Date post: | 15-Jul-2015 |
Category: |
Engineering |
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INTRODUCTION
Wind energy, as a clean and
renewable energy, is now
being widely developed to
reduce the production of
carbon dioxide from fossil
fuels and mitigate the energy
crisis. The urgent needs for
wind energy motivate larger
generators with lower cost,
lower weight, and higher
reliability and new
technologies to make it a
frontrunner.
HISTORY OF WIND USE
Man’s harnessing of the wind goes back thousands of years
Sail Boats
Wind Mills
Wind Turbines
HOW DOES IT WORK???
Wind turbines convert wind energy to electricity for distribution. Conventional horizontal axis turbines can be divided into three components:
The rotor component
The generator component
The structural support component
TYPES OF WIND TURBINES
Wind turbines can rotate
about either a horizontal
or a vertical axis.
♣ Horizontal-axis wind
turbines (HAWT)
♣ Vertical-axis wind
turbines (VAWTs)
WIND TURBINE GENERATORS
WTG’s are of following
types:
DC Generators
AC Synchronous
Generators
They may be of:
1. Fixed Speed Type
2. Variable Speed Type
SPECIFIC WIND POWER PROBLEMS, ALLEGED
PROBLEMS AND OBJECTIONS
Noise problems
Power availability and transmission
problems
Environmental problems
Inequible spread of financial benefit
Aesthetic problems
Social disruption
Other problems
ADVANCEMENTS IN WIND POWER: NEW
TECHNOLOGIES AND IDEAS
Solar Wind
Power
Wireless Energy
Transmission
EWICON
Honeywell Wind
Turbines
Flying Wind Farms
Smart Grid Integration
Compressed-Air
Energy Storage –
CAES
CONCLUSION
The installed power in wind energy has grown rapidly in many years. Today more than 45000 MW are installed globally with recently an annual market of 8000 MW. The expectations for the future are also very positive as many countries have progressive plans.
Of course there are problems associated with wind farms