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Title: A Novel Method for Phasor Measurement Unit Sampling Time Error Compensation

This paper focuses on a novel method for successive approximation register analog to digital converter control in synchronized phasor measurement units (PMUs). To compensate for the sampling time error caused by the division remainder between the desirable sampling rate and the oscillator frequency, a variable sampling interval control method is presented by interlacing two integers under a proposed criterion. The frequency of the onboard oscillator is monitored in real-time using the pulse per second (PPS) timing reference from global positioning system. The sampling control is adaptively adjusted each second according to the latest estimated oscillator frequency. The “saw tooth” in phasor angle error and DC offset and spikes in frequency error can be effectively eliminated by applying the proposed method. The simulation and experiment results validate the effectiveness and accuracy of the proposed method, which is believed to be able to greatly improve the performance of PPS-disciplined synchronous sampling methods in PMUs.
Authors:
 [1] ;  [2] ; ORCiD logo [3] ;  [3] ;  [3] ;  [3] ;  [1] ;  [3]
  1. Hunan Univ. (China)
  2. General Electric, Philadelphia, PA (United States)
  3. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
IEEE Transactions on Smart Grid
Additional Journal Information:
Journal Volume: 9; Journal Issue: 2; Journal ID: ISSN 1949-3053
Publisher:
IEEE
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION
OSTI Identifier:
1474554

Yao, Wenxuan, Zhan, Lingwei, Liu, Yong, Till, Micah, Zhao, Jiecheng, Wu, Ling, Teng, Zhaosheng, and Liu, Yilu. A Novel Method for Phasor Measurement Unit Sampling Time Error Compensation. United States: N. p., Web. doi:10.1109/TSG.2016.2574946.
Yao, Wenxuan, Zhan, Lingwei, Liu, Yong, Till, Micah, Zhao, Jiecheng, Wu, Ling, Teng, Zhaosheng, & Liu, Yilu. A Novel Method for Phasor Measurement Unit Sampling Time Error Compensation. United States. doi:10.1109/TSG.2016.2574946.
Yao, Wenxuan, Zhan, Lingwei, Liu, Yong, Till, Micah, Zhao, Jiecheng, Wu, Ling, Teng, Zhaosheng, and Liu, Yilu. 2016. "A Novel Method for Phasor Measurement Unit Sampling Time Error Compensation". United States. doi:10.1109/TSG.2016.2574946. https://www.osti.gov/servlets/purl/1474554.
@article{osti_1474554,
title = {A Novel Method for Phasor Measurement Unit Sampling Time Error Compensation},
author = {Yao, Wenxuan and Zhan, Lingwei and Liu, Yong and Till, Micah and Zhao, Jiecheng and Wu, Ling and Teng, Zhaosheng and Liu, Yilu},
abstractNote = {This paper focuses on a novel method for successive approximation register analog to digital converter control in synchronized phasor measurement units (PMUs). To compensate for the sampling time error caused by the division remainder between the desirable sampling rate and the oscillator frequency, a variable sampling interval control method is presented by interlacing two integers under a proposed criterion. The frequency of the onboard oscillator is monitored in real-time using the pulse per second (PPS) timing reference from global positioning system. The sampling control is adaptively adjusted each second according to the latest estimated oscillator frequency. The “saw tooth” in phasor angle error and DC offset and spikes in frequency error can be effectively eliminated by applying the proposed method. The simulation and experiment results validate the effectiveness and accuracy of the proposed method, which is believed to be able to greatly improve the performance of PPS-disciplined synchronous sampling methods in PMUs.},
doi = {10.1109/TSG.2016.2574946},
journal = {IEEE Transactions on Smart Grid},
number = 2,
volume = 9,
place = {United States},
year = {2016},
month = {6}
}