Beurteilung der Rotortemperatur von Windturbinengeneratoren

Details

Veröffentlichungs-Nr.

EP3599715

Aktenzeichen

EP18185883

Anmeldetag

26. Juli 2018

Veröffentlichung

24. August 2022

Erteilung

24. August 2022

Rechtsraum

EP

IPC

H02P9/00H02P29/66// H02P25/16

Abstract

It is described a method of assessing rotor temperature (Tpm) during operation of a permanent magnet synchronous machine (13), comprising a stator having at least one winding set (15, 17), in particular multiple winding sets, the method comprising: providing reference flux linkage values (psi*, 97) for different rotor and stator temperature values and current values (Is) of an operating winding set (15, 17); measuring an actual rotor temperature value (T1pm); measuring an actual stator temperature value (T1stator); measuring an actual current value (Is) of an operating winding set; deriving and storing reference flux linkage values for a given set of operating conditions (eq. (4) or (10), 93), in particular, by means of a reference run (95); deriving (eq. (6) or (9) or (11)) a reference flux linkage value (psi*, 97) (for the measured actual rotor and stator temperature values and the measured actual current value of the operating winding set) using the flux model; obtaining a voltage value (Vabc or Vdq*, 103) related to at least one winding set; deriving (eq. (5) or (10)) an estimated flux linkage value (107) based on the obtained voltage value (103) and/or current and/or machine parameters; deriving (eq. (7)) a rotor temperature offset based on the difference between the reference flux linkage value (97) for the measured actual rotor temperature value and the estimated flux linkage value (107); assessing the rotor temperature based on the rotor temperature offset.

Anmelder

Firma

Siemens Gamesa Renewable Energy A/S

Land

🇩🇰 Dänemark

Fachgebiete