Dispatching automation distributed multi-channel cluster extension communication system and method

Abstract

The invention discloses a dispatching automation distributed multi-channel cluster extension communication system and method, the system adopts a distributed data acquisition technology to carry out real-time data acquisition, a substation extension substation communication server cluster divides plant station data according to areas to which the plant station data belong, and respectively acquires plant station side real-time data to which a plant station communication server belongs. According to the dispatching automation system, the multi-channel and partition fault switching and synchronization technology is adopted, the integrity and reliability of data are guaranteed, the data communication quality is greatly improved through the communication system and the data collection method, the data uploading time is greatly shortened, the data link establishment time is greatly shortened after a substation data point table is modified, and the network load is effectively shared. The extension substation communication server is arranged on the centralized control side, so that the control and debugging steps of the centralized control side to the plant station side are greatly simplified, centralized control personnel and plant station personnel can communicate with one another, and the working difficulty of operation personnel and maintenance personnel is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of power dispatching communication, in particular to a dispatching automation distributed multi-channel cluster extension communication system and method. Background technique [0002] The traditional data collection method of the centralized control dispatching automation system is to set up several sets of master station communication servers on the centralized control side, and each set of master station communication servers is responsible for communicating with a factory station. The dispatching data network performs data communication based on the IEC60870-5-104 protocol. Among them, each master station communication server is generally configured with two communication hosts as active and standby each other. In order to improve system reliability, it can be configured as three or more hosts for redundancy. During operation, only one communication server of the master station is in the active state, c...

AI Technical Summary

Problems solved by technology

But in this way, for the centralized control center with many connected plants, more hosts need to be configured, and new communication servers need to be added to connect to new plants, which will greatly increase the system investment cost. In addition, the non-primary hosts low utilization and low reliability

With the continuous development of hydropower plants, the amount of data on the power station side is increasing, and the performance of using a single master station communication server for data collection can no longer meet the requirements

The above communication method has the following defects: (1) During data communication, only a single master station communication server is in the active state, and the huge amount of uplink data leads to excessive resource occupation. "Remote" data initialization takes too long, which affects the quality of data communication

(2) Based on the current "integrated regulation and control" working mode of hydropower plants, the operators on the station side should meet the working conditions of the centralized control side. If the traditional master station-dispatching data network-substation data communication mode is still adopted, the centralized control side During the control and debugging of the plant side equipment, it will greatly increase the work difficulty of the operators and maintenance personnel

Images