METHOD OF DETERMINING ROTOR FREQUENCY AND/OR ROTOR ANGLE OF A REACTIVE ELECTRICAL MACHINE, A CONTROL DEVICE AND A DRIVE SYSTEM Russian patent published in 2019 - IPC H02P6/16 H02P6/17 H02P21/18 H02P21/24

Abstract RU 2689117 C2

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used for control of reactive electrical machine without damping cell. Method of determination of rotor frequency (f) and/or angle (ϕ) of rotor of reactive electrical machine (2), which has stator with stator winding (10) and rotor with magnetically anisotropic rotor package, is carried out by applying a time sequence of voltage pulses (U_k) to stator winding (10), determination of response sequence of pulses of electric current (I_k) flowing in stator winding (10), which occurs due to voltage pulses (U_k) and successively induced flow (Φ_k) due to magnetically anisotropic rotor pack, wherein determination of rotor frequency (f) and/or angle (ϕ) of the rotor is carried out based on the measured response sequence of electric current (I_k) pulses using evaluation unit (3).

EFFECT: invention discloses a method of determining rotor frequency and/or rotor angle of a reactive electrical machine, a control device and a drive system.

6 cl, 7 dwg

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RU 2 689 117 C2

Authors

Sinner, Harald

Weigel, Thilo

Dates

2019-05-24—Published

2015-10-23—Filed