hybrid power generation by solar –wind
DESCRIPTION
With the development of industry andagriculture, a great amount of energy such as coal, oiland gas has been consumed in the world. Extensiveuse of these fossil energies deteriorates a series ofproblems like energy crisis, environmental pollutionand so on. Everybody knows that the fossil energyreserves are finite, some day it will be exhausted.It is possible that the world will face aglobal energy crisis due to a decline in theavailability of cheap oil and recommendations to adecreasing dependency on fossil fuel. This has led toincreasing interest in alternate power/fuel researchsuch as fuel cell technology, hydrogen fuel, biodiesel,Karrick process, solar energy, geothermal energy,tidal energy and wind. Today, solar energy and windenergy have significantly alternated fossil fuel withbig ecological problems.With the development of the science andtechnology, power generation using solar energy andwind power is gradually known by more and morepeople. And it is widespread used in many developedcountries. The merits of the solar and wind powergeneration are very obvious-infinite and nonpolluting.The raw materials of the solar and windpower generation derived from nature, and windpower generation can work twenty-four hours a day,solar power generation only works by daylight. Inaddition, this kind of power generation has noexhaust emission and there is no influence to thenature. But it also has some shortcomings. Becauseof the imperfect of the technology, equipment of thesolar and wind power generation is very expensive.By far, it cannot be widely used.In addition, solar and wind powergeneration system affected by the changing of theweather very much, so it has obvious defects inreliability compared with fossil fuel, and it is difficultto make it fit for practical use the lack of economicalefficiency .Because of these problems it needs toincrease the reliability of energy supply bydeveloping a system which interacts Solar and windenergy. This kind of system is usually called windsolarhybrid power generation system significantlyalternated fossil fuel with big ecological problems.TRANSCRIPT
Govt. College of EngineeringChandrapur
HYBRID POWER GENERATION BY SOLAR –WIND
INTRODUCTION It is possible that the world will face a global
energy crisis due to a decline in the availability of cheap oil and recommendations to a decreasing dependency on fossil fuel. This has led to increasing interest in alternate power/fuel research such as fuel cell technology, hydrogen fuel, biodiesel, solar energy, geothermal energy, tidal energy and wind. Today, solar energy and wind energy have significantly alternated fossil fuel with big ecological problems.
RENEWABLE ENERGY Renewable Available in wide spread Free from pollution Clean and pure energy
Solar EnergySun rays converted into electrical energyUnlimited supplyNo negative impactFree of costFree from pollution
Wind EnergyConverts wind energy into electrical energyNo fuel costFree from pollution
Geographical Region
Solar Average solar radiation 5kwh/sq m 2300-3200 sun shine hours available per year Available most part of country
•Wind Southern and Western coastal areas are ideal
location Annual average wind speed 5-6 m/s Attractive option to supplement the energy supply
HYBRID The thing made by combining two or more different
element.•Need of Hybridization
For increasing output For fulfilling demand of consumer Providing uninterrupted power supply System can design for both off grid and on grid
DIFFERENT HYBRID POWER TECHNOLOGYSolar-Wind Hybrid PowerSolar-Diesel Hybrid PowerWind-Hydro Hybrid PowerWind-Diesel Hybrid Power
Solar-Wind Hybrid Power
Ideal alternative in areas where wind velocity 5.6 m/s is available
Power clear and non pollutingComplement to each otherStable power supply
COMPONENTS OF HYBRID GENERATORSolar
panel
Controller Monitors the system starting and stopping engine as need
Why we use MPPT Charger Controller
•Consider solar panel Kyocera KC 130. It is rated at 7.39 𝐴𝑚𝑝𝑠 at 17.6 It’s power output is 130 Watts . •Panel puts out 7.39 𝐴𝑚𝑝𝑠 & battery charges under 12V
• 7.39 𝐴𝑚𝑝𝑠 * 12V =88.8 Watts
• We lost over 41 Watts. But we paid for 130 Watts.
