Redundant transmission of data message for the control technology of HVDCT systems

A technology of high-voltage direct current transmission and data telegraphy, applied in transmission systems, digital transmission systems, electrical components, etc.

Inactive Publication Date: 2008-06-04
SIEMENS AG
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This known method has the disadvantage that in the event of interference a dead time of up to 10 seconds can result

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
  • Redundant transmission of data message for the control technology of HVDCT systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] FIG. 1 shows a schematic diagram of a connection network 1 of HVDC power transmission equipment. The HVDC system has a series of redundant protective devices 1 a , 1 b or control devices 2 a , 2 b for controlling components of the converter stations of the HVDC system (not shown). The components of the connection network 1 assigned to the first converter station are marked with reference numeral 3 .

[0019] Each protective device is connected via redundant connection channels 4 a and 4 b to operating stations 5 a and 5 b, which are likewise constructed redundantly. Operator stations 5 a and 5 b each have a screen unit 6 . Furthermore, the connection channels 4 a and 4 b also include so-called switches 7 and routers 8 , which simplify addressing in the data exchange. The components of the connecting network 3 assigned to the first converter station are connected to the connecting network 1 assigned to the high voltage via connecting lines 9 a and 9 b , which are shown...

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

A method for securely transmitting data messages in an HVDCT system. Each transmitting unit is connected to each receiving unit via at least two connection channels. Each data message includes a message counter that uniquely characterizes the data message, and each transmitting unit transmits the data message to each receiving unit via all of the connection channels. Each receiving unit calculates a comparison counter and compares it with the message counter in the received data message. If the message counter and the comparison counter do not match, a repetition request is transmitted to the transmitting unit for the purpose of transmitting a message counter that corresponds to the comparison counter. After the repetition request has been received, the transmitting unit accesses a transmission buffer, and the data message whose message counter corresponds to the comparison counter of the repetition request is transmitted via all of the connection channels.

Description

technical field [0001] The invention relates to a method for the reliable transmission of data telegrams between at least one sending unit and at least one receiving unit of a HVDC installation (HG installation), wherein each sending unit communicates with at least two connection channels Each receiving unit is connected, wherein each data telegram is equipped with a telegram counter that unambiguously marks the data telegram, and each sending unit sends the data telegram to each receiving unit via all connection channels, wherein a The telegram counter is calculated by the incrementing rule for the timing of the sending of the data telegram, whereas each receiving unit calculates the comparison counter using the same incrementing rule for the timing of the reception of the data telegram. Background technique [0002] Such methods are already known from the general prior art. For example, the transmitting and receiving units of known high-voltage direct current transmissio...

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): H04L1/18
CPCH04L1/22H04L1/1835H04L1/1858
Inventor 安贾·阿克曼迈克尔·费斯特尔弗兰克·格雷纳
Owner SIEMENS AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap