Title: Adaptive ac filter parameters identification for voltage-oriented control of three-phase voltage-source rectifiers

Authors: Ali Bechouche; Hamid Seddiki; Djaffar Ould Abdeslam; Koussaila Mesbah

Addresses: L2CSP Laboratory, Mouloud Mammeri University, BP 17 RP Tizi-Ouzou, Algeria ' L2CSP Laboratory, Mouloud Mammeri University, BP 17 RP Tizi-Ouzou, Algeria ' MIPS Laboratory, University of Haute-Alsace, 4 rue des Frères Lumières, 68093 Mulhouse, France ' L2CSP Laboratory, Mouloud Mammeri University, BP 17 RP Tizi-Ouzou, Algeria

Abstract: This paper proposes an adaptive voltage-oriented control (VOC) with online ac filter parameters identification for three-phase voltage-source rectifier (VSR). A new method based on adaptive linear neuron (ADALINE) is first designed to identify the ac filter parameters. For accurate identification, the VSR nonlinearity is included in the ADALINE structure. Thereafter, the developed ADALINE is inserted in the VOC to realise an adaptive VOC. Thus, the decoupled terms and the proportional-integral current controller gains are updated online. Finally, the ADALINE ability to track properly the ac filter parameters is investigated by experimental analysis. It shows that the VSR nonlinearity consideration has significant influence on the resistance identification. Compared to the VOC, the enhancement of the proposed adaptive VOC is experimentally proved. The originality of this paper is the building of a VSR model including VSR nonlinearity that is suitable for implementation with ADALINE. This leads to ease of implementation and accurate identification.

Keywords: adaptive linear neuron; ADALINE; ac filter parameters; dead time analysis; decoupled terms; parameter identification; PI controller; voltage-oriented control; adaptive control; VOC; voltage-source rectifier; VSR nonlinearity.

DOI: 10.1504/IJMIC.2015.072985

International Journal of Modelling, Identification and Control, 2015 Vol.24 No.4, pp.319 - 331

Available online: 11 Nov 2015 *

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