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When the wind turbines restart during an increase in wind speed how are they synchronised with the grid before the circuit breaker/s concerned close?

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When the wind turbines restart during an increase in wind speed how are they synchronised with the grid before the circuit breaker/s concerned close?

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The 88 wind turbines to be used on the wind farm are Siemens 3.6 MW. The electrical concept is the reliable a-synchronous, squirrel cage generator without slip rings. The generator is grid connected through a full power electronic convertor (AC-DC-AC) and operates at variable speed, fully decoupled from the system frequency. The sequence described above is called the cut-in sequence (wind speed increases to 3-5 m/s) and is managed by the wind turbine controller, where the power electronics allow the complete control of the active and reactive output of the turbine. This controller automatically synchronises the turbine with the grid. What is the projected life of the wind farm and what would the reasons be for the wind farm to be dismantled? The lease period for the wind farm is 50 years. As part of the consent, it is agreed that the project owner will remove the wind turbines and all associated equipment above the ground at the end of the wind farm’s lifespan. Continuing developments

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