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In this paper, a method using the balanced three-phase carrier frequency component signals is presented to estimate the initial rotor position of an interior permanent magnet synchronous motor (IPMSM). Taking advantage of the structural saliency in an IPMSM, the rotor spatial saliency position is expressed as a function of the envelope of the carrier frequency component currents in α-β frame. The...
In this paper, after analyzing water wave simulation algorithm in Computer Graphic, and discrete processing Second-class derivate with Taylor formula, general form of thermal conduction in temperature field was discretely processed in order to easier be described in computer. In order to visualize temperature field, a color template was built after analyzing color model of computer vision. Then, the...
This paper presents an initial rotor position estimation method for low saliency interior permanent-magnet synchronous motor (IPMSM) drives. The method injects signals into the stationary α-β frame of the motor and substitutes the injected signals into the stationary α-β frame model of the motor to solve for the rotor position. In particular, the method injects specific signals into the motor to eliminate...
A new sensorless control scheme for interior permanent magnet synchronous motor (IPMSM) drives is presented in this paper. In this method, high-frequency low-amplitude current is injected to the stationary alpha-axis and the corresponding high frequency voltage and the injected current are used to solve for rotor position based on the mathematical model of the motor in the stationary alpha-beta frame...
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