Electromagnetic and Thermal Analysis of Permanent-Magnet Synchronous Motors for Cooperative Robot Applications

Decoupling Control of Permanent Magnet Synchronous Motor With Support Vector Regression Inverse System Method

“…The contribution of input features to the construction of kernel space is estimated based on the mathematical model of analytical inverse system. Therefore, the feature weights of FW-SVR can be adjusted to a reasonable value which makes the kernel space feature of SVR inverse model more reasonable.The comparative simulation and experiment results demonstrate that: (1) The generalization ability of SVR inverse model is obviously affected by the feature weights while it can be improved by FW-SVR; (2) The FW-SVR inverse system method is feasible in decoupling control of PMSM because it does not only overcome the dependence on motor parameters, but also build an accurate inverse model.…”

“…P ERMANENT magnet synchronous motor (PMSM) has been widely used in electric vehicles, robots, compressors and other automation equipments because of its high power density, high efficiency, simple structure and good reliability [1]- [3]. PMSM, a strong nonlinear system, is multivariable and strongly coupled.…”

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

“…Among them, permanent magnet synchronous motor (PMSM) has been widely used because of the advantages of small size, large torque and high efficiency. In order to achieve the design requirements of high efficiency, lager torque, and low torque ripple of joint motors, the structure of PMSM has been further studied to improve the electromagnetic performance [7][8][9][10][11]. The spoke-type, tangential-type, U-shape and V-shape permanent magnet structures were compared in [7].…”

“…In [8], halbach PMSM could enhance torque and reduce loss because of the focused magnetic characteristic of Halbach array. In [9], the axial length of PMSM was optimized in order to reduce the loss, improve the efficiency and enhance heat dissipation effect. It was shown in [10] the fundamental wave amplitude of the air-gap magnetic flux density decreased with the increase of the opening width of the semi-closed slot, while the copper loss was increased to maintain the fixed output torque.…”

Design and Analysis of a Permanent Magnet Synchronous Motor Considering Axial Asymmetric Position of Rotor to Stator

“…However, since the space for the system is limited, using a SA type electric load is useful, as shown in Figure 2. The SA module may help simplify the system structure, improve reliability, and create a compact system [2]. Researchers are interested in the permanent magnet synchronous motor (PMSM) design for SA module to achieve high efficiency and high power density, which can be designed using optimal design techniques or the PM overhang to generate more magnetic flux in the air-gap [3][4][5][6][7][8][9][10][11][12][13][14][15][16].…”