Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Converter system and method for operating such a converter system

A technology of converter, DC voltage, applied in the field of converter system

Active Publication Date: 2013-04-10
HITACHI ENERGY LTD
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with such a short-circuit circuit with thyristors, it is not possible in a short time to return to normal operation regulated by the converter unit as soon as the current has decreased to a tolerable value,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Converter system and method for operating such a converter system
  • Converter system and method for operating such a converter system
  • Converter system and method for operating such a converter system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] FIG. 1 shows a first embodiment of a converter system according to the invention, in particular for switching three voltage levels. The converter system according to the invention for switching generally at least three voltage levels comprises a converter unit 1 to which a direct voltage circuit 2 is connected on the direct voltage side, the direct voltage circuit 2 having Voltage zero point NP, and a short circuit 3 is connected to the AC voltage side of the converter unit. The shorting circuit 3 has a plurality of thyristors and at least two shorting resistors R CRB. An exemplary embodiment of a thyristor circuit of the short circuit 3 is shown in FIG. 4 . According to the invention, a voltage limiting unit 4 for limiting the overvoltage of the DC voltage circuit 2 is connected to the DC voltage circuit 2, wherein the voltage limiting unit 4 is connected to at least two short-circuit resistors R CRB connect. Typically, the voltage limiting unit 4 is used to limit ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a converter system for switching at least three voltage levels and for switching two voltage levels. The invention further relates to a method for operating a converter system for switching at least three voltage levels and for operating a converter system for switching two voltage levels.

Description

technical field [0001] The present invention relates to the field of power electronics. The invention relates to a converter system according to the preambles of the independent claims and to a method for operating such a converter system. Background technique [0002] Converter systems are used in a large number of applications today. Typically, the converter system comprises a converter unit, to which a DC voltage link is connected on the DC voltage side. On the AC voltage side of the converter unit, usually an AC grid and / or an electrical load, such as a rotating electrical machine or a transformer, can be connected, wherein every type of electrical load is conceivable. In addition, depending on the application, a short circuit is usually also connected on the AC voltage side. Converter systems with short-circuit circuits of the above-mentioned type are disclosed, for example, in US 2005 / 0281065 A1 and in US 2007 / 0291426 A1. In the event that the current carrying capa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/10H02P9/00
CPCH02M1/32H02M7/483H02P9/007H02H7/122
Inventor B.奥德加尔德C.绍布C.希尔贝格S.奥贝特
Owner HITACHI ENERGY LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com