Abstract
This paper proposes a voltage balancing method for a seven-level stacked multicell converter (SMC) based on phase disposition pulse-width modulation (PD-PWM) using reduced switching transitions. This method is called optimal-transition voltage balancing method. The selection of the optimal transition sequence is performed by minimizing a cost function and the transitions that would result in more switchings of the converter semiconductor devices are avoided. The simulation results show a significant reduction of the average switching frequency as compared to the use of the optimal-state voltage balancing method, while maintaining the balance of the FC voltages. Moreover, the proposed PD-PWM voltage balancing method is robust to unbalanced linear loads, non-linear loads and 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 | 6328-6333 |
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