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This paper discusses the relationship between the amplitude of stator flux linkage and the torque of interior permanent magnet synchronous motor (IPMSM). In order to change the load angle and the torque accordingly, the amplitude of stator flux linkage should be kept in restricted range. It also explains how to control the amplitude of stator flux linkage to get maximum torque by using direct torque...
The YNvd transformer, which is one kind of three-phase three-winding balance transformer and has several properties, can be used in traction power supply system of electric railway. The strict relation of the primary and secondary in the electric transformation is derived with the impedance matching coefficient. The grounding conditions for YNvd transformer's neutral point and the characteristics...
Electric Vehicle (EV) is a dream for the human being city traffic without exhausting gas and with low noise. Permanent magnet synchronous motor (PMSW) became at the top of AC motors in high performance drive systems such as EV. This paper describes a full digital system to control a PMSM used in EV driving by TMS320F2812 DSP. Based on the analysis of the mathematical model of PMSM, the constant torque...
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