New hybrid sensorless speed of a non-salient pole PMSG coupled to wind turbine using a modified switching algorithm

Mansouri Mohamed; Hassaine Said; Larbi Mhamed; Bey Mohamed; Allaoui Tayeb; Denai Mouloud; Moudjahed Mohamed

doi:10.1016/j.isatra.2019.04.024

New hybrid sensorless speed of a non-salient pole PMSG coupled to wind turbine using a modified switching algorithm

ISA Trans. 2019 Nov:94:187-199. doi: 10.1016/j.isatra.2019.04.024. Epub 2019 Apr 29.

Authors

Mansouri Mohamed¹, Hassaine Said², Larbi Mhamed³, Bey Mohamed⁴, Allaoui Tayeb⁵, Denai Mouloud⁶, Moudjahed Mohamed⁷

Affiliations

¹ Laboratory of Energy Engineering and Computer Engineering, IBN Khaldoun University, Tiaret, Algeria. Electronic address: Mohamed.mansouri@univ-tiaret.dz.
² Laboratory of Energy Engineering and Computer Engineering, IBN Khaldoun University, Tiaret, Algeria. Electronic address: s_hassaine@yahoo.fr.
³ Laboratory of Energy Engineering and Computer Engineering, IBN Khaldoun University, Tiaret, Algeria. Electronic address: larbi_mh@yahoo.fr.
⁴ Laboratory of Energy Engineering and Computer Engineering, IBN Khaldoun University, Tiaret, Algeria. Electronic address: Mohamed.bey@univ-tiaret.dz.
⁵ Laboratory of Energy Engineering and Computer Engineering, IBN Khaldoun University, Tiaret, Algeria. Electronic address: allaoui_tb@yahoo.fr.
⁶ School of Engineering and Technology, University of Hertfordshire, Hatfield, UK. Electronic address: m.denai@herts.ac.uk.
⁷ Laboratory of Energy Engineering and Computer Engineering, IBN Khaldoun University, Tiaret, Algeria. Electronic address: moudjahedm@yahoo.fr.

PMID: 31097191
DOI: 10.1016/j.isatra.2019.04.024

Abstract

The paper focuses on the design of position and speed observers for the rotor of a non-salient pole permanent magnet synchronous generator (NSPPMSG) coupled to a wind turbine. With the random nature of wind speed this observer is required to provide a position and speed estimates over a wide speed range. The proposed hybrid structure combines two observers and a switching algorithm to select the appropriate observer based on a modified weighting coefficients method. The first observer is a higher-order sliding mode observer (HOSMO) based on modified super twisting algorithm (STA) with correction term and operates in the medium and nominal wind speed ranges. The second observer is used in the low speed range and is based on the rotor flux estimation and the control by injecting a direct reference current different to zero. The stability of each observer has been successfully assessed using an appropriate Lyapunov function. The simulation results obtained show the effectiveness and performance of the proposed observer and control scheme.

Keywords: Fuzzy logic control; High-order sliding mode; Non-salient PMSG; Standalone wind turbine; Super-twisting algorithm.