A Dynamic On-Grid Solar Power System Using a Bi-Directional Counter Meter

International Journal of Research and Innovation in Applied Science (IJRIAS) | Volume VI, Issue VIII, August 2021|ISSN 2454-6194

A Dynamic On-Grid Solar Power System Using a Bi-Directional Counter Meter

Mukthar Bidemi Opeloyeru, Prof. Dr. R. Nejat Tuncay.
Faculty of Engineering, Power Electronics and Clean Energy System Department
Istanbul Okan University, Turkey.

Abstract – Recent advancement in technology has led to a remarkable increase in solar cell efficiency while causing a reduction in the expenses of PV systems and the adoption of PV systems as a reliable source of energy globally. To further reduce the entry barrier of PV systems, most governments have introduced several incentives including a Net-metering tariff which uses a bi-directional meter for grid-connected PV systems. This research work focuses on the design and simulation of a 2kW grid-connected system with an integrated bi-directional metering unit. The design, modelling, simulation, and analysis of the developed system were done using the Simulink interface of the MATLAB suite. The system essentially consisted of a “Perturb and Observe” MPPT system, a phase-locked loop (PLL), an LCL filter, and a Mosfet-based single phase inverter system. In comparison to existing studies, the research features an integrated bi-directional metering unit to give a more practical overview of the implementation and operation of the counter-based bi-directional meters and net metering. The simulation result obtained from running the model at different levels of irradiance and the response of integrated bidirectional meter indicated a functional system capable of metering energy in both modes.

Keywords – Bi-directional Meter, Grid Connected PV system, LCL filter, PID Controller, MPPT, P&O Algorithm., MATLAB/SIMULINK.

I.INTRODUCTION

The growing environmental concern over the usage of fossil-based energy sources and the relative advancement in science and technology has consequently lead to the widespread call for the adoption of renewable energy sources for energy generation.

Renewable energy has been adjudged to be a promising alternative to fossil as they are relatively cleaner and more permanent. The common renewable energy sources are wind, photovoltaic, wave, biomass, and tidal as substitute sources to yield electricity (Atiq & Soori, 2017). The global energy report for 2012 indicated that over 16% of the world’s energy consumption comes from renewable energy sources. While this might be considered a relatively small proportion, Johnson (2013), noted that over half of the new electric power installations in the year 2011 were from a renewable energy source

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