Hydropower station in-situ PLC control and measurement and control protection integrated cabinet

Abstract

The invention discloses a hydropower station in-situ PLC control and measurement and control protection integrated cabinet which comprises a cabinet body, an alternating current and direct current dual-power supply device, an in-situ programmable logic controller, a touch screen, an in-situ control panel, an output relay module, a microcomputer protection device and a network component are mounted in the cabinet body and are sequentially arranged between a front guide rail and a rear guide rail of the cabinet body according to a high-low sequence, and the cabinet body is divided into 0 to 45U according to an assembling space from top to bottom. According to the invention, the in-situ monitoring and control operation of the unit is realized, the accurate measurement and display of the electrical quantity of the unit are realized, the in-situ control and protection measurement and control functions which can be completed by two sets of cabinets in the past are completed through one set of cabinet, the integration uniformity and reliability of the whole control system are greatly improved, and the design advancement of the whole control system is improved; and the investment of the cabinet and wiring is saved, and a simple and convenient overall solution is provided for on-site design and construction.

Description

technical field [0001] The invention relates to the technical field of an integrated cabinet of a hydropower station, in particular to an integrated cabinet for on-site PLC control and measurement, control and protection of a hydropower station. Background technique [0002] At present, hydropower stations generally set up the computer monitoring system and the relay protection system separately, and the local control unit is arranged independently next to the generator, and placed side by side with the governor, excitation system and auxiliary system in a group cabinet, and a relay protection room is also set up , separately set up the relay protection cabinet of the whole plant. As a result, the distance between the relay protection device of the unit and the local control unit is relatively long, and data communication interaction cannot be realized reliably and in a timely manner. At the same time, it is not convenient for related work such as relay protection parameter ...

AI Technical Summary

Problems solved by technology

As a result, the distance between the relay protection device of the unit and the local control unit is relatively long, and data communication interaction cannot be realized reliably and in a timely manner. At the same time, it is not convenient for related work such as relay protection parameter setting, measurement and control data observation and comparison, etc. Debugging and experimentation cause unnecessary trouble

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