Abstract
Charge balancers are needed to equalize the energy stored in battery cells connected in series to increase the usable capacity and lifetime of the entire stack. A multiple-input multiple-output DC/DC converter for battery module balancing, based on flux additivity, is proposed. It allows bidirectional, simultaneous and direct charge transfer. A prototype converter with two bidirectional channels has successfully been built-up and tested. First experimental results are presented to verify the feasibility of the charge balancer. A time averaged model is derived considering the influence of the common multiwinding transformer voltage.
| Original language | English |
|---|---|
| Pages (from-to) | 495-501 |
| Number of pages | 7 |
| Journal | World Electric Vehicle Journal |
| Volume | 6 |
| Issue number | 3 |
| State | Published - 2013 |
Keywords
- Battery Management System
- Charge equalization
- Converter
- DC-DC
- Electronic