Intelligent integrated control system and intelligent integrated control method based on serial communication for submerged pump

Abstract

The invention discloses an intelligent integrated control system and an intelligent integrated control method based on serial communication for a submerged pump, and belongs to the technical field ofintelligent control for submerged pumps. The control system comprises a shore-based upper computer system and underground submersible pump systems which are connected through serial communication wirecables. Each underground submersible pump system is composed of an impeller assembly, a motor and a printed circuit board, wherein the printed circuit board is integrated with an IGBT rectification-inversion module, a motor drive module, a sensor input module and a serial communication port. Each underground submersible pump system sends the internal vibration data, temperature and humidity dataand leakage-point detection sensor data to an upper computer controller in real time, and receives the instructions of the upper computer controller. The intelligent integrated control system is highin integration degree, convenient to install and automatic in control, thereby greatly lowering the labor intensity of personnel, and increasing the working efficiency. The intelligent integrated control method based on serial communication for the submerged pump is based on a multi-sensor fusion technology, and a PID control technology for the rotational speeds and the currents of the motors, thereby meeting the requirements of independent variable-frequency speed regulation and fault detection for the submerged pump.

Description

technical field [0001] The invention relates to the technical field of intelligent control of submersible pumps, in particular to an intelligent integrated control system and control method for submersible pumps based on serial port communication. Background technique [0002] As a combination of a submersible motor and a water pump, the submersible pump for wells is mainly used to extract groundwater from wells for irrigation of farmland or water for humans and animals. It can also be widely used in construction, environmental protection, urban and mine drainage. Although submersible pumps have the advantages of wide applicability, compact structure, and convenient use, traditional submersible pumps also have hidden dangers such as leakage, phase failure, and large current overload, especially when the water level is too low. It will greatly reduce the service life of the motor. At the same time, when the submersible pump works in a deep well or underground, the daily main...

AI Technical Summary

Problems solved by technology

In the above method, the first controller is externally placed on the shore, the controller is easily damaged by external electromagnetic interference or damp, and there are too many external wiring harnesses between the controller and the pump body, which poses certain safety hazards

The second method introduces the installation structure of the built-in frequency conversion controller, lacks the integrated control method of the detection sensor and the means of communication with the shore control cabinet, the operation safety of the submersible pump is completely dependent on the built-in controller, which is not conducive to the long-term management of the pump and the submersible Data analysis of each sensor in the pump

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