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:
May. 14, 2013
Filed:
Oct. 26, 2009
Shinichi Sano, Tokyo, JP;
Katsura Mitani, Tokyo, JP;
Yoshikazu Hirose, Tokyo, JP;
Hiroyuki Wakatabe, Tokyo, JP;
Ichiro Shimoura, Tokyo, JP;
Shinichi Sano, Tokyo, JP;
Katsura Mitani, Tokyo, JP;
Yoshikazu Hirose, Tokyo, JP;
Hiroyuki Wakatabe, Tokyo, JP;
Ichiro Shimoura, Tokyo, JP;
Shin-Kobe Electric Machinery Co., Ltd., Tokyo, JP;
Abstract
There is provided a method for operating a lead acid storage battery in order to compensate for fluctuations in the amount of power generated by a solar power generation apparatus, a wind power generation apparatus, or another natural energy power generation device, the lead acid storage battery being charged by a power generation device and discharged to a load. The state of charge of the lead acid storage battery is maintained in a range of 30 to 90% where the fully charged state of the lead acid storage battery is 100%; and the lead acid storage battery is charged and discharged while the battery voltage is kept in a specified range of 1.80 to 2.42 V per cell to extend the service life of the battery. A reference temperature of 25° C. is established, and when the ambient temperature has risen above or fallen below the reference temperature, the upper and lower limit values of a specified range are corrected within a range of −4 mV/° C. to −6 mV/° C. per cell according to the amount by which the temperature has increased or decreased so that a corrected voltage range is obtained. The storage battery is charged and discharged while the battery voltage is kept in the corrected voltage range, and the battery is operated.