DC link capacitor voltage balancing of a dual three-level T-type AC drive using switching state redundancy
| Autor: | F. De Belie, A. Salem, M. A. Abido, O. A. Mohamed, Jan Melkebeek, Tarek Youssef |
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| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry 020208 electrical & electronic engineering 010102 general mathematics Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology Converters Decoupling capacitor 01 natural sciences law.invention Capacitor Hardware_GENERAL law Boost converter Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering Redundancy (engineering) Electronic engineering Digital control Algorithm design 0101 mathematics MATLAB business computer computer.programming_language |
| Zdroj: | 2017 IEEE International Electric Machines and Drives Conference (IEMDC). |
| Popis: | Multilevel converters, which are supplied by cascaded capacitors and non-isolated DC sources, can not operate without capacitor voltage balancing. This paper proposes a capacitor voltage balancing technique for the dual three-level T-type advanced converter topology. The reason behind the capacitor voltage unbalance, of this topology, is discussed and clarified by using the converter power circuit connected to an open-end three-phase load. The converter switching states are studied and classified to three different groups according to their effect on the capacitor balancing. The proposed capacitor balancing algorithm is implemented based on switching state redundancy. This algorithm was tested by simulation through Matlab/Simulink and implemented experimentally using a field programmable gate-array digital controller. The proposed capacitor voltage balancing technique has applied to a dual three-level T-type converter AC drive system. The simulation and the experimental results were compared and analysed. Both the simulation and the experimental results are in agreement verifying the proposed algorithm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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