TY - JOUR
T1 - Design optimization and analysis of AFPM synchronousmachineincorporatingpower density, thermalanalysis, andback-EMF THD
AU - Kahourzade, Solmaz
AU - Gandomkar, Ali
AU - Mahmoudi, Amin
AU - Rahim, Nasrudin Abd
AU - Hew, Wooi Ping
AU - Uddin, Mohammad N.
PY - 2013/1/30
Y1 - 2013/1/30
N2 - This paper presents the design and analysis of an inside-out axial-flux permanent-magnet (AFPM) synchronous machine optimized by genetic algorithm (GA) based sizing equation, finite element analysis (FEA) and finite volume analysis (FVA). The preliminary design is a 2-pole-pair slotted TORUS AFPM machine. The designed motor comprises sinusoidal back-EMF waveforms, maximum power density and the best heat removal. The GA is used to optimize the dimensions of the machine in order to achieve the highest power density. Electromagnetic field analysis of the candidate machines from GA with various dimensions is then put through FEA in order to obtain various motor characteristics. Based on the results from GA and FEA, new candidates are introduced and then put through FVA for thermal behavior evaluation of the designed motors. Techniques like modifying the winding configuration and skewing the permanent magnets are also investigated to attain the most sinusoidal back-EMF waveform and reduced cogging torque. The performance of the designed 1 kW, 3-phase, 50 Hz, 4-pole AFPM synchronous machine is tested in simulation using FEA software. It is found that the simulation results fully agree with the designed technical specifications. It is also found from FVA results that the motor temperature reaches at highest temperature to 87±C at the rated speed and full load under steady state condition.
AB - This paper presents the design and analysis of an inside-out axial-flux permanent-magnet (AFPM) synchronous machine optimized by genetic algorithm (GA) based sizing equation, finite element analysis (FEA) and finite volume analysis (FVA). The preliminary design is a 2-pole-pair slotted TORUS AFPM machine. The designed motor comprises sinusoidal back-EMF waveforms, maximum power density and the best heat removal. The GA is used to optimize the dimensions of the machine in order to achieve the highest power density. Electromagnetic field analysis of the candidate machines from GA with various dimensions is then put through FEA in order to obtain various motor characteristics. Based on the results from GA and FEA, new candidates are introduced and then put through FVA for thermal behavior evaluation of the designed motors. Techniques like modifying the winding configuration and skewing the permanent magnets are also investigated to attain the most sinusoidal back-EMF waveform and reduced cogging torque. The performance of the designed 1 kW, 3-phase, 50 Hz, 4-pole AFPM synchronous machine is tested in simulation using FEA software. It is found that the simulation results fully agree with the designed technical specifications. It is also found from FVA results that the motor temperature reaches at highest temperature to 87±C at the rated speed and full load under steady state condition.
UR - http://www.scopus.com/inward/record.url?scp=84872872867&partnerID=8YFLogxK
U2 - 10.2528/PIER12120204
DO - 10.2528/PIER12120204
M3 - Article
AN - SCOPUS:84872872867
VL - 136
SP - 327
EP - 367
JO - Progress in Electromagnetics Research
JF - Progress in Electromagnetics Research
SN - 1070-4698
ER -