Universal motor controller based on parameter self-learning

Abstract

The invention discloses a universal motor controller based on parameter self-learning. The universal motor controller comprises a master control module, a power supply module, a motor control module, a motor parameter identification module and a power drive module connected with the motor parameter identification module and the motor control module, wherein the power supply module, the motor control module and the motor parameter identification module are in signal connection with the master control module. The universal induction motor controller can conduct automatic identification on motor parameters required for rotor field directional vector control, wherein the motor parameters include stator resistance Rs, magnetic inductance Lm, the orthogonal encoder line number Qn and rotor excitation time constant Tr; then, the motor parameters are automatically configured to a motor control module of an induction motor; in this way, the shortcomings that in the prior art, motor parameter identification operation is complex, technical requirements are high, and the application range of the controller is small are overcome, and the advantage that the controller is capable of automatically identifying the motor parameters and high in universality is realized.

Description

technical field [0001] The invention relates to a general motor controller, in particular to a general motor controller based on parameter self-learning. technical background [0002] The vector control based on the rotor field orientation is the most common method in the control of asynchronous induction motors. The configuration of this control system generally needs to know several motor parameters, including the stator resistance R s , Exciting inductance L m , Quadrature encoder line number Q n , rotor excitation time constant T r etc. The correct configuration of parameters is the premise and basis for realizing rotor field orientation. If the parameter value does not match the actual value, it will directly affect the accuracy of the magnetic field orientation, which may cause the loss of the original technical advantages of the vector control, resulting in the decline of the steady state and dynamic performance of the induction motor motion control system, and eve...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the prior art, the present invention adopts the induction motor controller to self-identify the induction motor parameters, solves the problems of the prior art that the work is cumbersome, the technical requirements for the staff are high, and the use range of the controller is narrow. Universal Induction Motor Controller with Simple Operation and Wide Applicability

Images