• To overcome this loss, we use MPPT Charger Controller.
Working of MPPT Charger Controller
•Controller compares voltages of PV panel & Battery
•Figure out best voltage to charge Battery
• Example: Controller takes 17.6 Volts at 7.4 𝐴𝑚𝑝𝑠 & gives output to 10.8 𝐴𝑚𝑝𝑠 at 12Volts . 10.8 𝐴𝑚𝑝𝑠 * 12Volts = 129.6 Watts
• Now we still have almost 130 Watts.
Batteries
Stored the energy
Inverter Converts stored DC power to AC
WORKINGSolar & Wind turbine produced DC powerInverter convert DC to ACController monitors the system
CHOICE OF COMPONENTChoice of components For 1000 Watt Load
Solar Panel: • Total load = 1000W •Period of operation or duration = 12 Hours •Then, Total Watt-Hour = 1000×12= 12000W-hr •The period of the solar panel exposed to the sun = 8 Hours (Averagely between 9am and 3pm) •Therefore solar panel wattage = 12000𝑊ℎ/8ℎ=1,500𝑊. •Hence solar panel of 1,500W will be needed for this design. •If solar panel of 150W is to be use the number of panels to arrange in parallel to achieve 1,500 Watt will be: No of panel =1500W/150𝑊=10 This shows 10 of 150 Watt solar panel will be required for this design
Charging Controllers: For this design of 1000W solar power supply P=IV Where I is the expected charging current and V is the voltage of the battery and V= 12 V P is the power supply rating= 1000W Hence I =𝑃/𝑣=1000/12=83𝐴𝑚𝑝𝑠. Since the value 83.3 A Charging controllers is not
readily available in the market then 1000A charging controller will be used.
Battery capacity:
Given that the total load P= 1000W and Operational period = 12 Hours Watt-hour capacity = 12,000 W-hr To make the chosen battery to last long it is assumed that
only a quarter (¼) of the battery capacity will be made used of so that it will not be over discharged therefore hence the required batter capacity will be
12, 000 × 4 = 48,000 W-hr Now the choice of battery hour depends on A-H rating of
the storage battery. For example 1500AH, 12V batteries the number of
batteries that will be needed is 48000/1500 = 32 batteries. Hence, for this design , 1500AH 12V battery should be used, Therefore the total number of storage battery required for 1000W solar power supply system = 32
Inverter Since the total load is 1000W it is advisable to size the
required inverter to be 1500W as designed for solar panel ratings. Hence 1500W pure sign wave inverter is recommended in other to prolong the lifespan of the inverter.
APPLICATION Hotels Business (Institutions and Government) Large Estate Houses Factories and manufacturing facilities Commercial Power generation Street lighting
ADVANTAGES Very high reliability (combines wind power, and solar
power) Long term Sustainability High energy output (since both are complimentary to
each other) Cost saving (only one time investment) Low maintenance cost (there is nothing to replace) Long term warranty No pollution Clean and pure energy Provides un-interrupted power supply to the equipment The system gives quality power out-put DC to charge
directly the storage battery or provide AC. The system can be designed for both off-grid and on grid
applications. Efficient and easy installation, longer life
DISADVANTAGES Large number of harmonics is produced. Initial investment is more. Large space is required for larger generations Wind energy systems are noisy in operation; a large
unit can be heard many kilometers away. Efficiency is less than conventional power plants.
CONCLUSIONBy this project many villages can be lighted. For
villages which are much away from the construction site of large power generating stations such as hydro and nuclear can be provided power.
Also to satisfied the increasing demand of electricity with clean hybrid power station by solar –wind can be used.
REFERENCES
www.solarserver.comwww.windpower.orghttp//:www.scientific.netW.W.S. Charters. “Solar and Wind Power
Technologies”. CSC Technical Publication Services No 187, Commonwealth Science Council. (1985).
Thank
You………….