Electromagnetic and thermal analysis and design of a novel‐structured surface‐mounted permanent magnet motor with high‐power‐density

Abstract

A segmented-core (SC) structure has been widely used for high-power-density (HP) motors. However, the SC motor is associated with a number of problems due to the complexity of both the structure and the manufacturing process. To address these issues, a novel structure of a HP motor is proposed, referred to as the ring-coupled segmented-stator (RSS) model here. The proposed RSS can increase the reliability, the stability, and the manufacturability of motor. Furthermore, useful thermal analysis and design flow which take into account the RSS and asymmetric overhang structure of the motor are proposed in this research. The proposed lumped parameter thermal network (LPTN) for the thermal analysis shows a good agreement with experimental data within 9.8% difference. The proposed analysis and design method can be used for the diverse kinds of motor requiring the HP. The usefulness of the proposed RSS motor, the analysis method, and the design method are verified through the experiment in this research.

Electromagnetic and thermal analyses of surface‐mounted permanent magnet motor with flux‐absorbing structure for enhancing overhang effect

“…In earlier work [4], a thermal analysis model of a motor with an OS was established. Here, the LPTN of the SPM motor with the FAS, as shown in Fig.…”

Multi-Objective Optimization Design and Analysis of Double-Layer Winding Halbach Fault-Tolerant Motor

“…The main joint motors currently used in robots include stepping motor, direct current motor, and permanent magnet motor [3][4][5][6]. Among them, permanent magnet synchronous motor (PMSM) has been widely used because of the advantages of small size, large torque and high efficiency.…”

Performance comparisons of alternative permanent‐magnet motor designs for personal mobility‐assistive device applications

“…In summary, with their relatively smaller of sizes and easier of controls, the surface-mounted permanent-magnet motors (SPMs) [7] are more suitable than the interior permanent-magnet (PM) ones [8] for achieving the aforementioned objectives. To provide better options for accomplishing the specific system operational objectives within the physical constraints of exoskeletons, with their distinct electromagnetic and electromechanical features, optimisation designs of the SPMs along with the Vernier motor (VM) [9] and the flux-switching motor (FSM) [10] were included for the comparison investigations.…”