Parallel inverter systems and methods
US-2024014751-A1 · Jan 11, 2024 · US
Multilevel power converter
US9106074B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9106074-B2 |
| Application number | US-201313765903-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 13, 2013 |
| Priority date | Apr 2, 2012 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
Aspects of the invention address a circumstance in multilevel power converter devices having a bidirectional switch connected to a middle point of a DC power supply assembly, whereby interruption of the device may cause break down of semiconductor switches due to overvoltage if the semiconductor switches are totally interrupted simultaneously. In some aspects, a shut down procedure of a multilevel power converter device having a bidirectional switch connected to the middle point of a DC power supply assembly, gates of semiconductor switches are interrupted one by one according to a predetermined sequence or a sequence corresponding to the conditions of voltage and current at that moment with a time interval, and finally the bidirectional switch connected to the middle point of a DC power supply assembly is interrupted. As a result, a transition from an operating state to a shut down state can be made with minimum voltage variation.
First claim
Opening claim text (preview).
What is claimed is: 1. A multilevel power converter, for converting DC power to AC power or AC power to DC power, comprising: a DC power supply assembly having a positive terminal, a negative terminal, and a middle point terminal at a middle electric potential between the positive terminal and the negative terminal; and a circuit for one phase including: a series-connected semiconductor switch circuit of at least four semiconductor switches each having an antiparallel-connected…
Assignees
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Classifications
- H02M7/487Primary
Electricity · mapped topic
Electricity · mapped topic
- H02H7/1203Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9106074B2 cover?
- Aspects of the invention address a circumstance in multilevel power converter devices having a bidirectional switch connected to a middle point of a DC power supply assembly, whereby interruption of the device may cause break down of semiconductor switches due to overvoltage if the semiconductor switches are totally interrupted simultaneously. In some aspects, a shut down procedure of a multile…
- Who is the assignee on this patent?
- Fuji Electric Co Ltd, Fuji Electric Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02M7/487. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 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).