Mitigation of Harmonics in Smart Microgrid Applications using Open Source Electronics

Smart Grids (SG) are integration of Artificial Intelligence (AI), Information and Communication Systems (ICT), and Electrical Energy Systems (EES). Throughout the presented research work we employ the programming of Open Source Electronics (OSE) and MOSFET Power Electronics to mitigate the harmonics in the SG/Microgrid. One of the most important problems faced by SGs is the problem of harmonics and harmonic distortion as a result of different non-linear loads. The purpose of this article is to reduce the harmonics and harmonic distortion using OSE and power MOSFET transistors which led to the effective inverters in limiting these harmonics resulting from different non-linear loads. The OSEs are easy to program, cost effective, and worldwide popular. A practical circuit was designed and compared with a theoretical simulation circuit using MATLAB program. The harmonic distortion limit was reached in the simulation circuit from 6.99% to 35.39% and in the practical circuit for the same values of non-linear loads from 9.8% to 39%. The results show the extent of convergence between the results of the practical circuit and the simulation circuit, as it will be presented later in this paper.

• Introduction

CIGRE WG 6.22 defines a microgrid as follows: “The minigrid is a system that contains for the distribution of electricity that contains new and renewable energy sources and traditional sources that have been distributed (such as distributed generators or electrical energy storage devices such as batteries or different loads that can be controlled) whether these loads are linear or non-linear and can be operated in places controlled and censored in an organized manner either by connecting it to the main (public) power grid or connecting it via the island.” [1]: