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Sensor-Less Five-Level Packed U-Cell (PUC5) Inverter Operating in Stand-Alone and Grid-Connected Modes.
- Source :
- IEEE Transactions on Industrial Informatics; Feb2016, Vol. 12 Issue 1, p361-370, 10p
- Publication Year :
- 2016
-
Abstract
- In this paper, a new mode of operation has been introduced for packed U-cell (PUC) inverter. A sensor-less voltage control based on redundant switching states is designed for the five-level packed U-cell (PUC5) inverter, which is integrated into switching process. The sensor-less voltage control is in charge of fixing the dc capacitor voltage at half of the dc source value results in generating symmetric five-level voltage waveform at the output with low harmonic distortion. The sensor-less voltage regulator reduces the complexity of the control system, which makes the proposed converter appealing for industrial applications. An external current controller has been applied for grid-connected application of the introduced sensor-less PUC5 to inject active and reactive power from inverter to the grid with arbitrary power factor, while the PUC auxiliary dc bus is regulated only by sensor-less controller combined with new switching pattern. Experimental results obtained in stand-alone and grid-connected operating modes of proposed PUC5 inverter prove the fast response and good dynamic performance of the designed sensor-less voltage control in balancing the dc capacitor voltage at desired level. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 15513203
- Volume :
- 12
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Industrial Informatics
- Publication Type :
- Academic Journal
- Accession number :
- 112830318
- Full Text :
- https://doi.org/10.1109/TII.2015.2491260