Simulation of load-sharing in standalone distributed generation system

2018 7th International Conference on Clean and Green Energy

能源学;生态环境科学

Ajewole, Titus O.^1 ; Craven, Robert P.M.^2 ; Kayode, Olakunle^3 ; Babalola, Olufisayo S.^4

Department of Electrical and Electronic Engineering, Osun State University, Osogbo, Nigeria^1

Centre for Energy Systems Research, Tennessee Technological University, Cookeville, United States^2

Department of Mechanical Engineering, Osun State University, Osogbo, Nigeria^3

Department of Electronic and Electrical Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria^4

关键词: Active and Reactive Power;    Distributed generation system;    Operational characteristics;    Point of common coupling;    Power generating units;    Power system development;    Renewable energies;    Simulation platform;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/154/1/012014/pdf
DOI  :  10.1088/1755-1315/154/1/012014

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper presents a study on load-sharing among the component generating units of a multi-source electric microgrid that is operated as an autonomous ac supply-mode system. Emerging trend in power system development permits deployment of microgrids for standalone or stand-by applications, thereby requiring active- and reactive power sharing among the discrete generating units contained in hybrid-source microgrids. In this study, therefore, a laboratory-scale model of a microgrid energized with three renewable energy-based sources is employed as a simulation platform to investigate power sharing among the power-generating units. Each source is represented by a source emulator that captures the real operational characteristics of the mimicked generating unit and, with implementation of real-life weather data and load profiles on the model; the sharing of the load among the generating units is investigated. There is a proportionate generation of power by the three source emulators, with their frequencies perfectly synchronized at the point of common coupling as a result of balance flow of power among them. This hybrid topology of renewable energy-based microgrid could therefore be seamlessly adapted into national energy mix by the indigenous electric utility providers in Nigeria.