Design method of detecting system for telecontrol remote terminal unit (RTU) and information channel

Abstract

In a design method of a detecting system for a telecontrol remote terminal unit (RTU) and an information channel, a structure of the detecting system for the telecontrol RTU and the information channel is confirmed to be a distributed control system, each converting station is provided with a front terminal machine, one industrial control computer is used for centralized management control in an electric power dispatching center, a circuit switched data (CSD) communication mode of a global system for mobile communications (GSM) is applied, bidirectional data communication between a field main control unit and a monitoring center is achieved, and alarm information is transmitted to a mobile phone of a manager through a short message. After a central processing unit (CPU) is first initiated, information channel data of telemetering, remote signaling and carrier frequency are respectively collected, and then malfunction distinguishing is operated according to related principles, if the system is abnormal, a GSM module is started to send malfunction information to a background monitoring center. The design method of the detecting system for the telecontrol remote terminal unit (RTU) and the information channel has the advantages that the detecting system for the telecontrol RTU and the information channel is used for monitoring conditions of voltages and currents of the RTU and other devices, functions of the remote signaling and the remote control are achieved, remote operations to the RTU and other devices are available, and data used in the process of operations is stored in a data base for future reference.

Description

technical field [0001] The invention relates to the technical field of control systems, in particular to a design method for a telecontrol RTU and a channel detection system. Background technique [0002] During the operation of the substation, real-time monitoring is required by the remote power dispatching center. Upload relevant operating parameters and status information to the dispatching center through channels, optical fiber cables, etc., and send control instructions to the RTU of the substation. [0003] However, in this operation process, it often occurs that the substation loses signal contact with the power dispatching center for some reason, and the power dispatching center cannot judge whether the RTU operation of the substation is wrong and the RTU system crashes, so that the data cannot be uploaded, or Communication failed due to channel failure. As a result, system management and safety production are affected or even accidents occur. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0003] However, in this operation process, it often occurs that the substation loses signal contact with the power dispatching center for some reason, and the power dispatching center cannot judge whether the RTU operation of

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