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:
May. 21, 2019
Filed:
Jun. 28, 2014
Siemens Aktiengesellschaft, Munich, DE;
Bjorn Andresen, Ostbirk, DK;
Per Egedal, Herning, DK;
Dragan Obradovic, Ottobrunn, DE;
Ruxandra Scheiterer, Geretsried, DE;
Andrei Szabo, Ottobrunn, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method for estimating grid properties of a power grid coupled to a generator at a point of common coupling is provided. First, a voltage Vat the point of common coupling is measured. Second, a current Iat the point of common coupling is measured. Third, the grid properties are estimated by a grid model using as input parameters the measured voltage Vat the point of common coupling, the measured current Iat the point of common coupling and the determined phase angle. Advantageously, the absolute phases of the voltage and the current at the point of common coupling are not necessary, which makes the present method less prone to errors due to measurement noise. Further, a device and a computer program product are provided.