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Reactive Power Control Method for Grid-Tie Inverters Using Current Measurement of DG Output

  • Jihui Hwang
  • Seongil Lim
  • Myeonsong Choi
  • Myongsoo KimEmail author
Original Article

Abstract

The penetration ratio of distributed generation (DG) has increased due to the depletion of fossil fuels and the impacts of global warming. Thus, overvoltage at the point of common coupling may occur since reverse current flows with the installment of DG. To solve this problem, this paper presents a reactive power control method based on the measured current at the point of common coupling of DG. The purpose of this paper is not to provide methods to improve the voltage profiles of distribution lines through the reactive power control, but to maintain the voltage after the DG connection as before the connection. By applying the proposed method in this paper, it is possible to significantly improve the penetration ratio of DG by restricting the voltage rise. Case studies, using MATLAB simulation, are performed to verify the feasibility of the new reactive power control method.

Keywords

Distribution system operation Voltage control Distributed generation 

Notes

Acknowledgements

This work was supported by “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource by the Ministry of Trade, Industry and Energy, Republic of Korea. (No. 20174030201790)

References

  1. 1.
    Callaway L, Elberg R (2016) DER management technologies–DER analytics, DER management systems, and virtual power plant systems: global market analysis and forecasts. Navigant research, pp 1–2Google Scholar
  2. 2.
    Masters CL (2002) Voltage rise: the big issue when connecting embedded generation to long 11 kV overhead lines. Power Eng J 16(1):5–12MathSciNetGoogle Scholar
  3. 3.
    Ministry of trade, industry and trade (2015) The 7th basic plan for long-term electricity supply and demand (2015–2029)–DER expansion plan and Transmission system plan directionsGoogle Scholar
  4. 4.
    Senjyu T, Miyazato Y, Yona A, Urasaki N, Funabashi T (2008) Optimal distribution voltage control and coordination with distributed generation. IEEE Trans Pow Deliv 23(2):1236–1242Google Scholar
  5. 5.
    Auchariyamet S, Sirisumrannukul S (2010) Optimal daily coordination of volt/VAr control devices in distribution systems with distributed generators. In: Proceedings of the 45th international universities power engineering conference 2010 (UPEC 2010), 31 Aug.–3 Sept. 2010, IEEE, Cardiff, Wales, UK, pp 1–6Google Scholar
  6. 6.
    Keane A, Malley MO (2005) Optimal allocation of embedded generation on distribution networks. IEEE Trans Power Syst 20(3):1640–1646Google Scholar
  7. 7.
    Dent CJ, Ochoa LF, Harrison GP, Bialek JW (2010) Efficient secure AC OPF for network generation capacity assessment. IEEE Trans Power Syst 25(1):575–583Google Scholar
  8. 8.
    Franco JF, Rider MJ, Lavorato M, Romero R (2013) A mixed-integer LP model for the optimal allocation of voltage regulators and capacitors in radial distribution systems. Int J Electr Pow Energy Syst 48(I):123–130Google Scholar
  9. 9.
    Liu M, Canizares C, Huang W (2009) Reactive power and voltage control in distribution systems with limited switching operations. IEEE Trans Pow Syst 24(2):889–899Google Scholar
  10. 10.
    Gu Z, Rizy DT (1996) Neural networks for combined control of capacitor banks and voltage regulators in distribution systems. IEEE Trans Power Delivery 11(4):1921–1928Google Scholar
  11. 11.
    Roytelman I, Wee BK, Lugtu RL (1995) Volt/var control algorithm for modern distribution management system. IEEE Trans Power Syst 10(3):1454–1460Google Scholar
  12. 12.
    Liang R-H, Cheng C (2001) Dispatch of main transformer ULTC and capacitors in a distribution system. IEEE Trans Power Deliv 16(4):625–630Google Scholar
  13. 13.
    Augugliaro A, Dusonchet L, Favuzza S, Sanseverino ER (2004) Voltage regulation and power losses minimization in automated distribution networks by an evolutionary multi objective approach. IEEE Trans Power Syst 19(3):1516–1527Google Scholar
  14. 14.
    Harrisona GP, Piccolo A, Siano P, Wallacen AR (2008) Hybrid GA and OPF evaluation of network capacity for distributed generation connections. Electr Pow Syst Res 78(3):392–398Google Scholar
  15. 15.
    Yoshida H, Kawata K, Fukuyama Y, Takayama S, Nakanishi Y (2000) A particle swarm optimization for reactive power and voltage control considering voltage security assessment. IEEE Trans Power Syst 15(4):1232–1239Google Scholar
  16. 16.
    Liu Y, Zhang P, Qiu X (2000) Optimal reactive power and voltage control for radial distribution system. IEEE Pow Eng Soc Summer Meet 1:85–90Google Scholar
  17. 17.
    Manbachi M, Nasri M, Shahabi B, Farhangi H, Palizban A, Arzan-pour S, Moallem M, Lee D (2014) Real-time adaptive VVO/CVR topology using multi-agent system and IEC 61850-based communication protocol. IEEE Trans Sustain Energy 5(2):587–597Google Scholar
  18. 18.
    Farag HEZ, EI-Sadany EF, Seethapathy R (2012) A two ways communication-based distributed control for voltage regulation in smart distribution feeders. IEEE Trans Smart Grid 3(1):271–281Google Scholar
  19. 19.
    Bollen MHJ, Sannino A (2005) Voltage control with inverter-based distributed generation. IEEE Trans Power Deliv 20(1):519–520Google Scholar
  20. 20.
    Brenna M et al (2013) Automatic distributed voltage control algorithm in smart grids applications. IEEE Trans Smart Grid 4(2):877–885Google Scholar
  21. 21.
    Smith JW, Sunderman W, Dugan R, Seal B (2011) Smart inverter volt/var control functions for high penetration of PV on distribution systems. In: IEEE/PES Power Systems Conference and Exposition 2011 (PSCE 2011), Phoenix, USA, pp 1–6Google Scholar
  22. 22.
    Carvalho PMS, Correia PF, Ferreira LAFM (2008) Distributed reactive power generation control for voltage rise mitigation in distribution networks. IEEE Trans Power Syst 23(2):766–772Google Scholar
  23. 23.
    KEPCO Department of distribution planning, division of distribution technology (2016) Development of high-precision distribution intelligence device, pp 9–10Google Scholar
  24. 24.
    Jenkins N, Allan R, Corssley P, Kirschen D, Strbac G (2000) Embedded generation. IEEE Pow Energy Publ Ser 21:51–55Google Scholar
  25. 25.
    International Electrotechnical Commission (IEC), Geneva, Switzerland (2013) IEC/TR 61850-90-7 Technical report Edition 1.0Google Scholar

Copyright information

© The Korean Institute of Electrical Engineers 2019

Authors and Affiliations

  • Jihui Hwang
    • 1
  • Seongil Lim
    • 1
  • Myeonsong Choi
    • 2
  • Myongsoo Kim
    • 3
    Email author
  1. 1.Department of Electrical EngineeringKyungnam UniversityChangwonSouth Korea
  2. 2.Department of Electrical EngineeringMyongji UniversityYonginSouth Korea
  3. 3.Digital Solution LabKEPCO Research InstituteDaejeonSouth Korea

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