CHAPTER 1
INTRODUCTION
1.1 Background
The increasing of technology development today that causes high of demand energy. More of equipments today need used energy especially electrical energy. Without electrical
energy, economic activity was paralyzed because all work today needed electrical energy whether in office, industrial, transportation place, bank, and all around the world. Because of
the high demand in energy used, these can effect of decreasing the prime energy such as oil, coal, and natural gas. Besides, the uses of the prime energy such as oil, coal and natural gas as
the demand to get energy also cause pollution to environment. It is about 40 of global energy will cause emissions of carbon dioxide and this become increasing up to 58 in 2030.
Because of those problems, the alternative energy will be introduced to solve it. The concept of alternative energy that will use is relates to sustainability, renewability, and
pollution reduction. The various form renewable energy will be introduced such as solar energy, wind energy, biomass energy, hydro energy, geothermal energy, wave and tidal
energy. Based on the increasing of renewable energy technology development today clearly shown it will becomes as alternative energy to replacement the fossil fuel energy that will be
used today in the future.
1.2 Motivation
This project is to study the performance of energy management of the hybrid PV-wind stand alone system. In this case, the PV and wind generator were chosen as renewable energy
and prime energy to generate the energy to supply direct current DC load which is LED light as the load of the system. PV and wind turbine were chosen because it is easy to used and can
be used anywhere. Besides, it is easy to install and not need the extra space to build this system. The system will consist of the several parts which are wind turbine, PV panel, charge
controller, storage and the load. Figure 1.1 shows the schematic of the proposed system.
Figure 1.1
: Schematic of the proposed system [1].
This project is to research the energy management of hybrid PV-wind stand alone system. In this case, the performance of the energy in this system will be analyzed by taking
the measure of the output energy of the system. Besides, the problem that will facing today which is the storage of the extra energy that generated by the prime energy like PV and wind
turbine can be consider in this study as the one of the part of energy management. On the other hand, energy controller charger which is the important part in this system also will be analyzed
and the performances will be investigated.
The type of the inverter also was been identify as the part in the controller. As the load of the system, the LED light of the system will be used. The energy that will produce at the
load and when load is connect to system will be analyzed to find it performances in the system.
1.3 Problem Statement
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