TY - GEN
T1 - Automated bi-objective design optimization of multi-MW direct-drive PM machines using CE-FEA and differential evolution
AU - Sizov, Gennadi Y.
AU - Zhang, Peng
AU - Ionel, Dan M.
AU - Demerdash, Nabeel A.O.
AU - Rosu, Marius
PY - 2011
Y1 - 2011
N2 - Design optimization of a multi-MW direct-drive PMAC machine based on computationally efficient-FEA (CE-FEA) and multi-objective differential evolution (DE) algorithm is presented in this paper. The CE-FEA based models allow ultra-fast analysis and design of synchronous electric machinery. In this work, a DE algorithm is used to vary a large number of stator and rotor parameters to optimize multiple objectives, such as average torque, efficiency, the cogging and the ripple torques that are evaluated using CE-FEA. The method is demonstrated on a motor for a direct-drive rated at 20 MW and 150 r/min. The following four case-study machines are optimized: 1) fractional-slot embedded surface-PM, 2) fractional-slot interior-PM, 3) integer-slot embedded surface-PM, and 4) integer-slot interior-PM. Design optimization of interior-PM machines includes an additional search for an optimum operating torque angle corresponding to the maximum torque per ampere (MTPA) condition.
AB - Design optimization of a multi-MW direct-drive PMAC machine based on computationally efficient-FEA (CE-FEA) and multi-objective differential evolution (DE) algorithm is presented in this paper. The CE-FEA based models allow ultra-fast analysis and design of synchronous electric machinery. In this work, a DE algorithm is used to vary a large number of stator and rotor parameters to optimize multiple objectives, such as average torque, efficiency, the cogging and the ripple torques that are evaluated using CE-FEA. The method is demonstrated on a motor for a direct-drive rated at 20 MW and 150 r/min. The following four case-study machines are optimized: 1) fractional-slot embedded surface-PM, 2) fractional-slot interior-PM, 3) integer-slot embedded surface-PM, and 4) integer-slot interior-PM. Design optimization of interior-PM machines includes an additional search for an optimum operating torque angle corresponding to the maximum torque per ampere (MTPA) condition.
KW - design optimization
KW - electromagnetic analysis
KW - electromagnetic modeling
KW - finite element methods
KW - permanent magnet machines
KW - permanent magnet motors
KW - synchronous machines
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UR - http://www.scopus.com/inward/citedby.url?scp=81855220387&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2011.6064267
DO - 10.1109/ECCE.2011.6064267
M3 - Conference contribution
AN - SCOPUS:81855220387
SN - 9781457705427
T3 - IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings
SP - 3672
EP - 3678
BT - IEEE Energy Conversion Congress and Exposition
T2 - 3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011
Y2 - 17 September 2011 through 22 September 2011
ER -
