Power conversion circuit having inrush current limiting resistor bypass
US-10483869-B1 · Nov 19, 2019 · US
Power converter
US2018302003A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018302003-A1 |
| Application number | US-201615769111-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 31, 2016 |
| Priority date | Nov 4, 2015 |
| Publication date | Oct 18, 2018 |
| Grant date | — |
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Abstract
Official abstract text for this publication.
Since a power converter including a modular multilevel converter uses a large number of cells each combining a plurality of switching elements and a DC capacitor, there is a problem of conduction loss due to the switching elements. The conduction loss is reduced by connecting a bypass circuit between terminals of each of the cells, controlling to open and close the switching element, and controlling to short-circuit the bypass circuit connected to the cell controlled to output zero voltage.
First claim
Opening claim text (preview).
1 . A power converter comprising: a modular multilevel converter in which a plurality of cells each having a switching element are connected to each other; a bypass circuit connected between terminals of the cell; and a controller for controlling to open and close the bypass circuit in synchronization with an open/closed state of the switching element of the cell. 2 . The power converter according to claim 1 , wherein the controller has a control mode of opening and closing the bypass circuit when the cell operates normally. 3 . The power converter according to claim 1 , wherein the cell comprises a break circuit and the controller controls to break, the break circuit when the bypass circuit is short-circuited. 4 . The power converter according to claim 1 , wherein the bypass circuit comprises a switching element and the switching element of the bypass circuit is made of a semiconductor element.
Assignees
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Classifications
using a control circuit common to several phases of a multi-phase system · CPC title
arranged for operation in parallel · CPC title
with automatic control of the output voltage or current · CPC title
using discharge tubes with control electrode or semiconductor devices with control electrode · CPC title
in a bridge configuration · CPC title
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Frequently asked questions
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- What does patent US2018302003A1 cover?
- Since a power converter including a modular multilevel converter uses a large number of cells each combining a plurality of switching elements and a DC capacitor, there is a problem of conduction loss due to the switching elements. The conduction loss is reduced by connecting a bypass circuit between terminals of each of the cells, controlling to open and close the switching element, and contro…
- Who is the assignee on this patent?
- Mitsubishi Electric Corp, Toshiba Mitsubishi Elec Ind
- What technology area does this patent fall under?
- Primary CPC classification H02M7/1623. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 18 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).