Online switch-off device and method for hybrid direct-current transmission system converter
A power transmission system, hybrid DC technology, applied in power transmission AC network and other directions, can solve problems such as lack of versatility
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0094] The control unit specifically performs the following steps when the discrimination unit detects that the hybrid direct current transmission system needs to perform an online exit operation of the converter:
[0095] The rectifier performs the following steps:
[0096] (1) Control the operation of the rectification converter station to increase the trigger angle to 90 degrees or more;
[0097] (2) Control the thyristor bypass pair in the rectifier station;
[0098] (3) The parallel bypass switch of the thyristor converter in the combined rectification and converter station;
[0099] (4) Blocking the thyristor converter of the rectification converter station;
[0100] (5) Control the parallel switch and knife switch assembly of the thyristor converter in the rectification converter station to isolate the converter;
[0101] The inverter station performs the following steps:
[0102] (21) Blocking the voltage source converter of the inverter converter station;
[0103...
Embodiment 2
[0106] The control unit specifically performs the following steps when the discrimination unit detects that the hybrid direct current transmission system needs to perform an online exit operation of the converter:
[0107] The rectifier performs the following steps:
[0108] (1) Control the operation of the rectification converter station to increase the trigger angle to 90 degrees or more;
[0109] (2) Control the thyristor bypass pair in the rectifier station;
[0110] (3) The parallel bypass switch of the thyristor converter in the combined rectification and converter station;
[0111] (4) Blocking the thyristor converter of the rectification converter station;
[0112] (5) Control the parallel switch and knife switch assembly of the thyristor converter in the rectification converter station to isolate the converter;
[0113] The inverter station performs the following steps:
[0114] (31) When the DC current is lower than the threshold value, the parallel bypass circui...
Embodiment 3
[0128] The online exit method of the converter includes the following steps. After obtaining the online exit signal of the converter in the hybrid direct current transmission system, the rectifier station performs the following steps:
[0129] (1) Control the operation of the rectification converter station to increase the trigger angle to 90 degrees or more;
[0130] (2) Control the thyristor bypass pair in the rectifier station;
[0131] (3) The parallel bypass switch of the thyristor converter in the combined rectification and converter station;
[0132] (4) Blocking the thyristor converter of the rectification converter station;
[0133] (5) Control the parallel switch and knife switch assembly of the thyristor converter in the rectification converter station to isolate the converter;
[0134] The inverter station performs the following steps:
[0135] (21) Blocking the voltage source converter of the inverter converter station;
[0136] (22) When the DC current is low...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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