Publication

Method for a switching loss reduction in PM drives

2012
Student Projects

Abstract

Energy saving becomes more and more important. Therefore different improvements have been made in motor design, electronic devices and software in order to increase the overall efficiency of electronic motor drives. Permanent Magnet Synchronous Motors (PMSM) are widely used in different applications requiring high precision and speed control. Using an inverter stage to create the 3-phase sinusoidal waveform currents causes losses in the switches. The aim of this project is to investigate a possible switching loss reduction in the inverter stage. Therefore a hysteresis current controller has to be realized to finally implement the switching loss reduction method in the software. Measurements of the efficiency gain and the current harmonics will have to be carefully analyzed and compared.

Official source

https://infoscience.epfl.ch/entities/publication/c24c6b88-2f9a-420a-9291-7ba4e63f3f8b

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2012
Student Projects

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c24c6b88-2f9a-420a-9291-7ba4e63f3f8b

About this result

Related concepts (32)

Electric motor

An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft. An electric generator is mechanically identical to an electric motor, but operates with a reversed flow of power, converting mechanical energy into electrical energy.

AC motor

An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings.

Brushless DC electric motor

A brushless DC electric motor (BLDC), also known as an electronically commutated motor, is a synchronous motor using a direct current (DC) electric power supply. It uses an electronic controller to switch DC currents to the motor windings producing magnetic fields that effectively rotate in space and which the permanent magnet rotor follows. The controller adjusts the phase and amplitude of the DC current pulses to control the speed and torque of the motor.

Related publications (9)

Method for a switching loss reduction in PM drives

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