초록 ▼

A method and device for controlling a synchronous permanent magnet motor with at least one phase, a coil and a rotor, wherein the method and device controls the powering of each motor phase, simultaneously measures the voltage of each motor phase, determines the rotor speed and the motor load from t

A method and device for controlling a synchronous permanent magnet motor with at least one phase, a coil and a rotor, wherein the method and device controls the powering of each motor phase, simultaneously measures the voltage of each motor phase, determines the rotor speed and the motor load from the measured voltage; determines a variable frequency from the speed and the load, samples at the variable frequency output signals from the voltage measurement of each phase; determines the rotor position from the sampled signals; and controls the powering of each motor phase as a function of the rotor position. The device is powered from an electric power source and comprises a power bridge powering the motor coil, a unit for controlling the powering of the coil, a circuit for measuring the voltage of each motor phase and means for sampling, at a variable frequency, signals from the measuring circuit.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for controlling a synchronous permanent magnet motor with at least one phase, a coil and a rotor, comprising the steps of:controlling the powering of each motor phase;simultaneously measuring the voltage of each motor phase;determining a rotor speed and a motor

[ What is claimed is:] [1.]1. A method for controlling a synchronous permanent magnet motor with at least one phase, a coil and a rotor, comprising the steps of:controlling the powering of each motor phase;simultaneously measuring the voltage of each motor phase;determining a rotor speed and a motor load from said measured voltage;determining a variable frequency from said speed and said load;sampling at said variable frequency output signals from the voltage measurement of each phase;determining the rotor position from the sampled signals; andcontrolling the powering of each motor phase as a function of the rotor position.