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A Control Method for Automatic Flushing of Transformer Cooler

A control method and automatic flushing technology, applied in the direction of electrical program control, sequence/logic controller program control, etc., can solve the problems of difficult control of oil pressure and flow rate, low efficiency, and difficult detection of pipeline pressure, etc., to achieve Guaranteed pressure effect

Active Publication Date: 2018-01-19
SHANDONG POWER EQUIP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The currently used flushing method is mainly to manually flush the cooler through the oil connection pipe of the oil filter unit, and the manual control method is extremely low in efficiency, and the oil pressure and flow rate are not easy to control during flushing, and the pressure in the pipeline is abnormal when the equipment fails. not easily detected

Method used

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  • A Control Method for Automatic Flushing of Transformer Cooler
  • A Control Method for Automatic Flushing of Transformer Cooler

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] A control method for automatic flushing of transformer coolers, such as figure 1 shown, including the following steps:

[0018] Step 1: After the system starts the main program, the PLC controller monitors the pressure value transmitted by the pressure sensor installed in the flushing device in real time;

[0019] Step 2: If the monitoring result is abnormal, switch on and off to enter the adjustment procedure: collect the pressure value of the pressure sensor, use the predictive control algorithm to predict and judge the change trend of the pressure value, and use the fuzzy PID algorithm to adjust the electric valves to adjust the pipeline pressure until If the test result is normal, turn off the interrupt and go to step 3; if the test result is normal, go directly to step 3;

[0020] Step 3: Select the operation mode: automatic mode or manual mode;

[0021] Step 4: According to the selected operation mode, carry out the following process in sequence: install the coo...

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Abstract

The invention provides a method for controlling automatic flushing of a transformer cooler. The method comprises the following steps of acquiring a pressure value of a pressure sensor arranged in an oil washing pipeline by use of a PLC (Programmable Logical controller); performing predictive judgment on the change trend of pressure values of the pipeline by use of a predictive control algorithm; and controlling a value by use of a fuzzy PID (Proportion Integration Differentiation) algorithm. By aiming at automatic control over processes such as oil submerged pump circulation, filter press circulation and cooler oil drainage, automatic flushing of the cooler is finished, and the method appears for the first time; predictive judgment is performed on the change trend of pressure values of the pipeline, so as to ensure that the internal pressure of the pipeline is smooth and stable, and faults generated in a flushing device can be detected in time.

Description

technical field [0001] The invention relates to a method for flushing a transformer cooler, in particular to a control method for automatically flushing a transformer cooler. Background technique [0002] The currently used flushing method is mainly to manually flush the cooler through the oil connection pipe of the oil filter unit, and the manual control method is extremely low in efficiency, and the oil pressure and flow rate are not easy to control during flushing, and the pressure in the pipeline is abnormal when the equipment fails. Not easily detected. Contents of the invention [0003] In view of the above problems, the present invention provides a time-saving and labor-saving control method for automatic flushing of the transformer cooler, which is convenient for detecting the pipeline pressure and can be adjusted in time. [0004] In order to solve the above problems, the technical solution adopted by the present invention is: a control method for automatic flush...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
CPCG05B19/05
Inventor 刘宗振谈翀严子红仇辉刘子婷韩志伟任彬赵强张勇傅春明秦伟马振芳姜良刚
Owner SHANDONG POWER EQUIP