Abstract
Traditional Modular Multilevel Converters (MMCs) need a special care to be taken for starting and for operation at low motor speeds in traction drives. Indeed, the low-frequency current may cause a significant unbalance between the converter sub-module capacitor voltages and then disturb the output waveforms. MMCs with the battery cells integrated inside the sub-modules are an alternative configuration where the traditional battery management system of battery electric vehicles is replaced by the control of the converter, which individually balances all the cells. The paper evaluates the low frequency operation of the MMCs with embedded battery cells when used as traction drives for battery electric vehicles by means of numerical simulations obtained from Matlab/ Simulink and eexperimental results from a down-scaled prototype. Results confirm that MMCs with embedded battery cells do not present any operational issue in traction drives even at low speed.
Original language | English |
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Title of host publication | 2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 1375-1382 |
Number of pages | 8 |
ISBN (Electronic) | 978-1-5090-2067-6 |
ISBN (Print) | 978-1-5090-2068-3 |
DOIs | |
Publication status | Published - 1 Aug 2016 |
Event | 2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion - Capri, Italy Duration: 22 Jun 2016 → 24 Jun 2016 |
Conference
Conference | 2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion |
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Abbreviated title | SPEEDAM 2016 |
Country/Territory | Italy |
City | Capri |
Period | 22/06/16 → 24/06/16 |
Keywords
- Battery electric vehicles
- modular multilevel converters
- motor vector control
- state of charge balancing
- traction drives
ASJC Scopus subject areas
- Automotive Engineering
- Mechanical Engineering
- Control and Optimization
- Electrical and Electronic Engineering