C.J. Kendeg Onla^*1, G. Guidkaya¹, D. Saba², E.D. Kenmoe Fankem¹ and J.Y. Effa¹

¹Department of Physics, Faculty of Science, University of Ngaoundére, Ngaoundéré, Cameroon

²Unité de Recherche en Energies Renouvelables en Milieu Saharien, URER-MS, Centre de Développement des Energies Renouvelables, CDER, 01000, Adrar, Algeria

Submitted on 20 October 2024; Accepted on 04 December 2024; Published on 07 December 2024

To cite this article: C.J. Kendeg Onla, G. Guidkaya, D. Saba, E.D. Kenmoe Fankem and J.Y. Effa, “Development of Permanent Magnet Brushless Doubly-Fed Machines Based on Segmented Structure for Wind Power Generation,” Insight. Electr. Electron. Eng., vol. 1, no. 1, pp. 1-8, 2024.

Copyright: 

Abstract

Brushless doubly-fed machines (BDFMs) have received renewed attention in the field of variable speed constant frequency (VSCF) wind power systems. Two new permanent magnet BDFMs (PM-BDFMs) with segmented structures are proposed in this paper to improve the performance of the BDFMs. Compared to conventional BDFMs, PM-BDFMs have two rotors. The internal permanent magnet rotor provides an excitation magnetic field for power and control windings. The external rotor is based on a field modulation ring that provides magnetic coupling between the control and power winding. Due to the absence of the exciting current and excitation loss, the efficiency and power density of the proposed PM-BDFMs can be increased. The segmented structure is adopted for the outer rotor to solve a series of problems caused by the introduction of the field modulation ring. Finally, the performances of the proposed PM-BDFMs are validated by comparison with six other structures of BDFMs using finite element analysis (FEA). The results show that the proposed PM-BDFMs perform better than some existing BDFMs structures.

Keywords: brushless doubly-fed machine; finite element analysis; segmented structures; permanent magnet; wind power generation

Abbreviations: BDFMs: brushless doubly-fed machines; VSCF: variable speed constant frequency; PM-BDFMs: permanent magnet BDFMs; FEA: finite elements analysis; DFIM: doubly-fed induction machine; SMPM-BDFM: surface-mounted permanent magnet BDFM; EMF: electromotive force; SPM-BDFM: spoke permanent magnet BDFM; BDFRMs: brushless doubly-fed reluctance machines; BDFIM: brushless doubly-fed induction machine; SPR: salient pole rotor; ALR: axially laminated rotor; RLDR: radially laminated ducted rotor; SBDFM: segmented brushless doubly-fed machine; FEMM-2D: two-dimensional finite element method software; MATLAB: matrix laboratory software

References

1. R. Datta and V. T. Ranganathan, “Variable-speed wind power generation using doubly fed wound rotor induction machine-a comparison with alternative schemes,” IEEE Trans. Energy Convers., vol. 17, no. 3, pp. 414-421, Sept 2002.
2. H. Li and Z. Chen, “Overview of different wind generator systems and their comparisons,” IET Renew. Power Gener., vol. 2, no. 2, pp. 123-138, Jun 2008.
3. H. Xu, J. Hu and Y. He, “Operation of Wind-Turbine-Driven DFIG Systems Under Distorted Grid Voltage Conditions: Analysis and Experimental Validations,” IEEE Trans. Power Electron., vol. 27, no. 5, pp. 2354-2366, May 2012.
4. P. Han, M. Cheng, S. Ademi and M. G. Jovanovic, “Brushless doubly-fed machines: Opportunities and challenges,” Chin. J. Electr. Eng., vol. 4, no. 2, pp. 1-17, Jun 2018.
5. F. Zhang, S. Yu, Y. Wang, S. Jin and M. G. Jovanovic, “Design and performance comparisons of brushless doubly fed generators with different rotor structures,” IEEE Trans. Ind. Electron., vol. 66, no. 1, pp. 631-640, Jan 2019.
6. A.D. Tchioffo, E. D. K. Fankem, G. Golam, M. Kamta and J. Y. Effa, “Control of a BDFIG based on current and sliding mode predictive approaches,” J. Control. Autom. Electr. Syst., vol. 31, pp. 636–647, Jan 2020.
7. T. D. Strous, H. Polinder and J. A. Ferreira, “Brushless doubly‐fed induction machines for wind turbines: developments and research challenges,” IET Electr. Power Appl., vol. 11, no. 6, pp. 991–1000, Jul 2017.
8. T. D. Strous, X. Wang, H. Polinder and J. A. B. Ferreira, “Brushless Doubly Fed Induction Machines: Magnetic Field Analysis,” IEEE Trans. Magn., vol. 52, no. 11, pp. 1-10, Nov 2016.
9. R. S. Rebeiro and A. M. Knight, “Two-Converters-Based Synchronous Operation and Control of a Brushless Doubly Fed Reluctance Machine,” IEEE Trans. Magn., vol. 54, no. 11, pp. 1-5, Nov 2018.
10. E. D. K. Fankem, C. J. K. Onla, W. Xiaoyan, A. D. Tchioffo and J. Y. Effa, “Modelling of brushless doubly fed reluctance machines based on reluctance network model,” IET Electr. Power Appl., vol. 15, no. 10, pp. 1384-1398, Jun 2021.
11. M. -F. Hsieh, I. -H. Lin, Y. -C. Hsu and R. A. McMahon, "Design of Brushless Doubly-Fed Machines Based on Magnetic Circuit Modeling," IEEE Trans. Magn., vol. 48, no. 11, pp. 3017-3020, Nov 2012.
12. M. -F. Hsieh, Y. -H. Chang, and D. G. Dorrell, “Design and analysis of brushless doubly fed reluctance machine for renewable energy applications,” IEEE Trans. Magn., vol. 52, no. 7, pp. 1-5, Jul 2016.