Submersible pump switched reluctance motor control system and control method thereof

Abstract

The invention discloses a submersible pump switched reluctance motor control system and a control method thereof. The system comprises a power supply module, a switched reluctance motor, a power converter module, a controller module, a motor bus voltage sensor module, a motor bus current sensor module and a motor phase current sensor module. When a submersible pump works, the controller module receives a control instruction of an upper computer controller directly or through a serial port cable, and controls motor rotation speed and current; and meanwhile, the controller module realizes fault diagnosis and processing of the switched reluctance motor through detection and processing of sensor signals in the pump; torque unsmoothness due to unreasonable parameter setting and error tracking delay and the like in a conventional PID control algorithm is thoroughly eliminated; and the controller helps to improve system efficiency, meets requirements for low speed large starting torque, middle speed high efficiency and wide constant power range for the motor of the submersible pump, and can enable the switched reluctance motor to be widely applied in the submersible pump field.

Description

technical field [0001] The patent of the present invention relates to a motor control system for submersible pumps, more specifically to a switched reluctance motor control system for intelligent submersible pumps with communication functions, and also provides a switched reluctance motor control system for submersible pumps control method. Background technique [0002] Submersible pump is a combination of submersible motor and water pump. According to different purposes, submersible pumps for wells are mainly used to extract groundwater from wells, used for farmland irrigation or water for humans and animals, and can also be widely used in construction, environmental protection, urban and mine drainage. Therefore, the submersible electric pump has the advantages of wide applicability, compact structure and convenient use. The motors used in traditional submersible pumps mainly include AC induction motors and permanent magnet synchronous motor drive systems. However, the d...

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Problems solved by technology

[0005] The invention patent aims at various deficiencies of the existing AC induction motor and permanent magnet synchronous motor commonly used in submersible pumps, adopts switched reluctance motor as the main motor of submersible pump, and adopts a control method based on adaptive backstepping sliding mode algorithm Solving Vibration and Noise Problems Existing in Switched Reluctance Motors

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