Intelligent control system for electric roller

Abstract

The invention belongs to the technical field of electric rollers, and particularly relates to an intelligent control system for an electric roller. The intelligent control system comprises an electric roller and a control device thereof, and a temperature sensor and an encoder are installed on a motor of the electric roller; the control device comprises a field control box, a remote control cabinet and an upper computer; an asynchronous servo driver, a temperature transmitter, a remote control receiver, a cloud box and a field PLC are arranged in the field control box; a temperature controller, a cloud server and a remote PLC are arranged in the remote control cabinet; and the motor and the encoder are connected with the asynchronous servo driver, the temperature sensor is electrically connected with the temperature controller through the temperature transmitter, and a remote control transmitter is arranged on the periphery of the field control box. According to the control system, precise servo control over variables such as the position, speed and acceleration of the alternating-current asynchronous motor of the electric roller is achieved, the torque instantaneous overload capacity is improved, the motor replacement cost is saved, cloud monitoring and control, a local remote control mode and / or wireless remote control, and motor temperature monitoring and alarming are realized.

Description

technical field [0001] The invention belongs to the technical field of electric drums, in particular to an intelligent control system for electric drums. Background technique [0002] With the rapid development of the Internet of Things, more and more electric drums with high control precision and fast response are used in the belt conveyor system. Traditional electric drums mainly have two control methods, namely direct power frequency start and frequency conversion frequency modulation start. The power frequency starts directly, the control is simple and the speed cannot be adjusted, the equipment cannot realize the soft start and stop function, and there is a large waste of energy. Compared with industrial frequency control, frequency conversion control has certain advantages, that is, it realizes the functions of speed regulation and soft start and stop. However, low-speed torque and overload capacity have always been the weaknesses of frequency converter. [0003] In r...

AI Technical Summary

Problems solved by technology

The power frequency starts directly, the control is simple and the speed cannot be adjusted, the equipment cannot realize the soft start and stop function, and there is a large energy waste

Compared with industrial frequency control, frequency conversion control has certain advantages, that is, it realizes the functions of speed regulation and soft start and stop. However, low-speed torque and overload capacity have always been the weaknesses of frequency converters.

[0003] In recent years, servo drives that are more advanced and more precise than inverter control have been used more and more on electric drums. However, the existing servo drives have certain limitations, mainly in terms of position, speed and acceleration. The control of other variables is not ideal; in addition, the cost of servo motors is relatively high and the application is difficult, which is also an important factor restricting the popularization and application of servo motors

In addition, in the belt conveyor system, the number of electric drums is usually large and the layout is relatively scattered. The control mode of electric drums is simple and single, and the state parameters such as the operating temperature of each electric drum cannot be monitored in time. Too much, which increases the labor intensity of workers and affects the normal production order

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