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. 11, 2026
Filed:
Oct. 07, 2022
Hitachi Energy Ltd, Zürich, CH;
HITACHI ENERGY LTD, Zürich, CH;
Abstract
A method for grid forming control using a voltage source converter (VSC), connected to a grid at a point-of-common-coupling (PCC), is provided. The method comprises calculating a converter voltage reference for the VSC based at least on a reference current, calculating a phase-angle of an electromotive force (EMF) voltage vector of the VSC based on at least an active power reference, calculating a voltage amplitude of the EMF voltage vector based on at least a grid voltage at the PCC and a grid voltage reference, calculating the reference current by feeding the EMF voltage vector through a virtual admittance, and limiting the active power reference and the voltage amplitude based at least on a maximum allowed current threshold associated with operation of the VSC such that the reference current does not exceed said maximum allowed current threshold.