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:
Aug. 05, 2025
Filed:
Nov. 26, 2020
Applicants:
Abb Schweiz Ag, Baden, CH;
Hitachi Energy Ltd, Zürich, CH;
Inventors:
Assignees:
ABB Schweiz AG, Baden, CH;
Hitachi Energy Ltd, Zürich, CH;
Primary Examiner:
Int. Cl.
CPC ...
G05B 19/042 (2006.01); H02J 3/24 (2006.01); H02J 3/38 (2006.01); H02J 9/06 (2006.01);
U.S. Cl.
CPC ...
H02J 3/38 (2013.01); G05B 19/042 (2013.01); H02J 3/24 (2013.01); G05B 2219/2639 (2013.01); H02J 9/06 (2013.01); H02J 2300/24 (2020.01);
Abstract
The present disclosure provides a grid forming vector current control system configured to emulate a virtual synchronous machine (VSM). The disclosed system comprises a droop control unit, a current control unit, a virtual admittance unit and a phase locked loop (PLL) unit. The virtual admittance unit and the PLL unit are configured to emulate an inertia of the VSM. A virtual current source is connected in parallel to the VSM.