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Control of five-level flying capacitor based active-neutral-point-clamped converter for grid connected wind energy applications.
- Source :
- 2012 IEEE Industry Applications Society Annual Meeting; 1/ 1/2012, p1-9, 9p
- Publication Year :
- 2012
-
Abstract
- Integration of wind energy sources into the distribution grid affects the voltage profile that could be stabilized through the grid reinforcement or limiting the active power injection. This paper presents a control strategy to regulate the voltage at point of common coupling (PCC) through reactive power exchange to the grid. The reactive power capability of the grid-connected hybrid multilevel converter is based on the voltage sensitivity of the distribution grid at PCC. A hybrid five-level multilevel converter referred as flying capacitor (FC) based active-neutral-point-clamped (ANPC) converter is considered. It is an arrangement of a three-level ANPC converter and a two-level cell. Also, a control strategy is proposed to regulate the FCs voltages of the grid-connected hybrid multilevel converter at their required values. The proposed FC control strategy provides extra freedom to regulate the dc-link capacitor voltages with dc-offset injection technique. Simulation studies demonstrate the performance of the proposed control strategies for the system considered. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISBNs :
- 9781467303309
- Database :
- Complementary Index
- Journal :
- 2012 IEEE Industry Applications Society Annual Meeting
- Publication Type :
- Conference
- Accession number :
- 86551139
- Full Text :
- https://doi.org/10.1109/IAS.2012.6374046