accordingly. The dual active half-bridge equalizer under phase-shift control can realize a fast energy transfer between cells in the half-bridge group at a high frequency. Since the equalizer operates in a high-frequency state, its volume and weight are greatly reduced. The expressions for the equivalent equalization current between cells within a group and that between cells in different groups were derived in detail, and a simulation model and an experimental prototype were built to perform a verification. Simulation and experimental results show that the proposed dual active half-bridge lithium-ion battery equalizer based on phase-shift control can quickly realize voltage equalization between battery cells.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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