EP 2100370 A1 20090916 - METHOD AND APPARATUS FOR CURRENT MEASUREMENT IN AN IN PARTICULAR POLYPHASE ELECTRICAL SYSTEM
Title (en)
METHOD AND APPARATUS FOR CURRENT MEASUREMENT IN AN IN PARTICULAR POLYPHASE ELECTRICAL SYSTEM
Title (de)
VERFAHREN UND VORRICHTUNG ZUR STROMMESSUNG IN EINEM INSBESONDERE MEHRPHASIGEN STROMNETZ
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR LA MESURE DU COURANT DANS UN RÉSEAU EN PARTICULIER POLYPHASÉ
Publication
Application
Priority
- EP 2007059984 W 20070920
- DE 102006052467 A 20061107
Abstract (en)
[origin: WO2008055741A1] The invention relates to a method for current measurement in an in particular polyphase electrical system, in which an electrical load (5) is energized as desired by at least one controllable switching element and a control unit produces drive signals which act on the at least one controllable switching element (4) in order to achieve the desired energization of the load (5), wherein clock patterns of the drive signals are associated with measurement windows for current measurement, in particular for measuring phase currents, and clock patterns are temporally offset in order to obtain measurement windows with a sufficient temporal length, wherein a minimum temporal shift comprises the sum of a minimum dead time of the switching element (4), a minimum settling time of the measuring amplifier circuit (12) and a minimum sampling time of the analogue-to-digital converter (11). The invention furthermore provides that the clock patterns are selected taking into consideration a phase selection for the current measurement. Provision may be made for the clock patterns to be selected taking into consideration the instantaneous rotary angle position of the phase vector. In addition, a corresponding apparatus is specified.
IPC 8 full level
H02P 27/08 (2006.01); H02M 7/5387 (2007.01); H02P 6/00 (2006.01)
CPC (source: EP KR US)
H02M 7/53875 (2013.01 - EP KR US); H02M 1/0009 (2021.05 - EP KR US); H02M 7/5395 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2008055741A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102006052467 A1 20080508; CN 101573862 A 20091104; CN 101573862 B 20130313; EP 2100370 A1 20090916; JP 2010508536 A 20100318; JP 2013068639 A 20130418; JP 5586230 B2 20140910; KR 101368707 B1 20140304; KR 20090083917 A 20090804; US 2010072980 A1 20100325; US 8421394 B2 20130416; WO 2008055741 A1 20080515
DOCDB simple family (application)
DE 102006052467 A 20061107; CN 200780048554 A 20070920; EP 07803566 A 20070920; EP 2007059984 W 20070920; JP 2009535650 A 20070920; JP 2013004897 A 20130115; KR 20097011533 A 20070920; US 51403507 A 20070920