Reversible AC Drive Systems Based on Parallel AC-AC DC-Link Converters

In this paper, two reversible single-phase-to-three-phase ac drive systems are proposed. They are composed of an induction motor fed by two parallel single-phase-to-three-phase dc-link converters without isolation transformers. Suitable modeling and control strategy of the systems based on odq appro...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2010-07, Vol.46 (4), p.1456-1467
Main Authors: Jacobina, Cursino Brandão, Cipriano dos Santos, Euzeli, Rocha, Nady, de Sá Gouveia, Bernard, da Silva, Edison Roberto Cabral
Format: Article
Language:English
Subjects:
AC drive system
Active filters
Capacitors
Circuit topology
Circulating
Converters
dc-link converters
Fault tolerance
Harmonic distortion
Induction motors
Industry Applications Society
Jacobian matrices
Load flow
parallel converters
Power grids
Simulation
Strategy
Switches
Systems design
Transformers
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Summary:In this paper, two reversible single-phase-to-three-phase ac drive systems are proposed. They are composed of an induction motor fed by two parallel single-phase-to-three-phase dc-link converters without isolation transformers. Suitable modeling and control strategy of the systems based on odq approach, including the unbalanced case, are developed. The proposed topologies permit reducing the harmonic distortion and presents fault tolerance characteristics. Even if the number of switches is increased, the total energy loss of the proposed systems can be lower than that of a conventional one. It is shown that the reduction of the circulating current is an important objective for the system design. A single-phase-to-three-phase dc-link converter generalization has been proposed as well. Simulated and experimental results are presented.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2010.2049724