EP 2949037 A1 20151202 - VARIABLE FREQUENCY DRIVE ACTIVE HARMONIC MITIGATION CONTROLS AND DIAGNOSTICS
Title (en)
VARIABLE FREQUENCY DRIVE ACTIVE HARMONIC MITIGATION CONTROLS AND DIAGNOSTICS
Title (de)
AKTIVE HARMONISCHE ABSCHWÄCHUNGSSTEUERUNG FÜR EINEN ANTRIEB MIT VARIABLER FREQUENZ UND DIAGNOSE DAFÜR
Title (fr)
COMMANDES ET DIAGNOSTICS D'ATTÉNUATION D'HARMONIQUES ACTIFS DE MÉCANISME D'ENTRAÎNEMENT À FRÉQUENCE VARIABLE
Publication
Application
Priority
- US 201361755197 P 20130122
- US 2014012431 W 20140122
Abstract (en)
[origin: WO2014116627A1] Variable frequency drive active harmonic mitigation controls and diagnostics are disclosed. Exemplary controls and diagnostics include operating a variable frequency drive including converting an AC input line voltage to a DC voltage, generating a motor drive signal using the DC voltage, and driving an electric motor with the motor drive signal. A harmonic mitigation signal is provided to the drive configured to at least partially mitigate harmonics during the operation of the drive. The harmonic mitigation signal is inhibited based upon presence of an error condition associated with the drive input. The inhibiting is terminated based upon the absence of the error condition. A diagnostic fault condition based upon a number of occurrences of the error condition.
IPC 8 full level
H02P 27/06 (2006.01); H02M 1/12 (2006.01)
CPC (source: EP)
H02M 1/12 (2013.01); H02P 27/06 (2013.01); H02P 29/032 (2016.02); H02P 29/50 (2016.02)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014116627 A1 20140731; CN 105075106 A 20151118; CN 105075106 B 20180116; EP 2949037 A1 20151202; EP 2949037 A4 20160323
DOCDB simple family (application)
US 2014012431 W 20140122; CN 201480017487 A 20140122; EP 14743944 A 20140122