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The Application and Development of LVDC Buildings in China

Author

Listed:
  • Jing Kang

    (Shenzhen Institute of Building Research Co., Ltd., Shenzhen 518049, China)

  • Bin Hao

    (Shenzhen Institute of Building Research Co., Ltd., Shenzhen 518049, China)

  • Yutong Li

    (Shenzhen Institute of Building Research Co., Ltd., Shenzhen 518049, China)

  • Hui Lin

    (Taihor Building Energy Technology Co., Ltd., Beijing 100084, China)

  • Zhifeng Xue

    (Taihor Building Energy Technology Co., Ltd., Beijing 100084, China)

Abstract

LVDC buildings use a low-voltage direct current (LVDC) distribution system for energy transmission and integrate photovoltaic (PV), battery energy storage (BES) and the utility grid as building energy resources. This technology can reduce energy loss in conversion to a certain extent and increase renewable energy compared with traditional AC distribution systems. Under the national goal of carbon peaking and carbon neutrality, LVDC buildings have been proven to be a new approach to energy conservation and emission reductions, and have been applied in engineering in China. However, the construction methods and integrated technologies of those projects are not clear, and technical barriers and policy constraints for the engineering application of LVDC buildings are not systematically discussed yet. This paper presents the latest study of LVDC building engineering applications the advantages and drawbacks of LVDC development in China. First, relevant policies and standards which support the development of LVDC building industries are summarized. More than 60 practical LVDC projects are investigated, and the application characteristics and the technology status of building types, and their capacity and design methods, etc., are analyzed. The attitudes of stakeholders toward LVDC buildings are surveyed to determine the policy direction according to the demands of this technology, with reference to building practitioners who intend to engage in LVDC projects.

Suggested Citation

  • Jing Kang & Bin Hao & Yutong Li & Hui Lin & Zhifeng Xue, 2022. "The Application and Development of LVDC Buildings in China," Energies, MDPI, vol. 15(19), pages 1-14, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:19:p:7045-:d:924863
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    References listed on IDEAS

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    1. Hallemans, L. & Ravyts, S. & Govaerts, G. & Fekriasl, S. & Van Tichelen, P. & Driesen, J., 2022. "A stepwise methodology for the design and evaluation of protection strategies in LVDC microgrids," Applied Energy, Elsevier, vol. 310(C).
    2. Tang, Rui & Wang, Shengwei, 2019. "Model predictive control for thermal energy storage and thermal comfort optimization of building demand response in smart grids," Applied Energy, Elsevier, vol. 242(C), pages 873-882.
    3. Glasgo, Brock & Azevedo, Inês Lima & Hendrickson, Chris, 2016. "How much electricity can we save by using direct current circuits in homes? Understanding the potential for electricity savings and assessing feasibility of a transition towards DC powered buildings," Applied Energy, Elsevier, vol. 180(C), pages 66-75.
    4. Novoa, Laura & Flores, Robert & Brouwer, Jack, 2019. "Optimal renewable generation and battery storage sizing and siting considering local transformer limits," Applied Energy, Elsevier, vol. 256(C).
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    Cited by:

    1. Gerber, Daniel L. & Nordman, Bruce & Brown, Richard & Poon, Jason, 2023. "Cost analysis of distributed storage in AC and DC microgrids," Applied Energy, Elsevier, vol. 344(C).
    2. Vitor Fernão Pires & Armando Pires & Armando Cordeiro, 2023. "DC Microgrids: Benefits, Architectures, Perspectives and Challenges," Energies, MDPI, vol. 16(3), pages 1-20, January.
    3. Yangfan Chen & Yu Zhang, 2023. "DC Transformers in DC Distribution Systems," Energies, MDPI, vol. 16(7), pages 1-19, March.

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