Abstract
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 language | English |
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Pages (from-to) | 148-153 |
Number of pages | 6 |
Journal | Przeglad Elektrotechniczny |
Volume | 91 |
Issue number | 10 |
DOIs | |
Publication status | Published - Oct 1 2015 |
Externally published | Yes |
Keywords
- Frequency control
- Fuzzy proportional-integral
- Matlab/Simulink
- Microgrid
- Pulse-width modulation
- Voltage control
- Voltage-source inverter
ASJC Scopus subject areas
- Electrical and Electronic Engineering