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Sliding-Mode Control in Natural Frame With Reduced Number of Sensors for Three-Phase Grid-TiedLCL-Interfaced Inverters.
- Source :
-
IEEE Transactions on Industrial Electronics . Apr2019, Vol. 66 Issue 4, p2903-2913. 11p. - Publication Year :
- 2019
-
Abstract
- In this paper, a sliding-mode control (SMC) strategy is proposed for three-phase grid-tiedLCL-filtered voltage source inverters in the natural frame. The SMC in the natural frame is based on controlling the sliding surface functions of phase-legsaandb. The sliding surface function of phase-legcis obtained from the sliding surface functions of phase-legsaandb. This eliminates the need for sensing capacitor voltage and grid current of phase-legc. The capacitor voltage references are generated by the proportional-resonant (PR) controllers which result in zero steady-state error in the grid current. The feasibility and performance of the proposed SMC strategy is investigated under steady-state, transient, unbalanced, and distorted grid conditions. Experimental results taken from a 9.8 kW system are provided to demonstrate the validity of the proposed SMC strategy. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02780046
- Volume :
- 66
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Industrial Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 133482858
- Full Text :
- https://doi.org/10.1109/TIE.2018.2847675