THE DESIGN OF A SMART ENERGY MANAGEMENT SYSTEM FOR MICROGRIDS

Year 2017, , 34 - 42, 30.12.2017

Ali Utma Mehmet Ali Özçelik , Ahmet Serdar Yılmaz

https://doi.org/10.23884/IJESG.2017.2.2.02

Cited By: 1

Abstract

The
increase in the use of renewable energy systems in recent years has led to an
increase in the importance of work on micro-grids. In micro-grids, energy is
consumed where it is produced. This leads to a reduction in transmission and
power losses in the lines. At the same time, the negative effects of the
industrial plants that disrupt the quality of power are eliminated by the
micro-grid model and more efficient and reliable grids can be established.
Technological developments that impact each field have also affected the
electricity distribution grids. Problems such as inefficient energy
transmission systems caused by high power losses, problems in the integration
of renewable sources into the grid, inflexible demand, and wage problems make
it difficult to meet the increasing demand with the traditional structure. In
this study, a smart grid system was set up in the sample micro structure. The
system consist from a photovoltaic system with a consumer and a grid system
that feeds this consumer. There are a photovoltaic system and also a battery
group in the applied micro grid. The power of the photovoltaic system in the
micro-grid is continuously monitored by a microcontroller. The energy level
information of PV panel system, the battery, and grid are supplied by voltage
divider circuits to microcontroller. The information transmitted by the voltage
dividers to the microcontroller is evaluated by the control algorithm.
Considering account possible possibilities, the receiver is primarily fed by
the photovoltaic system, in other cases fed from the grid or the battery
system, thanks to the semiconductor switches used in the microcontroller
control. In addition, excess energy generated by the microcontroller is
transferred to the main grid. As a result of this application, the level of use
of the renewable energy system has been increased and the energy cost has been
reduced.

Keywords

Microgrids, smartgrids, energy management system

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