Parallel feeders for continued operation
US-2024310424-A1 · Sep 19, 2024 · US
Star-point reactor
US8994232B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8994232-B2 |
| Application number | US-201013384373-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 6, 2010 |
| Priority date | Jul 17, 2009 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A device for inverting an electric parameter in the field of power transmission and distribution has a converter that can be connected between an alternating current grid and a DC circuit and having power semiconductor valves extending between an alternating current connection and a DC voltage connection. Each power semiconductor valve has a series circuit of bipolar submodules, each with an energy storage device and a power semiconductor circuit in parallel with the energy storage device, and a grid connection unit connected to the alternating current connection for connecting to the alternating current grid. Simple, effective, and inexpensive symmetrization of the voltages in the DC voltage circuit relative to ground potential is brought about. A star point reactor is connected between the grid connection unit and the inverter with a potential node, including throttle coils connected to a grounded star point. The throttle coils are implemented so that said coils implement a current path with a high impedance to ground potential for alternating current at the base frequency of the alternating current grid, and with low impedance to ground potential for DC current.
First claim
Opening claim text (preview).
The invention claimed is: 1. An apparatus for converting an electrical variable in an energy transmission and distribution system, the apparatus comprising: a converter to be switched between an AC voltage system and a DC voltage circuit, converter having power semiconductor valves extending between an AC voltage connection and a DC voltage connection, each of said semiconductor valves including a series circuit with bipolar submodules each having an energy storage device and a po…
Assignees
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Classifications
Electricity · mapped topic
- H02J3/36Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8994232B2 cover?
- A device for inverting an electric parameter in the field of power transmission and distribution has a converter that can be connected between an alternating current grid and a DC circuit and having power semiconductor valves extending between an alternating current connection and a DC voltage connection. Each power semiconductor valve has a series circuit of bipolar submodules, each with an en…
- Who is the assignee on this patent?
- Armschat Christoph, Dommaschk Mike, Hussennether Volker, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H02J3/36. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).