Design Implementation and Operation of an Education Laboratory-Scale Microgrid

Alper Nabi Akpolat,Ahmet Emin Kuzucuoglu,Erkan Dursun,Frede Blaabjerg,Yongheng Yang

doi:10.1109/access.2021.3072899

Abstract

To enable more wide-scale exploitation of renewable energy sources (RESs), distributed generations (DGs) as in microgrids have gained prominence recently. This study describes the design, modeling, implementation, and operation of a microgrid, in which a standalone hybrid power system has been installed for an education and research laboratory. The unstable nature of RESs results in power compatibility issues on DGs. Therefore, providing a decent power flow from renewables to loads is the scope of this paper. To satisfy defined load profiles and sustain the power with the desired level, the design and operation of power converters are a remarkable part of performing microgrids as well. For a robust microgrid structure, the presented control algorithm includes an energy management system (EMS) between renewables, batteries, and loads. Primarily, modeling of the system has been developed in MATLAB/Simulink environment. Additionally, case studies have been exemplified to further demonstrate the simulated system. Within this scope, certain load profiles not only have been fed but also power flow has been managed and analyzed to ensure effective and flexible operation with two different EMS cases. The real-time operation has been also provided to validate the system under various input and output conditions during a lab course.

Highlights

For the last century, global warming has reached a remarkable stage rapidly due to CO2 emission
A microgrid can be described as a part of power grid with distributed generations (DGs) based on renewable sources, power electronics converters, energy storage systems, and loads, which can run standalone, and interact with the
The multimeter demanded power for 0.20 s to measure some variables in the lesson, as can be seen in Fig. 10 (c) and (d)

Summary

Introduction

Global warming has reached a remarkable stage rapidly due to CO2 emission. DGs are expected to produce a smooth power, but it is not an effortless transaction due to their intermittent physical inputs [2]. To this end, robust and sophisticated control algorithms-aided stable microgrid applications are essential with help of robust operation of power electronic interfaces and energy management requirements [3]. Robust and sophisticated control algorithms-aided stable microgrid applications are essential with help of robust operation of power electronic interfaces and energy management requirements [3] Because of these unbalanced physical factors, to obtain maximum power as much as the system can, they are not preferred to operate without any converters which have control algorithms.

Objectives

Results

Conclusion