Control apparatus and control method of switch reluctance motor

Abstract

The invention discloses a control apparatus and a control method of a switch reluctance motor. The control apparatus comprises a control apparatus body, a hardware system, a chopper controller and a logic circuit; and the control apparatus body is provided with a wiring end, a signal transceiving module, a rotary speed reference module, a speed signal detection module, a logic circuit, a speed mode selector, a detector, a switch reluctance motor, a frequency voltage converter, a single-pulse controller, a chopper controller, a power converter, a controller, a DSP chip, an D/A conversion module, a current sampling module, a filtering amplifier, a comparator and a time delay device. The control apparatus is flexible in control, high in controllability, and high in efficiency; by controllingthe on-off time of the magnetic pole coil by the controller, the motor rotary speed can be controlled; and position closed-loop control of the switch reluctance motor is accurate in each phase time, and regular excitation is performed to generate stable and effective rotation.

Description

technical field [0001] The invention relates to the technical field of switched reluctance motor control, in particular to a control device and a control method for a switched reluctance motor. Background technique [0002] At present, switched reluctance motors are widely used in electric vehicles, household appliances, general industries and other fields due to their advantages of simple structure, low price, high reliability, high efficiency and adaptability to harsh environments. [0003] The application of switched reluctance motors in electric vehicles includes the application of car parking. The application method is open-loop control of the motor, that is, the motor runs at a fixed speed, and then drives the mechanical structure to realize the parking of the vehicle. This method is fixed in response time and motor output torque. [0004] The problem existing in the prior art is that when the vehicle is started, due to the limitation of the motor’s response time and ...

AI Technical Summary

Problems solved by technology

[0004] The problem existing in the prior art is that when the vehicle is started, due to the limitation of the motor’s response time and fixed output torque, the car will pause for a short time when starting, resulting in a feeling of frustration in the whole vehicle, which obviously affects the comfort of the car when driving. sex

And because the output torque is fixed, when the load of the motor changes, the motor action is incomplete, which makes it impossible to realize the corresponding unlocking and locking functions

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