Switched reluctance motor detection system and control method thereof

Abstract

The invention, which belongs to the field of motor control, discloses a switched reluctance motor detection system and a control method thereof. The detection system comprises a power supply, a powerconverter, an infrared thermal imaging detector, an encoder, an SOC controller, a drive circuit, a sampling circuit and a display / touch screen. When a switched reluctance motor is in normal operation,the detection system uses the infrared thermal imaging detector to monitor the temperature of each component in the motor in real time; when the internal temperature of the motor is detected to exceed a limit or to be abnormal, the shutdown operation is carried out in time or the running state of the motor is changed in time, so that faults are cut off timely and conveniently and the motor reaches an optimal running state effect. Meanwhile, the infrared thermal imaging detector and the switched reluctance motor are controlled in a unified mode to realize closed-loop control over the internaltemperature of the motor, so that the whole system is made to work in the optimal operation state. The system has advantages of high reliability, high economy, and great convenient in operation and maintenance.

Description

technical field [0001] The invention belongs to the field of motor control, in particular to a detection system and a control method of a switched reluctance motor. Background technique [0002] Switched reluctance motors have the advantages of simple and solid structure, low cost, etc., suitable for high-speed, variable load operation, and are widely used in aviation industry, electric vehicles, pumping units, household appliances and other fields. During the operation of the switched reluctance motor, due to the existence of high room temperature, poor heat dissipation, overload, overvoltage, undervoltage or voltage imbalance, frequent start and stop or frequent forward and reverse rotation, lack of phase, broken fan or blocked air inlet and outlet, and lack of bearing Oil, mechanical jamming and stalling, excessive load moment of inertia, long start-up time, short circuit between turns, incorrect internal wiring of the new motor, damp motor, rotor sweeping, excessive powe...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a switched reluctance motor detection system and control method, which can solve the problems of local heating and three-phase imbalance of the motor, realize closed-loop control of the internal temperature of the motor, and make the whole system work at the optimum level. Excellent running condition, high reliability, strong economy, easy operation and maintenance, greatly prolonging the life of the motor

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