Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2006-10-24
2006-10-24
Bui, Bryan (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C702S058000, C702S065000
Reexamination Certificate
active
07127364
ABSTRACT:
Disclosed herein is a method of compensating for the distorted secondary/ current of a current transformer. The method includes steps (a), (b) and (c). At step (a), the saturated section of the current transformer is detected. At step (b), fault current generated during a fault in a power system is represented using an AutoRegressive (AR) model, with the fault current being assumed to be a combination of a Direct Current (DC) offset component, a fundamental wave component and harmonic components. At step (c), coefficients of the AR model are estimated and the secondary current during saturation of the current transformer is compensated, based on the secondary current data sampled in the unsaturated section.
REFERENCES:
patent: 6160697 (2000-12-01), Edel
patent: 6479976 (2002-11-01), Edel
patent: 2005/0140352 (2005-06-01), Allain et al.
patent: WO 02/093183 (2002-11-01), None
M. Kezunovic et al; “Experimental Evaluation of EMTP-Based Current Transformer Models for Protective Relay Transient Study”;IEEE Transactions on Power Delivery,vol. 9, No. 1, Jan. 1994 (pp. 405-413).
Hyun Seung Ho
Kang Sang Hee
Kang Yong Cheol
Lee Dong Gyu
Bui Bryan
Myongji University
The Webb Law Firm
LandOfFree
Method of compensating for distorted secondary current of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of compensating for distorted secondary current of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of compensating for distorted secondary current of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3718759