Fuzzy-PI Controllers for Voltage and Frequency Regulation of a PV-FC Based Autonomous Microgrid

Pramod Bhat Nempu, N. S. Jayalakshmi, Kevin Shaji, Mankanwal Singh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a study on PV and fuel cell (FC) based DC microgrid (MG). The PV array and FC stack act as energy sources and a hydrogen electrolyzer system is used for energy storage whenever surplus power is generated by the PV source. A supercapacitor (SC) bank is utilized for short-term energy storage to handle abrupt changes in load demand. This system is capable of supplying both DC and AC loads. The inverter is controlled by a voltage and frequency (VF) control scheme to regulate the deviations in frequency and voltage. PI controllers and fuzzy logic based self-tuning PI controllers (Fuzzy-PI) are used in the inverter control scheme to regulate VF deviations caused due to the changing AC loads and their effects on the system are analyzed and compared. With fuzzy logic based self-tuning PI controllers, the frequency and load current deviations are found to be minimized. Modelling and simulations are accomplished in MATLAB/Simulink software.

Original languageEnglish
Title of host publication2019 IEEE International Conference on Distributed Computing, VLSI, Electrical Circuits and Robotics, DISCOVER 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728137353
DOIs
Publication statusPublished - 08-2019
Event3rd IEEE International Conference on Distributed Computing, VLSI, Electrical Circuits and Robotics, DISCOVER 2019 - Manipal, India
Duration: 11-08-201912-08-2019

Publication series

Name2019 IEEE International Conference on Distributed Computing, VLSI, Electrical Circuits and Robotics, DISCOVER 2019 - Proceedings

Conference

Conference3rd IEEE International Conference on Distributed Computing, VLSI, Electrical Circuits and Robotics, DISCOVER 2019
CountryIndia
CityManipal
Period11-08-1912-08-19

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All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Decision Sciences (miscellaneous)
  • Information Systems and Management
  • Electrical and Electronic Engineering
  • Computational Mathematics
  • Control and Optimization

Cite this

Nempu, P. B., Jayalakshmi, N. S., Shaji, K., & Singh, M. (2019). Fuzzy-PI Controllers for Voltage and Frequency Regulation of a PV-FC Based Autonomous Microgrid. In 2019 IEEE International Conference on Distributed Computing, VLSI, Electrical Circuits and Robotics, DISCOVER 2019 - Proceedings [9008093] (2019 IEEE International Conference on Distributed Computing, VLSI, Electrical Circuits and Robotics, DISCOVER 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/DISCOVER47552.2019.9008093