The invention relates to a frequency converter (1), comprising a load bridge (2) and also a control (3) of the load bridge, for supplying electricity between the load bridge (2) and an electric machine (4) connected to the load bridge; which frequency converter comprises a determination (5) for at least one electrical parameter of the aforementioned electric machine, and which frequency converter comprises a determination (6) for the position of the rotor of the electric machine. According to the invention a load bridge (2) is fitted to supply a first alternating electricity excitation signal (7) to the aforementioned electric machine (4), which first alternating electricity excitation signal is formed in relation to the electrical angle (18) of the electric machine. The frequency converter is fitted to determine a first alternating electricity response signal (9,16) corresponding to the aforementioned first alternating electricity excitation signal (7), and the position of the rotor is determined on the basis of the first alternating electricity response signal (9,16).
DETERMINATION OF THE POSITION OF THE ROTOR OF AN ELECTRIC MACHINE
BESTIMMUNG DER POSITION DES ROTORS EINER ELEKTRISCHEN MASCHINE
DÉTERMINATION DE LA POSITION DU ROTOR D'UNE MACHINE ÉLECTRIQUE
2018-05-30
Patent
Elektronische Ressource
Englisch
DETERMINATION OF THE POSITION OF THE ROTOR OF AN ELECTRIC MACHINE
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