Water cooled wind power generation apparatus and electric generator cooling method for wind power generation apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsYoshihiro TANIYAMA, Yasuo KABATA, Masanori ARATA, Takashi UEDA
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Abstract
According to one embodiment, there is provided a wind power generation apparatus including a rotor unit including blades configured to convert wind energy into a rotary motion, and an electric generator configured to convert the rotary motion energy of the rotor unit into power includes a water cooling pipe arranged between a lower stator coil and an upper stator coil which constitute a stator coil attached to a slot groove of a stator of the electric generator, and a water cooler configured to supply cooling water into the water cooling pipe and remove heat generated in the stator coil.
Claims13
A wind power generation apparatus including a rotor unit including blades configured to convert wind energy into a rotary motion, and an electric generator configured to convert rotary motion energy of the rotor unit into power, comprising:
- a water cooling pipe arranged between a lower stator coil and an upper stator coil which constitute a stator coil attached to a slot groove of a stator of the electric generator;
- and
- a water cooler configured to supply cooling water into the water cooling pipe and remove heat generated in the stator coil.
A wind power generation apparatus including a rotor unit including blades configured to convert wind energy into a rotary motion, and an electric generator configured to convert rotary motion energy of the rotor unit into power, comprising:
- water cooling pipes arranged on the same side surface sides of a lower stator coil and an upper stator coil which constitute a stator coil attached to a slot groove of a stator of the electric generator or on side surface sides different from each other;
- and
- a water cooler configured to supply cooling water into the water cooling pipes and remove heat generated in the stator coil.
A wind power generation apparatus including a rotor unit including blades configured to convert wind energy into a rotary motion, and an electric generator configured to convert rotary motion energy of the rotor unit into power, comprising:
- a water cooling pipe including two side water cooling pipes arranged on side surface sides of a lower stator coil and an upper stator coil which constitute a stator coil attached to a slot groove of a stator of the electric generator, the side surface sides being different from each other, and an intermediate water cooling pipe intervening between the lower stator coil and the upper stator coil and communicating with the two side water cooling pipes;
- and
- a water cooler configured to supply cooling water into the water cooling pipe and remove heat generated in the stator coil.
An electric generator cooling method for a water-cooled wind power generation apparatus which includes a rotor unit including blades configured to convert wind energy into a rotary motion, an electric generator configured to convert rotary motion energy of the rotor unit into power, and a water cooler, and cools a stator coil of the electric generator, the method comprising:
- acquiring data that affects a power generation amount of the electric generator;
- estimating, based on the acquired data, a required flow rate of the water cooler configured to supply water into a water cooling pipe arranged along the stator coil attached in a slot groove of a stator of the electric generator;
- and
- controlling, based on the estimated required flow rate of cooling water, a rotational speed of a pump intervening between the water cooler and a generator outlet-side end of the water cooling pipe, increasing/decreasing the flow rate of the cooling water supplied into the water cooling pipe, and removing heat generated in the stator coil.
Dependencies are inferred from the claim text.