Voltage balancing control of diode-clamped multilevel rectifier/inverter systems

This paper presents a new voltage balancing control for the diode-clamped multilevel rectifier/inverter system. A complete analysis of the voltage balance theory for a five-level back-to-back system is given. The analysis is based on fundamental frequency switching control and then extended to pulse...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2005-11, Vol.41 (6), p.1698-1706
Main Authors: Zhiguo Pan, Fang Zheng Peng, Corzine, K.A., Stefanovic, V.R., Leuthen, J.M., Gataric, S.
Format: Article
Language:English
Subjects:
Capacitors
Control systems
Diodes
Electric potential
Frequency
Inverters
Multilevel
Multilevel converter
Optimization methods
Pulse duration modulation
Pulse width modulation
Pulse width modulation inverters
Rectifiers
Space vector pulse width modulation
Switching
total harmonic distortion
Voltage
voltage balancing
Voltage control
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Description
Summary:This paper presents a new voltage balancing control for the diode-clamped multilevel rectifier/inverter system. A complete analysis of the voltage balance theory for a five-level back-to-back system is given. The analysis is based on fundamental frequency switching control and then extended to pulsewidth modulation (PWM). The method involves obtaining optimal switching angles; a process that is described in detail herein. The proposed control strategy regulates the dc bus voltage, balances the capacitors, and decreases the harmonic components of the voltage and current. Simulation and experimental results demonstrate the validity of the optimizing method and control theory.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2005.857473