|
|
|
| Performance of Six-Phase Induction Motor With Trapezia Phase Current Waveforms |
| Ai Yongle1, Wang Yumei1, Kamper Marrten2 |
| 1.Henan Polytechnic University Jiaozuo 454000 China 2. University of Stellenbosch Stellenbosch 7602 South Africa |
|
|
|
|
Abstract To realize the function that the field and torque can be controlled directly, a novel direct field and direct torque control strategy used in six-phase induction motor with special phase current waveform is proposed and evaluated. Firstly, the electromagnetic torque is calculated by theoretical and finite element analysis. Secondly, the analysical results are verified by practical experiment. The dominant merit of the proposed control strategy is that the flux and torque of the induction motor are directly controlled as compared to vector control that uses Park transformation theory. Another merit is that with stator winding layout, a nearly square, smooth rotating flux density in the air gap is generated by using the resultant field currents and the electromagnetic torque can be improved greatly.
|
|
Received: 03 July 2008
Published: 17 February 2014
|
|
|
|
|
|
[1] Ai Yongle, Kamper M J, Wang Yumei, et al. Torque performance investigation of double three-phase motor using special current waveform[C]. Proc. 4th Conf.2004 International Electronic Motion Control (IPEMC2004) Xi’an, China, 2004: 1673-1678.
[2] Ai Yongle, Kamper M J, Wang Yumei. Investigation of airgap density and torque performance of six-phase induction motor with special phase current waveform[C]. Proc. 8th conf.2005 ICEMS, Nanjing, China, 2005: 99-104.
[3] Kamper M J. Design optimization of cageless flux barrier rotor reluctance synchronous machine[D]. Stellenbosch: University of Stellenbosch, 1996.
[4] Ai Yongle. Novel direct field and torque control of six-phase induction machine with special current waveform[D]. Stellenbosch: University of Stellen- bosch, 2006.
[5] Lyra R O C, Lipo T A. Torque density improvement in a six-phase induction motor with third harmonic current injection[J]. IEEE Trans. on IAS, 2002, 38(5): 1351-1360. |
|
|
|
2009, Vol. 24 
