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Surface permanent magnet vernier (SPMV) motors are gaining more and more attentions over recent years due to their high torque density. Generally, most researches focuses on their applications in low speed, high torque area, and the study on their high speed operation is rarely seen. In this paper, a SPMV motor with 12 slot, 20 rotor pole is evaluated for traction application. The optimal designed...
Linear vernier permanent magnet machines (LVPMMs) for direct-drive servo applications are attracting more and more attentions due to its high force density, easy maintenance, rapid dynamic response, and so on. This paper proposes an LVPMM structure, which has a similar secondary as that of a regular linear PM machine, while its primary mover is composed of three modules, and the modules are separated...
In recent years, high speed direct drive spindle motors are obtaining more and more attentions due to their compact structure, high efficiency, low vibration and noise. Compared with those of high speed machines used for electric vehicles (EV) and refrigerator compressors, the shaft of a spindle motor is always thicker to satisfy the mechanical support requirement. When the overall outer diameter...
This paper investigated a new type of operating mechanism in which the high voltage circuit breaker (HVCB) is driven by a permanent magnet synchronous motor (PMSM). This type of mechanism has high reliability due to its simple mechanical structure. In addition, the operating process of the mechanism is controllable. In this paper, the control technique of PMSM was introduced. A simulation model of...
In order to improve the operation reliability of high voltage circuit breaker (HVCB) and realize the full control ability in the opening and closing operating process, this paper studied a new type of motor drive operating mechanism. The control technique of the mechanism was introduced. A hardware system was designed, which consists of a HVCB, a converter, a PMSM and its control device based on DSP...
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