computation of electromagnetic torque in a double rotor switched reluctance motor using flux tube methods计算双转子开关磁阻电动机的电磁转矩使用磁流管方法.pdfVIP

Energies 2012, 5, 4008-4026; doi:10.3390/en5104008 OPEN ACCESS energies ISSN 1996-1073 /journal/energies Article Computation of Electromagnetic Torque in a Double Rotor Switched Reluctance Motor Using Flux Tube Methods Chockalingam Aravind Vaithilingam Norhisam Misron *, Mohammad Reza Zare, Ishak Aris , and Mohammad Hamiruce Marhaban Department of Electrical Electronic Engineering, University Putra Malaysia, Serdang 43400 UPM, Malaysia; E-Mails: aravindcv@ (C.A.V.); zareh81@ (M.R.Z.); ishak@.my (I.A.); hamiruce@.my (M.H.M.) * Author to whom correspondence should be addressed; E-Mail: norhisam@.my; Tel.: +603-8946-6299; Fax: +603-8946-6327. Received: 19 August 2012; in revised form: 22 September 2012 / Accepted: 4 October 2012 / Published: 18 October 2012 Abstract: With their highly robust nature and simple design, switched reluctance machines are finding their way into numerous modern day applications. However, they produce oscillatory torque that generates torque ripple and mechanical vibrations. A double rotor structure to maximize the flux linkage and thereby increase the torque generating capability is proposed. As the machine operates close to saturation, the torque computation depends heavily on the energy conversion as the rotor rolls over the stator for a fixed pole pitch. The flux linkage characteristics are highly non-linear, hence estimation of the magnetic and mechanical parameters is extremely cumbersome. Magnetic circuit analysis by i