Fuzzy PID Controller for PCC Voltage Harmonic Compensation in Islanded Microgrid

  • Minh-Duc Pham
  • Hong-Hee LeeEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10954)


In this paper, an intelligent control scheme based on fuzzy proportional-integral-derivative controller (FPIDC) is proposed for PCC voltage harmonic compensation in islanded microgrid. The proposed FPIDC method is composed of a closed-loop control of the virtual impedance at harmonic frequency to absorb the harmonic current from the nonlinear load, control harmonic sharing between distributed generators. As a result, the PCC voltage quality is improved with the total harmonic distortion (THD) significantly reduced. With the feedback of the PCC voltage and well-designed fuzzy controller, the uncertainty and unstable value of proportional-integral-derivative (PID) parameters are removed by adaptive tuning. Therefore, the PCC voltage quality is improved smoothly, and the system becomes more stable even load condition is changed. Compared with the traditional PID controller, the dynamic response and stability of the microgrid system are improved with the proposed FPIDC. The comparison and analysis of the proposed control with the conventional control are carried out to verify the superiority of the proposed method.


Islanded microgrid Fuzzy logic control Voltage harmonic compensation Secondary control 



This work was partly supported by the National Research Foundation of Korea Grant funded by the Korean Government (NRF-2015R1D1A1A09058166) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) (No. 20174030201490).


  1. 1.
    He, J., Li, Y.W., Blaabjerg, F.: An enhanced islanding microgrid reactive power, imbalance power, and harmonic power sharing scheme. IEEE Trans. Power Electron. 30(6), 3389–3401 (2015)CrossRefGoogle Scholar
  2. 2.
    Mahmood, H., Michaelson, D., Jiang, J.: Accurate reactive power sharing in an islanded microgrid using adaptive virtual impedances. IEEE Trans. Power Electron. 30(3), 1605–1617 (2015)CrossRefGoogle Scholar
  3. 3.
    Olivares, D.E., et al.: Trends in microgrid control. IEEE Trans. Smart Grid 5(4), 1905–1919 (2014)CrossRefGoogle Scholar
  4. 4.
    Guerrero, J.M., Matas, J., De Vicuña, L.G., Castilla, M.: Wireless-control strategy for parallel operation of distributed generation inverters. IEEE Trans. Ind. Electron. 53(5), 1461–1470 (2006)CrossRefGoogle Scholar
  5. 5.
    Lee, T.L., Hu, S.H.: Discrete frequency-tuning active filter to suppress harmonic resonances of closed-loop distribution power systems. IEEE Trans. Power Electron. 26(1), 137–148 (2011)CrossRefGoogle Scholar
  6. 6.
    Lee, T.L., Li, J.C., Cheng, P.T.: Discrete frequency tuning active filter for power system harmonics. IEEE Trans. Power Electron. 24(5), 1209–1217 (2009)CrossRefGoogle Scholar
  7. 7.
    Sreekumar, P., Khadkikar, V.: A new virtual harmonic impedance scheme for harmonic power sharing in an islanded microgrid. IEEE Trans. Power Deliv. 31(3), 936–945 (2016)CrossRefGoogle Scholar
  8. 8.
    Moussa, H., Shahin, A., Martin, J.-P., Nahid-Mobarakeh, B., Pierfederici, S., Moubayed, N.N.: Harmonic power sharing with voltage distortion compensation of droop controlled islanded microgrids. IEEE Trans. Smart Grid, 1 (2017)Google Scholar
  9. 9.
    Li, Y., Tong, S., Li, T.: Hybrid fuzzy adaptive output feedback control design for uncertain MIMO nonlinear systems with time-varying delays and input saturation. IEEE Trans. Fuzzy Syst. 24(4), 841–853 (2016)CrossRefGoogle Scholar
  10. 10.
    Pham, Minh-Duc, Lee, Hong-Hee: Fuzzy PID controller for reactive power accuracy and circulating current suppression in islanded microgrid. In: Huang, De-Shuang, Hussain, Abir, Han, Kyungsook, Gromiha, M.Michael (eds.) ICIC 2017. LNCS (LNAI), vol. 10363, pp. 241–252. Springer, Cham (2017). Scholar
  11. 11.
    Guerrero, J.M., De Vicuña, L.G., Matas, J., Castilla, M.: Output impedance design of parallel-connected UPS inverters with wireless load-sharing control. IEEE Trans. Ind. Electron. 52(4), 1126–1135 (2005)CrossRefGoogle Scholar
  12. 12.
    Cha, H., Vu, T.-K., Kim, J.-E.: Design and control of proportional-resonant controller based photovoltaic power conditioning system. In: 2009 IEEE Energy Conversion Congress and Exposition, pp. 2198–2205 (2009)Google Scholar
  13. 13.
    Rodríguez, P., Luna, A., Candela, I., Mujal, R., Teodorescu, R., Blaabjerg, F.: Multiresonant frequency-locked loop for grid synchronization of power converters under distorted grid conditions. IEEE Trans. Ind. Electron. 58(1), 127–138 (2011)CrossRefGoogle Scholar
  14. 14.
    Sahu, R.K., Panda, S., Yegireddy, N.K.: A novel hybrid DEPS optimized fuzzy PI/PID controller for load frequency control of multi-area interconnected power systems. J. Process Control 24(10), 1596–1608 (2014)CrossRefGoogle Scholar
  15. 15.
    Gude, J.J., Kahoraho, E.: Modified Ziegler-Nichols method for fractional PI controllers. In: Proceedings of the 15th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2010 (2010)Google Scholar

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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Electrical EngineeringUniversity of UlsanUlsanSouth Korea

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