Longitudinal voltage source and direct current transmission system with a longitudinal voltage source

US10714939B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Mark-Matthias Bakran · Erlangen, DE
• Viktor Hofmann · Bayreuth, DE

Key dates

• Filing date: Dec 21, 2015
• Grant date: Jul 14, 2020
• Expiry date: Jul 24, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/60
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A longitudinal voltage source interconnects into a first line and a second line and feeds a longitudinal voltage into each of the two lines. The voltage source has first and second H-bridge circuits, each with four switches, and with outer terminals and center terminals. The center terminals are connectable to disconnected locations of the first and second lines. A capacitor has a first capacitor terminal connected to the two first output terminals of the two H-bridge circuits and a second capacitor terminal connected to the two second output terminals of the two H-bridge circuits. One or more switching modules are connected between the first capacitor terminal and the first output terminals of the first and second H-bridge circuits, and one or more switching modules are connected between the second capacitor terminal and the second output terminals of the first and second H-bridge circuits.