Farmland irrigation canal head motor frequency conversion speed regulation control system

Abstract

A farmland irrigation canal head motor frequency conversion speed regulation control system comprises a frequency conversion speed regulation control system, a power supply subsystem, a canal head motor, a pipe pressure sensor and a remote control terminal. The frequency conversion speed regulation control system is used for controlling the rotating speed of a headstock motor and comprises an MCU controller, a touch screen, an optical coupling isolation relay, a frequency converter and a wireless communication module. The power supply subsystem is used for voltage conversion and supplying power to electrical components, a headstock motor and a pipe pressure sensor of the variable-frequency speed regulation control system. The variable-frequency speed regulation control system comprises an alternating-current transformer, a direct-current transformer and a voltage reduction module. The pipe pressure sensor is used for collecting pipeline pressure, and the MCU controller adjusts the frequency of the frequency converter according to a pipe pressure signal so as to change the rotating speed of the motor; the remote control terminal is used for an operator to remotely control and adjust the rotating speed of the motor. The pipe pressure sensor and the frequency converter are used for achieving automatic adjustment of the rotating speed of the canal head motor, the irrigation efficiency is guaranteed, and the problem of pipe explosion caused by too large pipeline water pressure is solved.

Description

technical field [0001] The invention relates to a frequency conversion speed regulation control system for a farmland irrigation canal head motor, which belongs to the technical field of farmland smart irrigation. Background technique [0002] Farmland irrigation is an important part of agricultural production and plays a vital role in the production of crops. In the irrigation process, the canal head motor drives the water pump to realize the extraction and transportation of farmland irrigation water. At present, the control of most of the canal motors in our country is still manual opening and closing control of the motors, and the degree of automation is not high. For the canal motors located in remote locations, it is necessary to turn off one by one, which cannot be controlled remotely. To a certain extent, increasing the This reduces the workload of farmers and reduces irrigation efficiency. [0003] At the same time, the traditional irrigation method has the followi...

AI Technical Summary

Problems solved by technology

At present, the control of most of the canal head motors in my country is still manually opened and closed, and the degree of automation is not high. For the canal head motors that are located far away, they need to be closed one by one, and remote control cannot be controlled. To a certain extent, increase Reduce the workload of farmers and reduce irrigation efficiency

[0003] At the same time, the traditional irrigation method has the following problems: 1. During irrigation, the online monitoring of pipeline pressure cannot be realized; 2. Since the frequency of the canal head motor is fixed and the motor speed is within a fixed range, the speed adjustment of the canal head motor cannot be realized; 3. 2. During the irrigation process, due to the unstable water supply, when the water supply is insufficient, the irrigation efficiency is low. When the water supply is sufficient and the pipeline is not smooth, it is easy to cause a pipe burst accident. The head motor cannot adjust the motor speed in real time according to the pipe pressure signal to adjust the pipeline. Stress, which may lead to economic losses and delays in agricultural production in severe cases

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