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In this paper, computer aided design (CAD) software of permanent magnet synchronous motor (PMSM) is drawn up. In the designed software, the interface between the ANSYS software and C ++ program is established so that the users of the software, who are strange to ANSYS, can make use of the ANSYS to calculate electromagnetic field of the PMSM. What the users do is only to input motor parameters, and...
Permanent magnet (PM) synchronous motor has the magnet devices with variable shapes and location, so the electromagnetic field in PM synchronous motor is more complex. Finite element method (FEM) provides an accurate means of determining the electromagnetic field distribution, with due account magnetic saturation characteristics. With the ANSYS, the distribution of electromagnetic field in PM synchronous...
The generator/motor is one of three key elements in a flywheel energy storage (FES) system, The objective of the flywheel system is the store and supply power in spacecraft applications and vehicles. Where a high speed brushless DC motor is chose. In high speed motor, the iron loss increases along with the alternant frequency of the magnetic field in the iron. A calculation model of iron losses of...
The structure and characteristic of the band-pass filter are analyzed, and parameters of components are calculated, and a Back-EMF zero-cross detection circuit for BLDC motor sensorless control is designed in this paper. A simplified scheme of the circuit is proposed. The simulation results and the experimental results of the filter and the circuit are presented.
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