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Encrypted remote control system for power distribution network

A technology of power distribution network and remote control system, which is applied in the transmission system, information technology support system, electrical components, etc., can solve the problems of distribution network automation system waste, hidden dangers of distribution network information security, and difficulty for operators to adapt to work. Small quantity, strengthened safety management work, beneficial to the effect of safety

Active Publication Date: 2017-11-07
XIAMEN YUANTONG ELECTRONICS TECH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the electric power industry is more and more inclined to the commercial operation mode. However, the existing power distribution network automation system does not take sufficient security measures, so that there are many hidden dangers of information security in the distribution network, resulting in the main station in the power distribution network system to the terminal. Information leakage, loss and theft are prone to occur in the process of sending remote control commands, or the communication transmission process from the master station to the terminal to obtain on-site data
On the other hand, if safety protection measures are taken for the existing power distribution network automation system, it is often necessary to carry out large-scale transformation and changes on the basis of the existing distribution network automation system, resulting in a large transformation workload and the existing power distribution system. The waste of the distribution network automation system, and the distribution network automation system after large-scale transformation is often difficult for operators who have adapted to the existing distribution network automation system

Method used

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  • Encrypted remote control system for power distribution network
  • Encrypted remote control system for power distribution network
  • Encrypted remote control system for power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1, based on the above-mentioned upgraded hardware system and software system, the encrypted remote control process of the power distribution network includes:

[0033] Step 1. After the master station initializes the safety protection terminal, the master station sends the public key message and the modulus message to the safety protection terminal;

[0034] Step 2, the master station encrypts the remote control command using the RSA algorithm to form an RSA remote command message and sends it to the security protection terminal;

[0035] Step 3, the security protection terminal uses the public key to decrypt the RSA remote command message and verify the signature; if the signature verification is correct, the security protection terminal sends the decrypted standard IEC60870-5-101 communication protocol or IEC60870 to the FTU terminal -5-104 communication protocol remote control message and reply a confirmation command message to the main station, if the sig...

Embodiment 2

[0037] Embodiment 2, this embodiment adds the time stamp content in step 2 of the above embodiment 1, the master station uses the RSA algorithm to encrypt the remote control command and time stamp and generates the RSA remote command message; in this embodiment, The encryption is from the seventh byte of the RSA remote command message to the end of the timestamp (including the timestamp). Due to the difference in encryption time, the timestamp in the RSA remote command message sent each time is also different. The digital signatures generated each time are also different. Correspondingly based on step 3 of Embodiment 1, the security protection terminal utilizes the public key to decrypt the RSA telegram message and also verifies the validity of the time stamp. If the verification is correct, the security protection terminal sends a message to the master station Reply the confirmation command message. If the verification is wrong, the security protection terminal will reply the...

Embodiment 3

[0038] Example three, please refer to figure 2 , on the basis of Embodiment 2, the terminal is also provided with a soft pressing board, which is a virtual remote signal, used to start or stop receiving remote control commands from the master station, the state of the soft pressing board can be set by the terminal itself or through the master Remote control command settings for the station. Then compared to the remote control process described in Embodiment 2, the master station needs to detect whether the soft press plate of the current terminal is in the input state before sending the RSA remote command message to the terminal. If the soft press plate is in the exit state, the master station It is necessary to issue the input command for the soft platen first, and then issue the RSA remote command message. That is, in the third embodiment, if the remote control command is to be executed successfully, three conditions need to be met: first, the time stamp is valid; second, ...

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Abstract

The invention discloses an encryption remote control system of a power distribution network. The encryption remote control system of the power distribution network comprises a master station, a safety protection terminal and an FTU terminal, one-way certification communication is carried out between the master station and the terminal by the adoption of an RSA, and the safety protection terminal and the FTU terminal are in communication and connection. The encryption remote control process of the power distribution network comprises the steps that (1), the master station sends a public key message and a modulus message to the safety protection terminal after the terminal is initialized; (2), the master station encrypts a remote control instruction through the RSA to form an RSA remote instruction message and then sends the RSA remote instruction message to the safety protection terminal; (3), the safety protection terminal decrypts and checks the RSA remote instruction message through a public key; (4), if the master station receives an extended definition of checking failure, the master station issues a public key to the terminal again. The safety of a power distribution automatic system is improved, safety management work of the power distribution automatic system is enhanced further, and safety of data transmission inside the power distribution network is guaranteed effectively.

Description

technical field [0001] The invention relates to the field of electric power distribution network, in particular to an encrypted remote control system for electric power distribution network. Background technique [0002] At present, the electric power industry is more and more inclined to the commercial operation mode. However, the existing power distribution network automation system does not take sufficient security measures, so that there are many hidden dangers of information security in the distribution network, resulting in the main station in the power distribution network system to the terminal. Information leakage, loss and theft are prone to occur during the communication and transmission process of sending remote control commands, or obtaining field data from the master station to the terminal. On the other hand, if safety protection measures are taken for the existing power distribution network automation system, it is often necessary to carry out large-scale tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H02J13/00
CPCH04L63/0428Y04S40/20
Inventor 李祖福陈金旺沈晓波刘骏腾
Owner XIAMEN YUANTONG ELECTRONICS TECH
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