Load characteristic analysis of a double-side internal coreless stator axial flux PMG

Ketut Wirtayasa; Pudji Irasari; Muhammad Kasim; Puji Widiyanto; Muhammad Fathul Hikmawan; Ketut Wirtayasa; Pudji Irasari; Muhammad Kasim; Puji Widiyanto; Muhammad Fathul Hikmawan

doi:10.14203/j.mev.2019.v10.17-23

Load characteristic analysis of a double-side internal coreless stator axial flux PMG

Ketut Wirtayasa, Pudji Irasari, Muhammad Kasim, Puji Widiyanto, Muhammad Fathul Hikmawan

Abstract

The main issue of using a permanent magnet in electric machines is the presence of cogging torque. Several methods have been introduced to eliminate it, one of which is by employing a coreless stator. In this paper, the load characteristic analysis of the double-side internal coreless stator axial flux permanent magnet generator with the specification of 1 kW, 220 V, 50 Hz, 300 rpm and 1 phase is discussed. The purpose is to learn the effect of the load to the generator performance, particularly the output power, efficiency and voltage regulation. The design and analysis are conducted analytically and numerically with two types of simulated loads, pure resistive and resistive-inductive in series. Each type of load provides power factor 1 and 0.85 respectively. The simulation results show that when loaded with resistive load, the generator gives a better performance at the output power (1,241 W) and efficiency (91 %), whereas a better voltage regulator (5.86 %) is achieved when it is loaded with impedance. Since the difference in the value of each parameter being compared is relatively small, it can be concluded that the generator represents good performance in both loads.

10.14203/j.mev.2019.v10.17-23

Keywords

coreless stator; axial flux permanent magnet generator; load characteristics; resistive load; resistive-inductive in series

Full Text:

PDF

References

S. S. Soe and Y. A. Oo, “Design of the Coreless Axial-Flux Double-Sided Permanent Magnet Synchronous Generator for Wind Power System,” Int. J. Sci. Eng. Technol. Res., vol. 3, no. 10, pp. 2047–2051, 2014.

S. Saint Soe and Y. A. N. A. Oo, “Design and Implementation of the Double-Sided Axial-Flux PMSG with Slotted Stator by Using Sizing Equation and FEA Software,” in Proceedings of Nineteenth TheIIER International Conference, 2015, no. April, pp. 63–69.

D. Ahmed and A. Ahmad, “An optimal design of coreless direct-drive axial flux permanent magnet generator for wind turbine,” J. Phys. Conf. Ser., vol. 439, 2013.

A. Daghigh, H. Javadi, and H. Torkaman, “Improved design of coreless axial flux permanent magnet synchronous generator with low active material cost,” in The 6th International Power Electronics Drive Systems and Technologies Conference (PEDSTC2015), 2015, pp. 532–537.

S. S. Bageshwar, P. V Phand, R. V Phand, P. G. Student, and U. G. Student, “Design & Analysis of Axial Flux Permanent Magnet Synchronous Generator,” Int. J. Res. Trends Innov., vol. 2, no. 7, pp. 123–129, 2017.

M. Chirca, S. Breban, C. A. Oprea, and M. M. Radulescu, “Analysis of Innovative Design Variations for Permanent-Magnet Generators in Micro-Wind Power Applications,” in 2014 International Conference on Electrical Machines (ICEM), 2014, pp. 385–389.

A. O. Otuoze, O. O. Ogidi, O. O. Mohammed, A. A. Jimoh, and B. S. Olaiya, “Sizing of Wind Powered Axial Flux Permanent Magnet Alternator Using Analytical Approach,” Niger. J. Technol., vol. 35, no. 4, pp. 919–925, 2016.

M. R. Minaz and M. Çelebi, “Design and analysis of a new axial flux coreless PMSG with three rotors and double stators,” Results Phys., vol. 7, pp. 183–188, 2017.

M. R. Minaz and M. Çelebi, “Analysis and Design of an Axial-Flux Coreless Permanent Magnet Synchronous Generator with Single Stators and Double Rotors,” Int. J. Energy Appl. Technol., vol. 4, no. 1, pp. 7–11, 2017.

D. Chung and Y. You, “Design and Performance Analysis of Coreless Axial-Flux Permanent-Magnet Generator for Small Wind Turbines,” J. Magn., vol. 19, no. 3, pp. 273–281, 2014.

J. F. Gieras, R. Wang, and M. J. Kamper, Axial Flux Permanent Magnet Brushless Machines, 2nd ed. Springer, 2008.

S. Kim, J. Li, D. Choi, and Y. Cho, “Design and analysis of Axial Flux Permanent Magnet Generator for Direct-Driven Wind Turbines,” Int. J. Power Syst., vol. 2, pp. 1–6, 2017.

T. S. El-hasan, “Development of Automotive Permanent Magnet Alternator with Fully Controlled AC / DC Converter,” Energies, vol. 11, no. 274, pp. 1–28, 2018.