Changes
/* Brief History of Wind Energy */
==Working Principle of Wind Turbine ==
Wind is air in motion. It is a form of solar energy. Solar radiation heats every part of the Earth’s surface unevenly due to irregularities and rotation of earth. The flow of wind patterns are modified by the earth's terrain, bodies of water, and vegetative cover. When air moves, causing wind, it has kinetic energy. The kinetic energy of wind can be captured by a wind turbine and converted to other forms of energy such as electricity or mechanical power.
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Generator torque control'''</font>
|-
Source:[http://www.moog.com/markets/energy/wind-turbines/blade-pitch-control/ Blade Pitch Control]
|bgcolor = "#DCE6F1"|The rotation of horizontal axis wind turbine around its tower to orient the turbine in upwind or down wind direction.
| align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Description'''</font>
|-
| bgcolor = "#DCE6F1"| Machines or engines for liquids; wind, spring, or weight motors; producing mechanical power or a reactive propulsive thrust / '''Wind motors'''
|-
| align = "center" bgcolor = "#99ccff"|2
| align = "center"|[http://www.wipo.int/ipcpub/#refresh=page¬ion=scheme&version=20110101&symbol=F16C F16C]
| Engineering elements or units; general measures for producing and maintaining effective functioning of machines or installations; thermal insulation in general/ '''Shafts; flexible shafts; elements of crankshaft mechanisms; rotary bodies other than gearing elements; bearings'''
|-
| bgcolor = "#DCE6F1"| Engineering elements or units; general measures for producing and maintaining effective functioning of machines or installations; thermal insulation in general / '''Gearing'''
|-
| align = "center" bgcolor = "#99ccff"|4
| align = "center"|[http://www.wipo.int/ipcpub/#refresh=page¬ion=scheme&version=20110101&symbol=F03B F03B]
| Machines or engines for liquids; wind, spring, or weight motors; producing mechanical power or a reactive propulsive thrust / '''Machines or engines for liquids'''
|-
| bgcolor = "#DCE6F1"|Generation, conversion, or distribution of electric power / '''Dynamo-electric machines'''
|-
| align = "center" bgcolor = "#99ccff"|6
| align = "center"|[http://www.wipo.int/ipcpub/#&refresh=page¬ion=scheme&version=20110101&symbol=H02P H02P]
|Generation, conversion, or distribution of electric power / '''Control or regulation of electric motors, generators, or dynamo-electric converters; controlling transformers, reactors or choke coils'''
|-
| bgcolor = "#DCE6F1"|Generation, conversion, or distribution of electric power / '''Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; conversion of dc or ac input power into surge output power; control or regulation'''
|-
| align = "center" bgcolor = "#99ccff"|8
| align = "center"|[http://www.wipo.int/ipcpub/#refresh=page¬ion=scheme&version=20110101&symbol=H02J H02J]
| Generation, conversion, or distribution of electric power / '''Circuit arrangements or systems for supplying or distributing electric power; systems for storing electric energy'''
|-
| bgcolor = "#DCE6F1"| Computing; calculating; counting /'''Electric digital data processing'''
|-
| align = "center" bgcolor = "#99ccff"|10
| align = "center"|[http://www.wipo.int/ipcpub/#refresh=page¬ion=scheme&version=20110101&symbol=G05F G05F]
| Controlling; regulating / '''Systems for regulating electric or magnetic variables'''
|-
| bgcolor = "#DCE6F1"| Generation, conversion, or distribution of electric power / '''Emergency protective circuit arrangements'''
|}
<br>
{|border="2" cellspacing="0" cellpadding="1" width="15%"
| style="background-color:#999990;padding:0.079cm;"| <center>[http://dolcera.com/wiki/index.php?title=Wind_Energy <<Back to main page]</center>
|}