High-Power Machine Drive, Using Nonredundant 27-Level Inverters and Active Front End Rectifiers

A nonredundant 27-level inverter using ldquoHrdquo converters is being analyzed for high power machine drive applications. The main advantage of this kind of converter is the minimum harmonic distortion obtained at the machine side. The drawbacks are the large number of isolated dc power supplies re...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2007-11, Vol.22 (6), p.2527-2533
Main Authors: Dixon, J., Breton, A.A., Rios, F.E., Rodriguez, J., Pontt, J., Perez, M.A.
Format: Article
Language:English
Subjects:
Active control
Applied sciences
Circuit properties
Control systems
Converters
Convertors
Digital signal processing
Digital signal processors
Diodes
Direct current
Electric currents
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical machines
Electronic circuits
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Harmonic distortion
High-power applications
Inverters
Motors
multilevel inverters
power drives
Power electronics, power supplies
Power supplies
Reactive power
Rectifiers
Signal convertors
Simulation
Topology
Transformers
Virtual prototyping
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Summary:A nonredundant 27-level inverter using ldquoHrdquo converters is being analyzed for high power machine drive applications. The main advantage of this kind of converter is the minimum harmonic distortion obtained at the machine side. The drawbacks are the large number of isolated dc power supplies required for each one of the three stages of the multistage converter. In this paper this problem has been overcome in two ways: 1) by using independent windings for each phase of the motor and 2) by using independent input transformers. Special configurations and combinations of diode rectifiers and active front end rectifiers for one of the stages of the drive are used to eliminate input harmonics. The topology can also keep high power factor at the input terminals. Simulation results are shown and some experiments with small three-stage prototype are displayed. The control of this multiconverter is being implemented using DSP controllers, which give flexibility to the system.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2007.909276