Intelligent control system and method for medium and small hydropower station

Abstract

The present invention is an intelligent control system and method for small and medium-sized hydropower stations. It is provided with a remote control layer, a station control layer, and at least one single unit control layer, wherein the single unit control layer is provided with an LCU layer and a sensor layer. The LCU layer is composed of at least two functional LCU controllers, each of which is connected to a sensor group at the input of the functional LCU controller. network, forming the LCU layer, the first communication end of the station control layer is connected to the EtherCAT real-time Ethernet, and the second communication end is connected to the remote control layer; the control method of the intelligent control system of the small and medium-sized hydropower station It is an intelligent control system for small and medium-sized hydropower stations that adopts a publish / subscribe mechanism to establish a unified information platform for the whole station to realize the sequential logic control and synchronous chain adjustment control functions of the intelligent hydropower station control system.

Description

technical field [0001] The invention relates to the field of hydropower station control equipment, in particular to an intelligent control system and method for small and medium-sized hydropower stations. Background technique [0002] In order to implement the overall deployment of energy saving and emission reduction in the "Twelfth Five-Year Plan" and the State Council's instructions on increasing the efficiency and expansion of rural hydropower, the new generation of hydropower stations characterized by informatization, automation and interaction have been fully promoted, marking the The automation system of small and medium-sized hydropower stations is moving towards the direction of intelligent development. As an important green energy in the smart grid, small and medium-sized hydropower stations will comprehensively promote hydropower efficiency and capacity expansion, and improve the level of automation and informatization. important role in economic development. ...

AI Technical Summary

Problems solved by technology

[0003] Although the automation construction of small and medium hydropower stations has been able to initially realize the automatic control system characterized by microcomputer protection and PLC, the data acquisition, transmission, and processing modes are carried out in the form of cable hard nodes or the master-slave communication mode of fieldbus technology, and the equipment cannot be directly connected to each other. For communication, information must be collected repeatedly, information sharing cannot be realized, and coordinated adjustment and control cannot be achieved. Repeated adjustments are required, resulting in unstable power generation

The information exchange and communication of the entire system of the hydropower station mostly use cables to transmit signals, and the efficiency of information transmission is low

Due to the inability to conduct real-time online monitoring of the LCU operating parameters in the hydropower station, the hydropower station can only be shut down for maintenance on a regular basis, resulting in a huge waste of water resources

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