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Research on the Influence of Load Characteristics of Distributed Power Grid on Electric Energy Metering

Received: 6 July 2018     Accepted: 15 August 2018     Published: 15 September 2018
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Abstract

As a large number of Distributed Generation Connecting Electric Grid put into operation, there are many impacts on power metering of power grid due to the problems of large fluctuation of load and frequent reverse of power, injecting DC component and harmonic component into power grid, generating voltage deviation, voltage fluctuation and flicker, and voltage unbalance. Measurement accuracy of traditional metering devices is difficult to guarantee. Therefore, the adaptability of traditional metering devices in the distributed power grid environment and the improvement of new technical methods to the Distributed Generation Connecting Electric Grid need to be studied. In this paper, through the analysis of the field operation data, it is proposed that the load fluctuation and frequent reverse of power can be solved by using the bidirectional and wide-range metering gateway meter; by analyzing the influence of the secondary transformer on the DC component, it is proposed that the influence of the DC component on the power metering can be almost ignored under the 0.5% DC component injection of the Distributed Generation Connecting Electric Grid. By analyzing zero flux technology, phase matching technology and high frequency sampling technology, a method to solve the problem of synchronous sampling of voltage and current under the influence of harmonics is proposed. By analyzing the point product and harmonic algorithm, the sampling rate requirement of accurate measurement of electric energy is proposed. A series of reasonable technical means and requirements are put forward in this paper, which greatly improves the power metering problem under the Distributed Generation Connecting Electric Grid.

Published in Journal of Electrical and Electronic Engineering (Volume 6, Issue 3)
DOI 10.11648/j.jeee.20180603.15
Page(s) 94-103
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Distributed Power, Wide Range, DC Component, Harmonics, Power Factor, Energy Metering

References
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Cite This Article
  • APA Style

    Li Pengcheng, Zhao Yantao, Cong Zhongxiao, Zhao Yunbin, Xu Hongwei, et al. (2018). Research on the Influence of Load Characteristics of Distributed Power Grid on Electric Energy Metering. Journal of Electrical and Electronic Engineering, 6(3), 94-103. https://doi.org/10.11648/j.jeee.20180603.15

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    ACS Style

    Li Pengcheng; Zhao Yantao; Cong Zhongxiao; Zhao Yunbin; Xu Hongwei, et al. Research on the Influence of Load Characteristics of Distributed Power Grid on Electric Energy Metering. J. Electr. Electron. Eng. 2018, 6(3), 94-103. doi: 10.11648/j.jeee.20180603.15

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    AMA Style

    Li Pengcheng, Zhao Yantao, Cong Zhongxiao, Zhao Yunbin, Xu Hongwei, et al. Research on the Influence of Load Characteristics of Distributed Power Grid on Electric Energy Metering. J Electr Electron Eng. 2018;6(3):94-103. doi: 10.11648/j.jeee.20180603.15

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  • @article{10.11648/j.jeee.20180603.15,
      author = {Li Pengcheng and Zhao Yantao and Cong Zhongxiao and Zhao Yunbin and Xu Hongwei and Su Yuhua},
      title = {Research on the Influence of Load Characteristics of Distributed Power Grid on Electric Energy Metering},
      journal = {Journal of Electrical and Electronic Engineering},
      volume = {6},
      number = {3},
      pages = {94-103},
      doi = {10.11648/j.jeee.20180603.15},
      url = {https://doi.org/10.11648/j.jeee.20180603.15},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeee.20180603.15},
      abstract = {As a large number of Distributed Generation Connecting Electric Grid put into operation, there are many impacts on power metering of power grid due to the problems of large fluctuation of load and frequent reverse of power, injecting DC component and harmonic component into power grid, generating voltage deviation, voltage fluctuation and flicker, and voltage unbalance. Measurement accuracy of traditional metering devices is difficult to guarantee. Therefore, the adaptability of traditional metering devices in the distributed power grid environment and the improvement of new technical methods to the Distributed Generation Connecting Electric Grid need to be studied. In this paper, through the analysis of the field operation data, it is proposed that the load fluctuation and frequent reverse of power can be solved by using the bidirectional and wide-range metering gateway meter; by analyzing the influence of the secondary transformer on the DC component, it is proposed that the influence of the DC component on the power metering can be almost ignored under the 0.5% DC component injection of the Distributed Generation Connecting Electric Grid. By analyzing zero flux technology, phase matching technology and high frequency sampling technology, a method to solve the problem of synchronous sampling of voltage and current under the influence of harmonics is proposed. By analyzing the point product and harmonic algorithm, the sampling rate requirement of accurate measurement of electric energy is proposed. A series of reasonable technical means and requirements are put forward in this paper, which greatly improves the power metering problem under the Distributed Generation Connecting Electric Grid.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Research on the Influence of Load Characteristics of Distributed Power Grid on Electric Energy Metering
    AU  - Li Pengcheng
    AU  - Zhao Yantao
    AU  - Cong Zhongxiao
    AU  - Zhao Yunbin
    AU  - Xu Hongwei
    AU  - Su Yuhua
    Y1  - 2018/09/15
    PY  - 2018
    N1  - https://doi.org/10.11648/j.jeee.20180603.15
    DO  - 10.11648/j.jeee.20180603.15
    T2  - Journal of Electrical and Electronic Engineering
    JF  - Journal of Electrical and Electronic Engineering
    JO  - Journal of Electrical and Electronic Engineering
    SP  - 94
    EP  - 103
    PB  - Science Publishing Group
    SN  - 2329-1605
    UR  - https://doi.org/10.11648/j.jeee.20180603.15
    AB  - As a large number of Distributed Generation Connecting Electric Grid put into operation, there are many impacts on power metering of power grid due to the problems of large fluctuation of load and frequent reverse of power, injecting DC component and harmonic component into power grid, generating voltage deviation, voltage fluctuation and flicker, and voltage unbalance. Measurement accuracy of traditional metering devices is difficult to guarantee. Therefore, the adaptability of traditional metering devices in the distributed power grid environment and the improvement of new technical methods to the Distributed Generation Connecting Electric Grid need to be studied. In this paper, through the analysis of the field operation data, it is proposed that the load fluctuation and frequent reverse of power can be solved by using the bidirectional and wide-range metering gateway meter; by analyzing the influence of the secondary transformer on the DC component, it is proposed that the influence of the DC component on the power metering can be almost ignored under the 0.5% DC component injection of the Distributed Generation Connecting Electric Grid. By analyzing zero flux technology, phase matching technology and high frequency sampling technology, a method to solve the problem of synchronous sampling of voltage and current under the influence of harmonics is proposed. By analyzing the point product and harmonic algorithm, the sampling rate requirement of accurate measurement of electric energy is proposed. A series of reasonable technical means and requirements are put forward in this paper, which greatly improves the power metering problem under the Distributed Generation Connecting Electric Grid.
    VL  - 6
    IS  - 3
    ER  - 

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Author Information
  • Guizhou Power Grid Co., Ltd., Guiyang, China

  • Wasion Group Co., Ltd., Changsha, China

  • Guizhou Power Grid Co., Ltd., Guiyang, China

  • Guizhou Power Grid Co., Ltd., Guiyang, China

  • Guizhou Power Grid Co., Ltd., Guiyang, China

  • Wasion Group Co., Ltd., Changsha, China

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