TY - JOUR
T1 - Design, Analysis, and Prototyping of a Novel-Structured Solid-Rotor-Ringed Line-Start Axial-Flux Permanent-Magnet Motor
AU - Mahmoudi, Amin
AU - Kahourzade, Solmaz
AU - Rahim, Nasrudin
AU - Hew, Wooi
AU - Uddin, Mohammad
PY - 2014
Y1 - 2014
N2 - This paper presents the design process, detailed analysis, and prototyping of a novel-structured line-start solid-rotor-based axial-flux permanent-magnet (AFPM) motor capable of autostarting with solid-rotor rings. The preliminary design is a slotless double-sided AFPM motor with four poles for high torque density and stable operation. Two concentric unilevel-spaced raised rings are added to the inner and outer radii of the rotor discs for smooth line-start of the motor. The design allows the motor to operate at both starting and synchronous speeds. The basic equations for the solid rings of the rotor of the proposed AFPM motor are discussed. Nonsymmetry of the designed motor led to its 3-D time-stepping finite-element analysis (FEA) via Vector Field Opera 14.0, which evaluates the design parameters and predicts the transient performance. To verify the design, a prototype 1-hp four-pole three-phase line-start AFPM synchronous motor is built and is used to test the performance in real time. There is a good agreement between experimental and FEA-based computed results. It is found that the prototype motor maintains high starting torque and good synchronization.
AB - This paper presents the design process, detailed analysis, and prototyping of a novel-structured line-start solid-rotor-based axial-flux permanent-magnet (AFPM) motor capable of autostarting with solid-rotor rings. The preliminary design is a slotless double-sided AFPM motor with four poles for high torque density and stable operation. Two concentric unilevel-spaced raised rings are added to the inner and outer radii of the rotor discs for smooth line-start of the motor. The design allows the motor to operate at both starting and synchronous speeds. The basic equations for the solid rings of the rotor of the proposed AFPM motor are discussed. Nonsymmetry of the designed motor led to its 3-D time-stepping finite-element analysis (FEA) via Vector Field Opera 14.0, which evaluates the design parameters and predicts the transient performance. To verify the design, a prototype 1-hp four-pole three-phase line-start AFPM synchronous motor is built and is used to test the performance in real time. There is a good agreement between experimental and FEA-based computed results. It is found that the prototype motor maintains high starting torque and good synchronization.
KW - Axial-flux permanent-magnet motor (AFPM)
KW - finite-element analysis (FEA)
KW - line-start
KW - solid rotor
UR - http://www.scopus.com/inward/record.url?scp=84887303810&partnerID=8YFLogxK
U2 - 10.1109/TIE.2013.2266082
DO - 10.1109/TIE.2013.2266082
M3 - Article
SN - 0278-0046
VL - 61
SP - 1722
EP - 1734
JO - IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
JF - IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
IS - 4
M1 - 6523097
ER -