Patent · US Active

Module for large scale energy storage

US12249856B2 · kind B2 · utility

0Cited by

2References

12Claims

0Family size

Assignee

Hitachi Energy Ltd · CH

Inventors

Jean-Philippe Hasler · Västerås, SE
Juergen Steinke · Albbruck, DE
Gunnar Ingeström · Västerås, SE
Jan-Olof Svensson · Kivik, SE
Lexuan MENG · Västerås, SE
Haofeng Bai · Västerås, SE
Tong Wu · Västerås, SE
Theodore Soong · Västerås, SE

Key dates

Filing date	May 31, 2021
Grant date	Mar 11, 2025
Priority date	—
Expiry date	May 31, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02J2207/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A module (100) for use in an energy storage system is provided, including a first terminal (110) and a second terminal (112); a supercapacitor branch (120) including an arrangement (122) of one or more supercapacitors (124), and a resistive bypass branch (130) including at least a first bypass switch (132) and a resistance (134) connected in series. The supercapacitor branch and the resistive bypass branch are connected in parallel between the first terminal and the second terminal. The module may further include a direct bypass branch (140) having a second bypass switch (142), the direct bypass branch being also connected in parallel with the supercapacitor branch (120) between the first and second terminals. A control method of such a module and an energy storage system including several such modules, are also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.