METHOD AND ASSEMBLY FOR OPERATING SYNCHRONOUS MOTORS

摘要

A method is disclosed for operating a synchronous machine by way of a three-phase AC power controller, which is connected to a three-phase network. The embodiment of the method includes determining the phase difference between the magnet-wheel voltage of the synchronous machine and the network voltage of the three-phase network; determining the rotational speed of the rotor of the synchronous machine; determining the phase position of the three-phase network; determining a decision characteristic number on the basis of a stored data table calculated in advance, which data table associates a decision characteristic number with value triples of phase difference, phase position, and rotational speed; and determining at least one switching time point on the basis of the decision characteristic number.

主权项

1. A method for operating a synchronous machine by way of at least one three-phase power controller connected to a three-phase network, the method comprising:
determining a phase difference between magnet-wheel voltage of the synchronous machine and network voltage of the three-phase network; determining a rotational speed of a rotor of the synchronous machine; determining a position of the three-phase network; determining a decision characteristic number using a stored data table, calculated in advance, the stored data table associating a decision characteristic number with value triples including phase difference, phase position and rotational speed; and determining at least one switching time point on the basis of the determined decision characteristic number, wherein the at least one power controller is activated at at least one determined switching time point.