Kabushiki Kaisha Toshiba

Toshiba Energy Systems & Solutions Corporation

Nitto Chemical Co., Ltd.

Makoto Ide

Mami Mizutani

Masahiro Tohara

Takenori Kobayashi

Tsutomu Tanno

Shinichi Suzuki

Tadashi Kimura

Maurizio Corti

Marco Volpato

Masashi Suematsu

Tomohiro Toyosaki

Yoshio Tamura

Tetsuya Matayoshi

Kouei Miyazato

Nobuo Okamura

Kazuhiro Takaishi

Kozo Hatsumi

Takehiro Miyazawa

Hiromi Hasegawa

Takuhiko Ohashi

Osamu Hatsumi

Isao Naganuma

According to an embodiment, a storage battery management device includes: a memory configured to store therein storage battery characteristics of a storage battery unit as a storage battery characteristics table; and one or more processors coupled to the memory. The one or more processors are configured to: acquire the storage battery characteristics based on storage battery information output from the storage battery unit; update the storage battery characteristics table based on the acquired storage battery characteristics; and estimate SOC of the storage battery unit by referring to the updated storage battery characteristics table.

Storage battery management device and method

A method of estimating, as the charging rate of an electricity storage system, the internal condition of the electricity storage system including plural batteries, and an internal condition estimating system utilizing that method are provided. A voltage measuring unitmeasures voltages of all batteriesconfiguring an electricity storage system block. A system cell voltage determining unitdetermines a system cell voltage that will be a reference for an estimation of the SOC value of the electricity storage system blockbased on the voltage value of the plural batteriesmeasured by the voltage measuring unit. The system cell voltage determining unitobtains the system cell voltage by giving a weighting to the voltage value in accordance with the pre-calculated SOC value of the electricity storage system block. The system SOC estimating unitestimates the SOC value of the electricity storage system blockbased on the current flowing through the batteryand the system cell voltage.

Internal condition estimating system and estimating method

An electricity storage system includes a plurality of chargeable and dischargeable battery boards, a plurality of PCSs connected to the respective battery boards, and charging and discharging the connected batteries, and a battery controller distributing a charging and discharging power value of the entire system as an instruction value to each of the PCSs at a constant cycle or at an arbitrary timing. The battery controller gives a charging and discharging instruction for a predefined test charging and discharging to the selected battery board, and distributes, to all the battery boards except the selected battery board, a value obtained by subtracting a charging and discharging power value for the test charging and discharging from a charging and discharging power value for the entire system.

Electricity storage system and method of estimating characteristic parameter

In a configuration of a method for preventing progression of corrosion in a steel pipe structure according to the present invention, two or more types of liquidsare injected, while being mixed, into a steel pipe that constitutes the steel pipe structure, from an opening at one of both ends of the steel pipe, and the inside of the steel pipe is filled with resin foam product (foam product) by foam expansion and hardening of the two or more types of liquids.

Preventing progression of corrosion in steel pipe structure

Growing community of inventors

Tokyo, Japan

Makoto Ide