Verfahren und Stromwandlungssystemsteuerungsvorrichtung zur Steuerung der Igbt-Sperrschichttemperatur bei Geringer Geschwindigkeit

Details

Veröffentlichungs-Nr.

EP2963799

Aktenzeichen

EP15175219

Anmeldetag

3. Juli 2015

Veröffentlichung

25. September 2019

Erteilung

25. September 2019

Rechtsraum

EP

IPC

H02M5/458H02M7/5387H02P27/08H02M1/32

Abstract

Methods, apparatus and computer readable mediums are presented for controlling a multiphase inverter in which third harmonic injection pulse width modulation (THIPWM) is used for generating inverter switching control signals at or above a non-zero threshold inverter output frequency, and high frequency injection discontinuous pulse width modulation (HFIDPWM) is used for inverter output frequencies below the threshold, where the threshold frequency corresponds to a threshold period less than or equal to the thermal impedance time constant of the inverter switching devices, and the injected high frequency component for HFIDPWM corresponds to a common mode period less than the thermal impedance time constant to mitigate thermal stress on the inverter switches and low speed inverter output derating.

Anmelder

Firma

Rockwell Automation Technologies, Inc.

Land

🇺🇸 USA

Fachgebiete