This will significantly reduce costs – possibly as much as 50%
A New Zealand invention, designed to make wind power more efficient and cheaper, has been singled out by a renowned wind technology expert as one of the world’s leading new innovations.
The invention, Gyroscopic Variable Transmission (GVT), is the brainchild of New Zealander Mr Jega Jegatheeson. It has been featured in a new book, “Innovation in Wind Turbine Design”, by Glasgow-based wind expert Peter Jamieson, as being on the leading edge of wind power technology.
Mr Jegatheeson, previously an engineer with the former Electricity Corporation of New Zealand, has been working for over 15 years to solve the problems faced by the wind power industry of gearboxes breaking as a result of the massive wind gust forces they are subjected to.
“It’s widely recognised in the industry that the gearboxes cannot stand up to the incessant forces over time and many fail within as little as five to seven years. The costs of repairs and also the downtime are very significant and alternatives such as direct drive create other expensive problems,” says Mr Jegatheeson.
“Unlike traditional wind turbine gearboxes around the world, GVT technology doesn’t rely on gears and expensive electronics. It instead uses gyroscopic reaction forces to transfer the power from the blades to the generator with less stress on the turbine. This will significantly reduce costs – possibly as much as 50% compared to existing systems.”
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