نتایج جستجو برای: flux weakening range

تعداد نتایج: 751797  

2014
R. Gopala Krishnan Mr.S.Vijaya Baskar

This paper proposed to regulate the speed control of PMSM with PI and Adaptive fuzzy based speed control using flux weakening operation. In this method with having advantages in permanent magnet synchronous machine (PMSM) drive can utilization and widen flux weakening region the maximum utilization of inverter output regulated current saturation makes the instantaneous current control capabilit...

2015
Yunchong Wang Shuangxia Niu Weinong Fu

Two novel structures of permanent magnet (PM) machine, namely a hybrid excitation flux modulation machine (HEFMM) and a variable flux memory machine (VFMM), which have excellent field-weakening capability, are presented in this paper. The HEFMM incorporates the advantages of parallel hybrid excitation structure and flux modulation structure, so as to increase the torque density as well as incre...

A dual mechanical port machine (DMPM) is used as an electrically variable transmission (EVT) in hybrid electric vehicle (HEV). In the conventional HEV, this machine is replaced by a planetary gearbox and two electric machines and makes this structure simpler. This paper presents field oriented control (FOC) for DMPM. For HEV application, drive efficiency and wide operating speed range are impor...

Journal: :Physical review letters 2003
J Ahrens X Bai S W Barwick R C Bay T Becka K-H Becker E Bernardini D Bertrand A Biron S Boeser O Botner A Bouchta O Bouhali T Burgess S Carius T Castermans D Chirkin J Conrad J Cooley D F Cowen A Davour C De Clercq T DeYoung P Desiati P Doksus P Ekström T Feser T K Gaisser R Ganugapati M Gaug H Geenen L Gerhardt A Goldschmidt A Hallgren F Halzen K Hanson R Hardtke T Hauschildt M Hellwig P Herquet G C Hill P O Hulth B Hughey K Hultqvist S Hundertmark J Jacobsen A Karle K Kuehn J Kim L Köpke M Kowalski J I Lamoureux H Leich M Leuthold P Lindahl I Liubarsky J Madsen K Mandli P Marciniewski H Matis C P McParland T Messarius T C Miller Y Minaeva P Miocinović P C Mock R Morse T Neunhöffer P Niessen D R Nygren H Ogelman P Olbrechts C Pérez de los Heros A C Pohl R Porrata P B Price G T Przybylski K Rawlins E Resconi W Rhode M Ribordy S Richter J Rodríguez Martino P Romenesko D Ross H-G Sander S Schlenstedt K Schinarakis T Schmidt D Schneider R Schwarz A Silvestri M Solarz M Stamatikos G M Spiczak C Spiering D Steele P Steffen R G Stokstad K-H Sulanke I Taboada S Tilav W Wagner C Walck Y-R Wang C H Wiebusch C Wiedemann R Wischnewski H Wissing K Woschnagg W Wu G Yodh S Young

Data from the AMANDA-B10 detector taken during the austral winter of 1997 have been searched for a diffuse flux of high energy extraterrestrial muon neutrinos. This search yielded no excess events above those expected from background atmospheric neutrinos, leading to upper limits on the extraterrestrial neutrino flux measured at the earth. For an assumed E-2 spectrum, a 90% classical confidence...

2007
S. E. Sibande M. J. Kamper R. Wang

This paper describes the optimum design of a permanent-magnet-assisted reluctance rotor of a 110 kW reluctance synchronous traction machine. Previous studies show that the performance of the pure reluctance synchronous machine drive deteriorates fast in the flux-weakening speed region. To address this problem, thin bonded permanent-magnet sheet material is used inside the flux barriers of the r...

2003
Dmitry I. Garagash John W. Rudnicki

[1] The one-dimensional model of Rudnicki and Chen [1988] for a slip-weakening dilating fault is extended to include shear heating. Because inertia is not included, instability (a seismic event) corresponds to an unbounded slip rate. Shear heating tends to increase pore pressure and decrease the effective compressive stress and the resistance to slip and consequently tends to promote instabilit...

Axial field flux switching motor with sandwiched permanent magnet (AFFSSPM) is a novel of flux switching motor. Based on the vector control method, the mathematical model of the AFFSSPM is derived and the operating performance of the AFFSSPM in the overall operating region is investigated.A novel control method for the AFFSSPM drive system, including the id =0, maximum torque per ampere, consta...

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