Solution to high generator wind temperature

Which generator is best for a wind turbine?

Small wind turbine applications are therefore better using a gearbox or an oversized direct-drive generator that can be naturally cooled. The direct-drive generator is therefore more suitable for medium to large wind turbines.

How can wind turbines be cooled?

For example, the industry standard for cooling offshore large wind turbines adopted by many OEMs is forced air cooling in a closed loop configuration. This solution is bulky and furthermore increases in size and weight with the wind turbine output power.

How to improve wind power generation reliability and reduce maintenance?

The wind power generation industry often prefers less performant conservative solutions against more performant but riskier ones. The steps that can be taken to increase reliability and reduce maintenance are as follows: Adopt a safe cooling fluid inside the generator like air or an inert gas.

What types of generators are used in offshore wind farms?

Generators Totally five types of generators are used in offshore wind farms, and they are: Doubly-Fed Induction Generator (DFIG), Squirrel-Cage Induction Generator (SCIG), Wound-Rotor Induction Generator (WRIG), Permanent Magnet Synchronous Generator (PMSG), and Electrically-Excited Synchronous Generator (EESG).

Should a generator be connected to a wind turbine?

One major design decision is whether to directly connect the generator’s shaft to the wind turbine or to use a gearbox [ 10, 11, 12, 13, 14, 15, 16 ]. Both designs have pros and cons. The gearbox option allows the generator to operate at a higher speed than the one provided by the wind turbine blades.

Are direct-drive permanent magnet generators suitable for high-power wind turbines?

Direct-drive permanent magnet generators for high-power wind turbines: benefits and limiting factors Promising direct-drive generator system for large wind turbines Experimental study of the cooling of a closed type electric motor Convective heat transfer in the entry region of an annular channel with slotted rotating inner cylinder