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Converter cell for cascaded converters and a control system and method for operating a converter cell
US8942014B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942014-B2 |
| Application number | US-201213619047-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 14, 2012 |
| Priority date | Mar 18, 2010 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A cascaded electric power converter and a method of operating a cascaded electric power converter are disclosed. The cascaded converter includes: a converter cell including a cell capacitor and at least one phase leg having at least two electric valves, the at least one phase leg being connected in parallel to the cell capacitor; and a control system for controlling the switching of the electric valves of the at least one phase leg. The control system is configured to, upon detection of a need to by-pass the converter cell, control the switching of the electric valves in a manner so that the cell capacitor is short circuited via a phase leg, so as to obtain a current surge through the phase leg, thereby creating a permanent current path through the converter cell.
First claim
Opening claim text (preview).
What is claimed is: 1. A cascaded electric power converter comprising: a converter cell including a cell capacitor and at least one phase leg having at least two electric valves, the at least one phase leg being connected in parallel to the cell capacitor, the at least two electric valves each having a unidirectional switch, the converter cell further comprising a clamping circuit connected so as to limit voltage across the valves while switching off the valves; a control system…
Assignees
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Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H02M7/797Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8942014B2 cover?
- A cascaded electric power converter and a method of operating a cascaded electric power converter are disclosed. The cascaded converter includes: a converter cell including a cell capacitor and at least one phase leg having at least two electric valves, the at least one phase leg being connected in parallel to the cell capacitor; and a control system for controlling the switching of the electri…
- Who is the assignee on this patent?
- Norrga Staffan, Dijkhuizen Frans, Jonsson Tomas, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H02M7/797. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 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).