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. 27, 2014
Filed:
Jun. 30, 2010
Kerstin Linden, Ludvika, SE;
Gunnar Flisberg, Ludvika, SE;
Lars-erik Juhlin, Ludvika, SE;
Per Holmberg, Ludvika, SE;
Kerstin Linden, Ludvika, SE;
Gunnar Flisberg, Ludvika, SE;
Lars-Erik Juhlin, Ludvika, SE;
Per Holmberg, Ludvika, SE;
ABB Technology AG, Zurich, CH;
Abstract
A method for controlling power flow within a multi-terminal DC power transmission system including two or more converter stations and the corresponding multi-terminal DC power transmission system are provided. The method includes the steps of: controlling the power flow to a steady state reference operating point for operating points within a control dead band defined for each respective converter station, and controlling the power flow by means of droop control in at least one of the converter stations upon detection of exceeding of an end point of one or more of the control dead bands.