Online optimal power flow based on HPSO-TVAC coordinates with centralized BESS and LRT control to stabilize voltage in a PV-supplied microgrid

Khoa Le Dinh, Yasuhiro Hayashi

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

Abstract

This paper proposes an online optimal active power flow for local battery energy storage systems (BESS), which are installed at feeder nodes, based on self-organizing hierarchical particle swarm optimization with time-varying acceleration coefficients to minimize power transmission loss in a middle voltage 6.6 KV photovoltaic-supplied microgrid. In addition, a central BESS, which is installed at an interconnection point, minimizes power flow from the utility to the microgrid through the interconnection point, and coordinates with a load ratio control transformer to stabilize local node voltages in the microgrid. The central BESS is designed to operate as a distribution static compensator when batteries in the central battery energy storage system are fully charged or fully discharged. Loop and radial structures of MG are studied to evaluate the effective of proposed method. MATLAB/Simulink is used to simulate the microgrid model. A conventional control method and the proposed control method are compared to evaluate its effectiveness.

Original languageEnglish
Title of host publication2013 4th IEEE/PES Innovative Smart Grid Technologies Europe, ISGT Europe 2013
DOIs
Publication statusPublished - 2013 Dec 1
Event2013 4th IEEE/PES Innovative Smart Grid Technologies Europe, ISGT Europe 2013 - Lyngby, Denmark
Duration: 2013 Oct 62013 Oct 9

Publication series

Name2013 4th IEEE/PES Innovative Smart Grid Technologies Europe, ISGT Europe 2013

Conference

Conference2013 4th IEEE/PES Innovative Smart Grid Technologies Europe, ISGT Europe 2013
CountryDenmark
CityLyngby
Period13/10/613/10/9

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Keywords

  • Battery energy storage system
  • Distribution static compensator
  • Optimal power flow
  • Self-organizing hierarchical PSO with TVAC
  • Voltage control

ASJC Scopus subject areas

  • Computer Science (miscellaneous)

Cite this

Dinh, K. L., & Hayashi, Y. (2013). Online optimal power flow based on HPSO-TVAC coordinates with centralized BESS and LRT control to stabilize voltage in a PV-supplied microgrid. In 2013 4th IEEE/PES Innovative Smart Grid Technologies Europe, ISGT Europe 2013 [6695465] (2013 4th IEEE/PES Innovative Smart Grid Technologies Europe, ISGT Europe 2013). https://doi.org/10.1109/ISGTEurope.2013.6695465