Design for Low Voltage DC Distribution Network Testbed

  • Authors

    • Sung-Won Park
    • Jintae Cho
    • Juyong Kim
    • Sung-Yong Son
    https://doi.org/10.14419/ijet.v7i3.24.22660
  • LVDC, DC Distribution Network, Testbed, Power Quality, Monitoring.
  • Abstract

    Background/Objectives: A low voltage DC(LVDC) distribution network is gaining popularity as the next generation distribution network. However, LVDC network test environments are limited.

    Methods/Statistical analysis: A full-scale environment for LVDC distribution network test is preferable to evaluate various operation characteristics. However, it has limitations in implementation cost and operation methodologies. In this study, a 48V DC-based down-scale LVDC distribution network testbed is developed to enable the reproduction and observation of various phenomena of DC distribution networks.

    Findings: The proposed testbed provides flexible configuration capability by introducing S-connector and T-connector modules that can be controlled remotely, and real-time monitoring functions by using a data acquisition system connected to the nodes. Each connector can measure voltage and current with up to 250 kHz sampling frequency. The frequency analysis is also supported based on the collected data to evaluate power quality and characteristics of the distribution network.

    Improvements/Applications: Complicated phenomena of DC distribution systems can be easily implemented using the developed LVDC distribution network testbed.

     

  • References

    1. [1] A. Lana, A. Pinomaa, P. Nuutinen, T. Kaipia and J. Partanen, Control and monitoring solution for the LVDC power distribution network research site. IEEE First International Conference on DC Microgrids (ICDCM), 2015 June, pp. 7-10.

      [2] S. Lee. KEPCO's DC Power Distribution Efforts to Promote New Power Industry Markets. Journal of the Electric Webzine, pp.38-43.

      [3] Electromagnetic compatibility (EMC). part 1: General, Section 1: Application and interpretation of fundamental definitions and terms. IEC 61000-1-1.

      [4] D. Baskar. Power Quality Analysis and Power System Study in High Voltage System. Indian Journal of Science and Technology, 2016 Nov., VOL 8(32), PP.1-11.

      [5] T. Mariprasath, V. Kirubakaran. Real Time Harmonic Analysis on Rural Industries. Indian Journal of Science and Technology, 2016 Jan., VOL 9(2), PP.1-6.

      [6] P. Nuutinen, A. Pinomaa, J.-P. Ström, T. Kaipia, and P. Silventoinen. On Common-Mode and RF EMI in a Low-Voltage DC Distribution Network. IEEE Trans. SMART GRID. 2014 September, vol. 5, no. 5.

      [7] B.P. McGrath, D.G. Holmes. A general analytical method for calculating inverter DC-link current harmonics. IEEE Trans. Ind. 2009, 45, pp. 1851-1859.

      [8] A.D. Graham, The importance of a DC side harmonic study for a DC distribution system. In Proceedings of the 6th IET International Conference on Power Electronics, Machines and Drives (PEMD 2012), Bristol, UK, 2012 March, pp. 1–5.

      [9] M. Kong, H. Kim, S. Jen, S. Choi, S. Park. Electromagnetic Compatibility Assessment between Electric Railway and Radio Station. Korea Railway Association Conference Proceedings, 2012.

  • Downloads

  • How to Cite

    Park, S.-W., Cho, J., Kim, J., & Son, S.-Y. (2018). Design for Low Voltage DC Distribution Network Testbed. International Journal of Engineering & Technology, 7(3.24), 264-267. https://doi.org/10.14419/ijet.v7i3.24.22660

    Received date: 2018-12-01

    Accepted date: 2018-12-01