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High-performance current control techniques for application to multilevel high-power voltage source inverters

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1 Author(s)
Marchesoni, M. ; Dept. of Electr. Eng., Genoa Univ., Italy

Several high-performance current control techniques are developed for applications to multilevel high-power voltage source inverters (VSIs). The logical sequence of the design choices is described, resulting in a very robust and reliable control system that allows an adequate switching optimization, excellent dynamic responses, and high accuracy in steady-state operation. The advantages of using various accessible DC potentials are fully exploited. The validity of the proposed schemes has been confirmed by digital simulations involving the generation of five-level voltage waveforms; however, the current control strategies developed can easily be extended to any multilevel inverter structure, even in the case of n-level voltage waveforms and three-phase systems

Published in:

Power Electronics, IEEE Transactions on  (Volume:7 ,  Issue: 1 )