TY - GEN
T1 - Optimal design of BLDC multi-phase reluctance machines (MRM) for variable speed drives
AU - Ursu, Dragos
AU - Tutelea, Lucian Nicolae
AU - Ionel, Dan
AU - Boldea, Ion
PY - 2017/7/11
Y1 - 2017/7/11
N2 - BLDC-MRM is a brushless salient rotor multiple phase (m) stator reluctance machine fed with bipolar two-levelflat-Top electronic controlled phase currents where mF phases play as "field" phases and mT=m-mF phases play as "torque" phases, like in a dc brush machine with brushes off the neutral axis and without dc excitation. With all phases active at all times, an inherent around 900 power angle, moderate air-gap (in axis d) and high magnetic reluctance in axis q, BLDC-MRM is expected to produce competitive performance over a wide constant power speed range (CPSR) at lower overall machine + converter costs, due to inherent flux-weakening and better inverter input dc voltage utilization. This paper introduces a magnetic circuit model (MEC) based optimal design methodology, with embedded FEM validation, illustrated for a 160Nm, 3000rpm application with promising results (94.1% efficiency for 31.5kg of active materials and no PMs).
AB - BLDC-MRM is a brushless salient rotor multiple phase (m) stator reluctance machine fed with bipolar two-levelflat-Top electronic controlled phase currents where mF phases play as "field" phases and mT=m-mF phases play as "torque" phases, like in a dc brush machine with brushes off the neutral axis and without dc excitation. With all phases active at all times, an inherent around 900 power angle, moderate air-gap (in axis d) and high magnetic reluctance in axis q, BLDC-MRM is expected to produce competitive performance over a wide constant power speed range (CPSR) at lower overall machine + converter costs, due to inherent flux-weakening and better inverter input dc voltage utilization. This paper introduces a magnetic circuit model (MEC) based optimal design methodology, with embedded FEM validation, illustrated for a 160Nm, 3000rpm application with promising results (94.1% efficiency for 31.5kg of active materials and no PMs).
UR - http://www.scopus.com/inward/record.url?scp=85027677366&partnerID=8YFLogxK
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U2 - 10.1109/OPTIM.2017.7975015
DO - 10.1109/OPTIM.2017.7975015
M3 - Conference contribution
AN - SCOPUS:85027677366
T3 - Proceedings - 2017 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2017 and 2017 Intl Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2017
SP - 483
EP - 488
BT - Proceedings - 2017 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2017 and 2017 Intl Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2017
T2 - 2nd International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2017 and Intl Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2017
Y2 - 25 May 2017 through 27 May 2017
ER -