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Frequency and Voltage Control Strategies of the Jeju Island Power System Based on MMC-HVDC Systems

  • Quach, Ngoc-Thinh (Department of Electrical Engineering, Jeju National University) ;
  • Chae, Sang Heon (Department of Electrical Engineering, Jeju National University) ;
  • Song, Seung-Ho (Department of Electrical Engineering, Kwangwoon University) ;
  • Kim, Eel-Hwan (Department of Electrical Engineering, Jeju National University)
  • Received : 2017.03.22
  • Accepted : 2017.08.12
  • Published : 2018.01.20

Abstract

At present, one of two LCC-HVDC systems is responsible for controlling the grid frequency of the Jeju Island Power System (JIPS). The grid voltage is regulated by using STATCOMs. However, these two objectives can be achieved in one device that is called by a modular multilevel converter-high voltage direct current (MMC-HVDC) system. Therefore, this paper proposes frequency and voltage control strategies for the JIPS based on a MMC-HVDC system. In this case, the ancillary frequency and voltage controllers are implemented into the MMC-HVDC system. The modelling of the JIPS is done based on the parameters and measured data from the real JIPS. The simulation results obtained from the PSCAD/EMTDC simulation program are confirmed by comparing them to measured data from the real JIPS. Then, the effect of the MMC-HVDC system on the JIPS will be tested in many cases of operation when the JIPS operates with and without STATCOMs. The objective is to demonstrate the effectiveness of the proposed control strategy.

Keywords

References

  1. E.-H.Kim, J.-H.Kim, S.-H.Kim, J.Choi, K.Y. Lee, and H.-C.Kim, “Impact analysis of wind farms in the Jeju island power system,” IEEE Syst.J., Vol. 6, No. 1, pp. 134-139, Mar. 2012. https://doi.org/10.1109/JSYST.2011.2163017
  2. F.Zhang, K.Cho, J.Choi, Y.-M.Lee, and K.Y. Lee, "A study on wind speed prediction using artificial neural network at Jeju island in Korea II," 2011 IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS), Seoul, South Korea, pp. 1-4,2011.
  3. Jeju Special Self-Governing Province, Policy report, Carbon free island Jeju by 2030, May 2012.
  4. S. M. Muyeen, R. Takahashi, and J. Tamura, “Operation and control of HVDC-connected offshore wind farm,” IEEE Trans. Sustain. Energy, Vol. 1, No. 1, pp. 30-37, Apr. 2010. https://doi.org/10.1109/TSTE.2010.2041561
  5. H. Liu and Z. Chen, “Contribution of VSC-HVDC to frequency regulation of power systems with offshore wind generation,” IEEE Trans. Energy Convers., Vol. 30, No. 3, pp. 918-926, Sep. 2015. https://doi.org/10.1109/TEC.2015.2417130
  6. D. Elliott, K. R. W. Bell, S. J. Finney, R. Adapa, C. Brozio, J. Yu, and K. Hussain, “A comparison of AC and HVDC options for the connection of offshore wind generation in Great Britain,” IEEE Trans. Power Del., Vol. 31, No. 2, pp. 798-809, Apr. 2016. https://doi.org/10.1109/TPWRD.2015.2453233
  7. M. Saeedifard and R. Iravani, “Dynamic performance of a modular multilevel back-to-back HVDC system,” IEEE Trans.Power Del., Vol. 25, No. 4, pp. 2903-2912, Oct. 2010. https://doi.org/10.1109/TPWRD.2010.2050787
  8. Q.Tu, Z.Xu, and L.Xu, "Reduced switching-frequency modulation and circulating current suppression for modular multilevel converters," IEEE Trans.Power Del., Vol. 26, No.3, pp. 2009-2017, Jul.2011.
  9. M.Guan and Z.Xu, “Modeling and control of a modular multilevel converter-Based HVDC system under unbalanced grid conditions,” IEEE Trans.Power Electron., Vol. 27, No. 12, pp. 4858-4867, Dec. 2012. https://doi.org/10.1109/TPEL.2012.2192752
  10. N.-T. Quach, J.-H. Ko, D.-W. Kim, and E.-H. Kim, “An application of proportional-resonant controller in MMC-HVDC system under unbalanced voltage conditions,” J. Electr. Eng. Technol., Vol. 9, No. 5, pp. 1746-1752, Sep. 2014. https://doi.org/10.5370/JEET.2014.9.5.1746
  11. N.-T. Quach, D.-H. Lee, H.-C. Kim, and E.-H. Kim, "Application of MMC-HVDC system for regulating grid voltage based on Jeju Island power system,ˮ Trans. Korean Inst. Power Electron., Vol. 19, No. 6, pp. 494-502, Dec. 2014. https://doi.org/10.6113/TKPE.2014.19.6.494
  12. N.-T. Quach, D. H. Lee, H.-C. Kim, and E.-H. Kim, "Analyzing stability of Jeju Island power system with modular multilevel converter based HVDC system,ˮ J. Electr. Eng. Technol., Vol. 10, No. 1, pp. 47-55, Jan. 2015. https://doi.org/10.5370/JEET.2015.10.1.047
  13. J. Lyu, X. Cai, and M. Molinas, “Frequency domain stability analysis of MMC-based HVDC for wind farm integration,” IEEE J. Emerg. Sel. Topics Power Electron., Vol. 4, No. 1, pp. 141-151, Mar. 2016. https://doi.org/10.1109/JESTPE.2015.2498182
  14. R. Vidal-Albalate, H. Beltran, A. Rolan, E. Belenguer, R. Pena, and R. Blasco-Gimenez, “Analysis of the performance of MMC under fault conditions in HVDC-based offshore wind farms,” IEEE Trans. Power Del., Vol. 31, No. 2, pp. 839-847, Apr. 2016. https://doi.org/10.1109/TPWRD.2015.2468171