Design and simulation of grid-connected photovoltaic-diesel hybrid system

The availability of reliable electrical energy is essential in developing countries for functioning in modern economies such as in residential, industrial and commercial developments. The sources to produce electricity can be divided into two categories: renewable sources and non-renewable sources. Renewable energies are sources of clean and inexhaustible energies which can be produced from natural resources and they produce neither greenhouse gases nor polluting emissions. There are variety of renewable energy such as wind energy, solar energy, hydro energy, biomass and biofuel energy and etc. The photovoltaic-diesel hybrid systems are systems that combine photovoltaic system and diesel generators to generate electricity. There are many types of photovoltaic-hybrid system. They are series hybrid, switch hybrid and parallel hybrid. In the series photovoltaic-hybrid system, Photovoltaic generator or diesel generator is used along with battery bank to charge. In this paper, the sizing of photovoltaic-diesel hybrid system with grid connection is calculated for the electricity consumption of an industry. The study area of this paper is located in North Okkalapa township, Yangon division, Myanmar and at latitude 16 degrees 53'06.9"N and longitude 96 degrees 09'17.8"E. The load consumption of this garment factory is firstly collected. In this paper, a photovoltaic system was designed. The number of modules, the number of inverters, and the efficient techniques of connecting them together was stated. Also the area of the designed photovoltaic system was calculated, and a suitable location for the system was chosen. The sizing calculation of the system is designed by using HELIOSCOPE software and HOMER software.