A Seven-Level Inverter Topology for Induction Motor Drive Using Two-Level Inverters and Floating Capacitor Fed H-Bridges
Data(s) |
01/06/2011
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Resumo |
A multilevel inverter topology for seven-level space vector generation is proposed in this paper. In this topology, the seven-level structure is realized using two conventional two-level inverters and six capacitor-fed H-bridge cells. It needs only two isolated dc-voltage sources of voltage rating V(dc)/2 where V(dc) is the dc voltage magnitude required by the conventional neutral point clamped (NPC) seven-level topology. The proposed topology is capable of maintaining the H-bridge capacitor voltages at the required level of V(dc)/6 under all operating conditions, covering the entire linear modulation and overmodulation regions, by making use of the switching state redundancies. In the event of any switch failure in H-bridges, this inverter can operate in three-level mode, a feature that enhances the reliability of the drive system. The two-level inverters, which operate at a higher voltage level of V(dc)/2, switch less compared to the H-bridges, which operate at a lower voltage level of V(dc)/6, resulting in switching loss reduction. The experimental verification of the proposed topology is carried out for the entire modulation range, under steady state as well as transient conditions. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/40340/1/A_Seven-Level.pdf Rajeevan, PP and Sivakumar, K and Patel, Chintan and Ramchand, Rijil and Gopakumar, K (2011) A Seven-Level Inverter Topology for Induction Motor Drive Using Two-Level Inverters and Floating Capacitor Fed H-Bridges. In: IEEE Transactions on Power Electronics, 26 (6). pp. 1733-1740. |
Publicador |
IEEE |
Relação |
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5617285&tag=1 http://eprints.iisc.ernet.in/40340/ |
Palavras-Chave | #Electronic Systems Engineering (Formerly, (CEDT) Centre for Electronic Design & Technology) |
Tipo |
Journal Article PeerReviewed |