The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2015
Filed:
Sep. 14, 2010
Ryosuke Ito, Shinjuku, JP;
Takanori Okubo, Nishitokyo, JP;
Tadaaki Chikashige, Kawasaki, JP;
Takashi Yamazaki, Kiyose, JP;
Hikaru Matsumiya, Setagaya, JP;
Ryosuke Ito, Shinjuku, JP;
Takanori Okubo, Nishitokyo, JP;
Tadaaki Chikashige, Kawasaki, JP;
Takashi Yamazaki, Kiyose, JP;
Hikaru Matsumiya, Setagaya, JP;
Other;
Abstract
Provided is a wind power generation apparatus to which general purpose inverters are applicable. An inverter in a constant-voltage mode is used. While a wind power generator is generating electricity, switching circuits are turned on and off at a controlled duty cycles to intermittently short-circuit an armature winding, boosting the voltage and controlling the rotational speed of a windmill rotating blade, with the result that the voltage applied to the inverter is made constant. At the activation, in order to prevent an excessive voltage from being generated while an inverter is changing from the stand-by state to the activated state, ON/OFF control of a switching circuit is performed to switch between the output voltage of a rectifier and the voltage generated at a resistor, with the result that the voltage is controlled and maintained at an appropriate value.