WIND POWER GENERATION TECHNOLOGY.pdf

More documents

Recommendations

Info

ENERGY STORAGEWind power turbines have operational limitations over very high and very lowspeeds. When the power generated exceeds the demand, excess energy can bestored to be used at other times.Excess energy can be conveniently stored in storage batteries in the form ofchemical energy.Excess energy can also be stored in water power storage in the form ofmechanical energy. Wind power plant (WPP) along with Hydroelectric powerplant (HPP), when generated power (Pg) exceeds the power demand (Pd), helpsto partly divert hydro power plant output to Pumping motor (PM) to pump waterfrom an auxiliary reservoir at the bottom of the dam to main reservoir.HPP WPP HPP WPPPg Pg PgGSPMGSPdPg = PdPdPg > PdExcess energy can also be stored in the form of compressed air.WindMillCompressorStorageTankW TGCompressedairWhen wind is not blowing, energy stored in compressed air could be used to drivewind turbine whose shaft would then drive a generator, thus supplying the neededpower.
GENERATOR CAPACITYWind Farms in IndiaS. No. Location Capacity1 Mandavi (Gujarat) 1.15 MW2 Tuticorin(Tamilnadu) 550 KW3 Okha (Gujarat) 550KW4 Puri (Orissa) 550 KW5 Deogarh (Maharashtra) 550 KWSAFETY INTERLOCKS1. Modern wind turbines are controlled by computers. If it shows any error inoperational parameters, then wind turbine is stopped.2. Emergency stop – During unfavourable conditions for wind turbines, it can beimmediately stopped using emergency stop.3. Wind velocity is measured and if gusts of wind are too strong or if the averagespeed is too high, wind turbine is stopped.4. To prevent rotor from racing, two revolution counters are mounted on the shaft. Ifwind turbine speed exceeds 24 rpm, it activates the emergency stop system.5. If the wind turbine speed exceeds 28 rpm, a parachute attached to the blade tip ispulled out and thereby speed of the wind turbine decreases.6. The three blades and wind turbine cap are grounded through lightening rods toprotect them from lightning.CONCLUSIONThe new mantra of the 21 st century is sustainable development, which means thatthe local population should be able to absorb the development of a country orregion. The people should be financially, mentally and physically able to supportthe improvement in the quality of their lives. We want the entire population tohave access to uninterrupted supply of electricity. This puts a huge burden on thelimited fossil fuel resources. The benefits of using wind power over otherresources lies in its minimum operational cost.Depending on field of applications, various schemes can be adopted to getoptimum output. Various option of storage facility makes it versatile source ofenergy. Modern turbines are totally controlled by computers that are totally safe.Since wind is clean source of energy, the power conversion does not pose anyenvironmental hazard.
Page 1 and 2: WIND POWER GENERATION TECHNOLOGYMrs
Page 3 and 4: RotorWindSpeedFreewindFreewindWind
Page 5 and 6: Cross-sectional ViewApart from the
Page 7: IV.Variable speed constant frequenc

WIND POWER GENERATION TECHNOLOGY.pdf

Create successful ePaper yourself

Delete template?

Save as template?