Process for determining the electrical parameters of asynchronous motors

Abstract

Abstract The measuring system allows the electrical parameters of the asynchronous motor to be determined when the motor is at a standstill, by determining the resistance of the motor and the current regulator supplying it when a given reference voltage is applied to the latter. The actual voltage of each motor strand and the stator resistance is determined via a linear regression method using the measured strand current and the given reference voltage, with the current/voltage characteristic used for determining the stray inductance and the rotor resistance in the linear upper range. The main inductance is determined from the current characteristic for a given voltage value and the corresponding stator flux characteristic, with repetition for different voltage values.

Inventors

• 👤 Michael Ruff

Bibliographic Details