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Power Loss Evaluation of Voltage Equalisation Circuit for Series-connected Supercapacitors Energy Storage
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| Author(s) |
Ponggorn KULSANGCHAROEN, Christian KLUMPNER, Mohamed RASHED, Greg ASHER |
| Abstract |
This paper investigates the various aspects of designing and exploiting a flyback type of regenerative voltage equalizer circuit for supercapacitor stacks consisting of multiple cells. The impact of circuit parameters (magnetising inductance, peak current), operating modes (constant switching frequency or constant peak current) and duration of equalising are investigated in detail on a predefined four supercapacitor cells stack from the point of view of energy efficiency and effectiveness of equalising. Finally, the performance of the active-regenerative equalising circuit is compared to the performance of an active-dissipative circuit, concluding that it offers better efficiency, performs a more effective voltage equalising and, due to using a single active device, may even be more economical to build. |
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| Filename: | 0803-epe2011-full-23572465.pdf |
| Filesize: | 415.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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