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The flux weakening control is significant for the interior permanent magnet synchronous motor to obtain a wide constant power range which is required in the electric vehicle application. A representative flux weakening method is to design an outer voltage loop using the voltage reference and the voltage limit. If the characteristic current of the motor is less than the current limit, the deep flux...
This paper concerns the wide-speed-range operation of a 14-pole/18-slot fractional-slot concentrated-winding interior permanent magnet synchronous motor (FSCW-IPMSM), mainly focusing on the deep flux-weakening operating region where maximum torque per voltage (MTPV) control is applied. If the characteristic current is less than the rated current of the machine, MTPV trajectory control can be incorporated...
Traditionally, current vector controlled interior permanent magnet synchronous motors use two independent current regulators for flux-weakening operation. A novel flux-weakening control scheme which uses a single current regulator has been proposed recently. This paper compares the flux-weakening performance of an interior permanent magnet synchronous motor while running with the control schemes based...
Recent research suggest many flux weakening control techniques for interior permanent magnet synchronous motors. The most established one is the use of two current controllers to control the direct and quadrature axis current components such that the total flux linkage is reduced. If the characteristic current of the motor is less than the rated current of the system, maximum torque per voltage control...
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