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Hybrid Power System - Coursework Example

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The researcher of this following discussion will attempt to describe the power system. The paper will also explain and present the scientific principles involved in such power system as follows: solar power system; wind power system and hydro power system. …
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Hybrid Power System
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Hybrid Power System

Download file to see previous pages... The paper tells that the power system of choice which best suits this project is “Hybrid Power System”. This system employs combination of Off grid renewable energy technologies among which we are going to use a combination of Solar, Wind, Hydropower and for an emergency back up a gasoline/diesel generator is also provided. Hybrid power system is selected due to two reasons, firstly because it can be established off-grid to satisfy small demand of electricity and long distribution infrastructure can be avoided. Secondly as we are aware that none of the available sources of energy ie Solar,Wind or Hydropower are available continuously and change due to sunshine, high and low flow of wind and water, hence they cannot meet the base demand of the facility and have to be used intermittently. On a macro scale the Hybird system work in three phases, production, Power electronics and Consumption. The production is done by the Renewable Energy system, stored by batteries and in case of backup by generator. Then the Power Electronics regulates the supply and transmission of the power to the appliances where the load is required. To meet the base demand of 100KVa at a power factor of 1, thus energy requirement of 100KW we will include a system setup which will include three complete 20 kW solar panels. The photovoltaic systems that are available in the market are of 20kW, 50 kW and 100 kW and thus it has been concluded that three 20 KW panels are used. In case of failure of one, the system does not collapse completely. The next component in the Hybrid system’s energy input is the wind turbines. ...
For which it is suggested that Volute axial flow water turbine generator is employed and several similar assemblies of this turbine is used for the production. It is calculated, that with Volute axial flow water turbine generator, a head of about 2 meters and flow of 85 liters/sec a power of about 1 KW can be generated. Where as in our case the flow of 1800 to 2500 liters/sec several similar assemblies can be installed.It can be concluded that about 25 KW energy can be generated by Hydropower. The picture, details, specifications and references of Volute axial flow water turbine generator are given in Appendix 3. Lastly the question arises that how is this whole system going to work as one and deliver the requirements. To explain the whole working of the Hybrid System the following flow diagram is presented which shows how the required AC current and load is produced and transmitted in the system. The figure shows how the AC main bus line is used to produce, store and then transmit the load. This is the complete power system under consideration. 2. Explain the scientific principles involved in your choice of power system. The scientific principles involved in the individual power system are as follows. Solar Power System The solar energy depends on two things, firstly the solar radiance and secondly the nature of the PV cell materials. The PV cells have two types of materials p-type silicon and n-type silicon. When the light strikes the cell surface, it transmit energy and ionize the atoms in the silicon material, due to this there is development of internal fields and then a junction separates the positive and negative charges in the PV cell. The positive charges go into the P-Layer and the negative ...Download file to see next pagesRead More
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