TY - JOUR
T1 - Design of a Switched Reluctance Machine for Extended Speed Operation
AU - Schofield, Nigel
AU - Long, Stephen A.
AU - Howe, David
AU - McClelland, Mike
N1 - Funding Information:
Paper IPCSD-08-013, presented at the 2003 IEEE International Electric Machines and Drives Conference, Madison, WI, June 1–4, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Electric Machines Committee of the IEEE Industry Applications Society. Manuscript submitted for review July 22, 2004 and released for publication April 1, 2008. Current version published January 21, 2009. This work was supported by the EC under Project “New high efficiency electric machines solutions for mild hybrid applications (ELMAS),” under Contract ENK6-CT1999-00017, under Framework V of the EC RTD Programme.
Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2009/1/20
Y1 - 2009/1/20
N2 - This paper presents results from a design study on the feasibility of employing high-efficiency switched reluctance (SR) machines in minimal hybrid-electric vehicles. The application requirements are presented and highlight the constraining influences of the vehicle drive-line topology on the machine design. The benefit of continuous phase current excitation is reported for the first time, demonstrating that constant power at an extended-speed operation can be realized with a higher number of phase winding turns per pole than would otherwise be achieved with conventional discontinuous current control. Thus, the torque/Ampere capability, when operating at or below base speed, is not as significantly compromised, an important consideration for the power inverter rating and, hence, drive system cost. The design procedure and simulated results are validated by measurements from a prototype machine. The results demonstrate the potential of SR technology for high-performance low-cost automotive applications, which often combine arduous environmental and volumetric constraints. In addition, the results highlight the benefits of continuous current control for extended-speed operation.
AB - This paper presents results from a design study on the feasibility of employing high-efficiency switched reluctance (SR) machines in minimal hybrid-electric vehicles. The application requirements are presented and highlight the constraining influences of the vehicle drive-line topology on the machine design. The benefit of continuous phase current excitation is reported for the first time, demonstrating that constant power at an extended-speed operation can be realized with a higher number of phase winding turns per pole than would otherwise be achieved with conventional discontinuous current control. Thus, the torque/Ampere capability, when operating at or below base speed, is not as significantly compromised, an important consideration for the power inverter rating and, hence, drive system cost. The design procedure and simulated results are validated by measurements from a prototype machine. The results demonstrate the potential of SR technology for high-performance low-cost automotive applications, which often combine arduous environmental and volumetric constraints. In addition, the results highlight the benefits of continuous current control for extended-speed operation.
KW - Automotive power-trains
KW - Electric vehicles
KW - Minimal hybrid-electric vehicles
KW - Switched reluctance machines
UR - http://www.scopus.com/inward/record.url?scp=59649119585&partnerID=8YFLogxK
U2 - 10.1109/TIA.2008.2009506
DO - 10.1109/TIA.2008.2009506
M3 - Conference article
AN - SCOPUS:59649119585
VL - 45
SP - 116
EP - 122
JO - IEEE Transactions on Industry Applications
JF - IEEE Transactions on Industry Applications
SN - 0093-9994
IS - 1
M1 - 4757404
T2 - IEEE International Electric Machines and Drives Conference
Y2 - 1 June 2003 through 4 June 2003
ER -