Remote acquisition and communication system for power equipment data and method

Abstract

The present invention proposes a remote acquisition and communication system for power equipment data and method. The remote acquisition and communication system comprises: a substation RTU for centrally controlling field power equipment and acquiring field data; a remote dispatching master station which has a monitoring center network accessed to Ethernet; a wireless private network which is a private network unable to access the Internet, wherein each set of equipment for setting up the wireless private network has a fixed IP; firewall equipment which is connected between the monitoring center network and the wireless private network, wherein equipment in the monitoring center network accesses the wireless private network through the firewall equipment; and wireless routing equipment which is connected with the substation RTU and is configured to be connected to the wireless private network. The remote dispatching master station accesses the substation RTU through the wireless routing equipment after accessing the wireless private network, so as to remotely acquire the field data. According to the present invention, the remote acquisition and communication system for power equipment data and the method achieve that the dispatching master station remotely acquires data of the substation, are low in cost, and do not bring risks to substation production networks.

Description

Technical field [0001] The invention belongs to the collection technology of power equipment data, and particularly relates to a remote power equipment data collection communication system and method. Background technique [0002] The IEC60870-5-104 remote control protocol (hereinafter referred to as the IEC104 protocol) is suitable for Ethernet transmission data between the dispatching master station and the substation RTU (REMOTETERMINALUNIT, remote data terminal) or other equipment. According to the IEC104 protocol, the port number used by the substation RTU is 2404, and this port number has been confirmed by IANA (Internet Assigned Numbers Authority). When the dispatch master station wants to read power data from the substation RTU, the dispatch master station initiates a network connection and connects to port 2404 of the substation RTU. After the TCP / IP connection is established at both ends, data can be exchanged between the dispatch master station and the substation RTU ...

AI Technical Summary

Problems solved by technology

[0004] 1. The EMC monitoring center and the substation RTU are not at the same location. Due to limited conditions, it is impossible to build a wired network between the two, and data transmission needs to be carried out through a wireless network;

[0005] 2. Due to the provisions of the IEC104 protocol, the RTU of the substation belongs to the monitoring end of the network connection, waiting for the EMC monitoring center to initiate an active connection; and if the RTU of the substation is connected to the Internet through the network operator, its IP address is dynamically assigned. If the RTU of the substation and the EMC The monitoring center is not in the same network segment. In this case, the EMC monitoring center cannot connect to the substation RTU;

[0006] 3. In the case of the above 2, the current solution is to set up a collection device on the site of the substation. The collection device and the RTU of the substation are in the same local area network. After the collection device collects the power data from the RTU of the substation, it passes The Internet of the network operator sends the data back to the EMC monitoring center; this solution needs to add a collection device on the substation site, which increases the cost and introduces a potential failure point; in addition, because the collection device is connected to the RTU of the substation at the same time The network and the Internet of operators indirectly connect the production network of the substation with the Internet, which brings risks to the production network of the substation

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