Abstract
This paper proposes an active voltage balancing method for stacked multicell converters (SMC) using phase-shifted pulse-width modulation, which is easy to implement and extend to high number of levels. The proposed method balances the voltages of the capacitors by modifying the duty cycle of each switch of the SMC using a proportional controller. The crossed effect between capacitor currents and duty cycles is considered and is used for optimal capacitor voltage balance. The performance of the proposed voltage balancing method is verified by simulation for different operating conditions, such as unbalanced linear loads, non-linear loads and load transients.
Original language | English |
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Title of host publication | Proceedings IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 6334-6339 |
Number of pages | 6 |
ISBN (Electronic) | 9781479902248 |
DOIs | |
Publication status | Published - 2013 |
Externally published | Yes |
Event | 39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 - Vienna, Austria Duration: 10 Nov 2013 → 14 Nov 2013 |
Conference
Conference | 39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 |
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Country/Territory | Austria |
City | Vienna |
Period | 10/11/13 → 14/11/13 |
Keywords
- Capacitor voltage balancing
- Multilevel converter
- Pulse-width modulation
- Stacked multicell converter