Method for controlling the movement of an electric motor and system for controlling the movement of an electric motor

摘要

Method for controlling the movement of an electric motor, the electric motor by a total voltage (VT) proportional 5 to AC mains voltage (VAC) being fed, the method comprising the steps of: - performing a first measurement level (VT10 ) of the voltage (VAC) at a first time measurement (t10); - a second measurement level (VT20) of the voltage (VAC) at a second time measurement (t20); - calculating the value of the derivative of the measured voltage according to the first and second measurement instant (t10, t20) to obtain a value of an output voltage proportional network (VAC '); and - altering the value of the total voltage (VT) supplied to the motor in proportion to the voltage value proportional network (VAC), characterized in that the total voltage (VT) is altered depending on the difference between the value of a voltage proportional network (VAC ') calculated in a cycle present in the mains voltage (VAC) and the voltage value proportional network (VAC') calculated in the previous cycle of the mains voltage (VAC ).