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. 10, 2026
Filed:
Dec. 08, 2023
Hitachi Energy Ltd, Zürich, CH;
Pablo Montero Robina, Seville, ES;
Frans Dijkhuizen, Skultuna, SE;
Bertil Berggren, Västerås, SE;
Nicklas Johansson, Västerås, SE;
Roberto Alves, Västerås, SE;
Ali Tayyebi, Västerås, SE;
Hitachi Energy Ltd, Zurich, CH;
Abstract
There is disclosed herein an energy storage system for a direct current (DC) transmission system, the energy storage system being configured to be connected to a DC link. The energy storage system comprises a first system terminal, a second system terminal, a first converter connected to the first system terminal, and a second converter connected to the first converter and the second system terminal. The energy storage system further comprises an AC loop device providing an alternating current (AC) path, and a plurality of energy storage devices connected in parallel with the second converter comprising a cell having power electronic switches, and an energy storage element connected to the cell, wherein the cells are individually switchable. The present disclosure further relates to a method for providing energy storage to a DC transmission system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile