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:
Mar. 05, 2019
Filed:
Oct. 21, 2014
Toshiba Mitsubishi-electric Industrial Systems Corporation, Chuo-ku, JP;
Masato Hanada, Tokyo, JP;
Daisuke Tsurumaru, Tokyo, JP;
Abstract
A charge/discharge management device relating to the present invention is provided in equipment including a storage battery system. The storage battery system includes a plurality of PCS groups. Each of the PCS groups includes a storage battery, a BMU, and a PCS. The charge/discharge management device includes an operation time SOC calculation unit, a stop time SOC estimation unit, and an initial SOC resetting unit. The operation time SOC calculation unit calculates an operation time SOC for which an SOC based on an integrated value of a current value supplied from the BMU is added to an initial SOC of the storage battery, for each of the plurality of PCS groups. The stop time SOC estimation unit stops charge/discharge of the some group in the case that a stop condition is established, and thereafter, estimates a stop time SOC of the storage battery based on a voltage value supplied from the BMU for the some group. The initial SOC resetting unit resets the initial SOC that the operation time SOC calculation unit has with the stop time SOC, and resets the integrated value that the operation time SOC calculation unit has.