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Title: Voltage and current transducer harmonic sensitivity analysis

Abstract

This work presents the results of a study on the sensitivity of real power as a function of harmonic magnitudes and angles. These transducers are ones that are typical of those used, in combination with metering instruments, to measure the performance of variable-speed drives. Frequency response tests were performed on two different signal transducers (voltage and current) up to the 50th harmonic in accordance with Institute of Electrical and Electronics engineers (IEEE) Standard 519-1992. Results from these tests gave maximum magnitude percentage errors of {minus}2.2% (at 15th harmonic) and maximum phase shifts of +3.3 (at 50th harmonic) for voltage (at 120 V) and maximum percentage error of {minus}1.9% (at 2d harmonic) and maximum phase shift of {minus}4.3 for current (at 5 A). Using the percentage errors at 120 V and 5 A throughout the 60 Hz through 3,000 Hz range, in harmonic magnitudes and harmonic angles exhibited by the transducers, mathematical analysis was done on two sets of distorted signals and a sensitivity analysis was done to determine what would be the impact of the actual transducers` errors on the final calculation of real power. Variations of {minus}1.48% and {minus}1.60% were obtained. Then, assuming a maximum 5% change in currentmore » harmonic magnitudes and angles, a maximum real power percent variation of 0.02% and 2.47% were obtained for the same two sets of field-recorded voltage and current waveforms sets.« less

Authors:
 [1]
  1. Univ. of Florida, Gainesville, FL (United States)
Publication Date:
OSTI Identifier:
653229
Report Number(s):
CONF-980123-
Journal ID: ISSN 0001-2505; TRN: IM9827%%122
Resource Type:
Conference
Resource Relation:
Conference: 1998 ASHRAE winter meeting, San Francisco, CA (United States), 17-21 Jan 1998; Other Information: PBD: 1998; Related Information: Is Part Of ASHRAE transactions 1998. Volume 104, Part 1A: Technical papers; PB: 834 p.
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; LOAD ANALYSIS; HARMONICS; SENSITIVITY ANALYSIS; TRANSDUCERS; ELECTRIC POWER; POWER METERS; ACCURACY

Citation Formats

Domijan, A Jr. Voltage and current transducer harmonic sensitivity analysis. United States: N. p., 1998. Web.
Domijan, A Jr. Voltage and current transducer harmonic sensitivity analysis. United States.
Domijan, A Jr. 1998. "Voltage and current transducer harmonic sensitivity analysis". United States.
@article{osti_653229,
title = {Voltage and current transducer harmonic sensitivity analysis},
author = {Domijan, A Jr},
abstractNote = {This work presents the results of a study on the sensitivity of real power as a function of harmonic magnitudes and angles. These transducers are ones that are typical of those used, in combination with metering instruments, to measure the performance of variable-speed drives. Frequency response tests were performed on two different signal transducers (voltage and current) up to the 50th harmonic in accordance with Institute of Electrical and Electronics engineers (IEEE) Standard 519-1992. Results from these tests gave maximum magnitude percentage errors of {minus}2.2% (at 15th harmonic) and maximum phase shifts of +3.3 (at 50th harmonic) for voltage (at 120 V) and maximum percentage error of {minus}1.9% (at 2d harmonic) and maximum phase shift of {minus}4.3 for current (at 5 A). Using the percentage errors at 120 V and 5 A throughout the 60 Hz through 3,000 Hz range, in harmonic magnitudes and harmonic angles exhibited by the transducers, mathematical analysis was done on two sets of distorted signals and a sensitivity analysis was done to determine what would be the impact of the actual transducers` errors on the final calculation of real power. Variations of {minus}1.48% and {minus}1.60% were obtained. Then, assuming a maximum 5% change in current harmonic magnitudes and angles, a maximum real power percent variation of 0.02% and 2.47% were obtained for the same two sets of field-recorded voltage and current waveforms sets.},
doi = {},
url = {https://www.osti.gov/biblio/653229}, journal = {},
issn = {0001-2505},
number = ,
volume = ,
place = {United States},
year = {Thu Oct 01 00:00:00 EDT 1998},
month = {Thu Oct 01 00:00:00 EDT 1998}
}

Conference:
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