System for achieving intelligent control of transformer cooler group based on double closed loops

Abstract

The invention relates to a system for achieving the intelligent control of a transformer cooler group based on double closed loops, and the system comprises a central management module, a plurality of motor control protection modules, and a transformer data sampling module, wherein each motor control protection module is corresponding to one cooler motor of the cooler group in a one-to-one manner, and is used for collecting the operation data of the corresponding cooler motor and feeding back the operation data to the central management module. The transformer data sampling module is used for collecting the operation data of a transformer and feeding back the operation data to the central management module. The central management module is used for managing and controlling the operation states of all coolers in the cooler group according to the operation data of the transformer and the operation data of all cooler motors. The system achieves the precise control of the oil temperature of the transformer and loads and the precise determining of a fault point of the coolers, improves the automation degree of the control of the coolers of the transformer, and is wider in application range.

Description

technical field [0001] The invention relates to the field of electromechanical control, in particular to the field of transformer cooler control, and specifically refers to a system for realizing intelligent control of transformer cooler groups based on double closed loops. Background technique [0002] At present, most domestic control systems for large-scale transformer forced oil circulation air-cooled equipment are relay-type air-cooled control systems. The control and protection of this control mode are still realized by electromechanical logic loops. Devices, contactors, thermal relays and fuses and other components. [0003] Since the relay-type air-cooled control circuit is composed of various circuit breakers, contactors, thermal relays and fuses, there are many defects in its operation. For example, the main circuit drive of the submersible oil pump and cooler fan adopts Contactor, so there are many mechanical contacts, the circuit composition is complex, and the ...

AI Technical Summary

Problems solved by technology

However, in the actual application process, the functions realized by the PLC are relatively simple, and the interface operation is not friendly. The on-site operators are not familiar with the technical details of the PLC, and the troubleshooting of the fault is slow, or even difficult to start, which affects the timely troubleshooting and handling of the cooler system fault.

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