Managing the distributed generation units in a microgrid using a fuzzy-PI controller

Azuki Abdul Salam, Azah Mohamed, Mohammad Abdul Hannan, Hussein Shareef

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


A power distribution system with distributed generations can operate as a microgrid under specific conditions. A microgrid can be operated under grid-connected and islanded modes seamlessly without disrupting the loads within the microgrid. This study analyzes the intelligent control of a microgrid with a pulse-width modulation-controlled voltage source inverter. Switching patterns are generated through a fuzzy proportional-integral (PI) controller. This study aims to develop a fuzzy-PI controller and compare its performance with that of a PI controller in controlling the voltage and frequency of a microgrid under disturbances in a Matlab/Simulink environment. Results show that the fuzzy-PI controller has higher capability, precision, and robustness than the PI controller in quickly restoring and stabilizing the microgrid. A simulation experiment is also performed to verify the greater validity and effectiveness of the microgrid equipped with the fuzzy-PI controller than with the PI controller. The developed fuzzy-PI controller can reduce the total harmonic distortion by 0.46%.

Original languageEnglish
Pages (from-to)148-153
Number of pages6
JournalPrzeglad Elektrotechniczny
Issue number10
Publication statusPublished - Oct 1 2015
Externally publishedYes


  • Frequency control
  • Fuzzy proportional-integral
  • Matlab/Simulink
  • Microgrid
  • Pulse-width modulation
  • Voltage control
  • Voltage-source inverter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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