Q. Planetary shaft gearbox is not used in large turbines.

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Q. Power generation contains ________

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Q. What is a fixed speed WECS?

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Q. Fixed speed WECS are equipped ________ generators.

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Q. How is the speed varied in limited variable speed WECS?

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Q. Which generator is used in variable speed WECS?

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Q. Which of the following components are used as converters in power electronics converter?

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Q. What is the function of rotor side converter?

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Q. What is the function of grid side converter?

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Q. What is sub-synchronous mode in doubly-fed induction generator (DFIG)?

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Q. What is super-synchronous mode in doubly-fed induction generator (DFIG)?

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Q. Which of the following generators are mostly used in WECS?

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Q. Which of the following is a flowchart depicting WECS modelling?

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Q. _______ speed WECS is the most flexible in terms of the generator used.

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Q. What happens to wind speed when many turbines operate collectively?

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Q. Which of the following is true?

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Q. Lower wind speeds result in ________

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Q. What happens to the output power when the wind turbine blades rotate faster for the entire operation time?

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Q. Higher wind speeds _________ the speed of rotation of the wind blades.

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Q. What is cut-in wind speed?

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