从今以后一起加油吧

今からそれを一緒に給油

The power distribution industrial control system, as the "last kilometer line" of power supply to the users of power enterprises, plays the role of a bridge between power supply enterprises and electricity customers. In the past, distribution network is an independent, closed industrial control system, but in recent years, with the deployment of intelligent terminals and the application of a variety of communication methods, the original closed system began to develop in the direction of open and connected. In the information transmission, data exchange is convenient and fast at the same time, but also with a lot of security risks. There have been cyber security attacks on industrial control systems at home and abroad, which have caused great losses to the national economy. At present, the power distribution industrial control system has not yet formed a more complete security protection system, industrial control system network security incidents occur from time to time, power distribution industrial control system in the process of information transmission there is a risk of being monitored, stolen and tampered with. The network security protection of industrial control system has been incorporated into the strategic goal of national development, as the last line of defense of the communication user of the power system, and it is of practical significance to carry out the network security protection of the power distribution and control system.<br>In this paper, the industrial control system network as the background, for the distribution of industrial control network information security research. First of all, the distribution network business is analyzed, summarized the distribution network data transmission characteristics. The security protection system of distribution network is proposed for the possible safety risks in the transmission of distribution network data, and the corresponding security protection strategy of distribution network is worked out. Secondly, the distribution control network and the traditional Internet network are compared, the data characteristics of the power distribution network flow data, and combined with the current development trend of the Power Distribution Internet of Things, the distribution network business process involved in the IEC 104 protocol and MQTT protocol research, analysis of the distribution network generated the cause of traffic anomalies, Based on the current network traffic anomaly detection method, from the point of view of power distribution and control network, the flow anomaly detection method applicable to power distribution industrial control network is proposed. Finally, the system design and implementation of the traffic anomaly detection model are carried out and tested by the specific test.<br>Based on the analysis of the original distribution network agreement, this paper studies and analyzes the MQTT protocol used in the power distribution Internet of Things, calculates the traffic threshold of distribution network business, and carries out experimental tests on the traffic anomaly detection of distribution network through the model established, and achieves the purpose of the abnormal detection of power distribution and control network flow. Ensure that the power distribution control system operates safely and steadily.

これからも一緒に頑張りましょう。<br>