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Title: Method and apparatus for precision phasor measurements through a medium-voltage distribution transformer

Abstract

A means and method for measuring precise voltage phasors on medium-voltage alternating current (AC) distribution grids, using existing distribution transformers as voltage sensors. The errors introduced by the distribution transformers are minimized by taking into account the transformer's vector impedance, combined with measuring the transformer secondary current phasor. The invention includes a means and a method of measuring the distribution transformer's vector impedance.

Inventors:
;
Issue Date:
Research Org.:
Power Standards Lab Inc, Alameda, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1475157
Patent Number(s):
10067167
Application Number:
14/808,439
Assignee:
Power Standards Lab Inc, Alameda, CA
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
DOE Contract Number:  
AR0000340
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Jul 24
Country of Publication:
United States
Language:
English

Citation Formats

McEachern, Alexander, and Hofmann, Ronald. Method and apparatus for precision phasor measurements through a medium-voltage distribution transformer. United States: N. p., 2018. Web.
McEachern, Alexander, & Hofmann, Ronald. Method and apparatus for precision phasor measurements through a medium-voltage distribution transformer. United States.
McEachern, Alexander, and Hofmann, Ronald. Tue . "Method and apparatus for precision phasor measurements through a medium-voltage distribution transformer". United States. https://www.osti.gov/servlets/purl/1475157.
@article{osti_1475157,
title = {Method and apparatus for precision phasor measurements through a medium-voltage distribution transformer},
author = {McEachern, Alexander and Hofmann, Ronald},
abstractNote = {A means and method for measuring precise voltage phasors on medium-voltage alternating current (AC) distribution grids, using existing distribution transformers as voltage sensors. The errors introduced by the distribution transformers are minimized by taking into account the transformer's vector impedance, combined with measuring the transformer secondary current phasor. The invention includes a means and a method of measuring the distribution transformer's vector impedance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {9}
}

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Works referenced in this record:

Micro-synchrophasors for distribution systems
conference, February 2014