Abstract
Considering the intermittent natural energy resources and the seasonal un-balance, a phtovoltaic-wind hybrid electrical power supply system was developed to accommodate remote locations where a conventional grid connection is inconvenient or expensive. However, the hybrid system can also be applied with grid connection and owners are allowed to sell excessive power back to the electric utility. The proposed set-up consists of a photo-voltaic solar-cell array, a mast mounted wind generator, lead-acid storage batteries, an inverter unit to convert DC to AC, electrical lighting loads, electrical heating loads, several fuse and junction boxes and associated wiring, and test instruments for measuring voltages, currents, power factors, and harmonic contamination data throughout the system. The proposed hybrid solar-wind power generating system can be extensively used to illustrate electrical concepts in hands-on laboratories and also for demonstrations in the Industrial Technology curriculum. This paper describes an analysis of local PV-wind hybrid systems for supplying electricity to a private house, farmhouse or small company with electrical power depending on the site needs. The major system components, work principle and specific working condition are presented.
Highlights
Energy plays an important role in all types of development, including economic development
Wind power is basically electricity produced by a generator, which is driven by a turbine according to flowing air’s aerodynamics, and is one of the fastest growing renewable energy technologies around the world
The aim of this study is to introduce the local PV-wind hybrid system’s working principle by reviewing one case where the system is connected to the grid
Summary
Energy plays an important role in all types of development, including economic development. The world total energy annual consumption generally increases, with the vast majority of energy being produced by fossil fuels such as coal, oil and natural gas. Wind and solar energy sources are significantly less productive compared to fossil fuels, the use of photovoltaic (PV) cells and wind turbines [2] has increased rapidly during the last years, especially in developed countries. PV modules and wind turbines [3] are widely used in developed countries to produce electrical power in locations where it might be inconvenient or expensive to use conventional grid supplies, while other homeowners who choose the renewable energy sources prefer to connect their energy system to the grid as a huge ‘battery’ for some convenient grid-tied situation. The aim of this study is to introduce the local PV-wind hybrid system’s working principle by reviewing one case where the system is connected to the grid
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