Double three-phase motor controller svpwm method and computer storage medium

Abstract

The invention provides a dual-three-phase motor controller SVPWM method and a computer storage medium, which belong to the technical field of motor control. The method includes: obtaining 6-phase current values ​​corresponding to 6-phase windings of a dual-three-phase motor; generating a voltage command through the 6-phase current value through a current loop, transforming the voltage command into a fundamental wave subspace and a harmonic subspace to obtain an input voltage vector ; Utilize the decomposition formula to decompose the input voltage vector into the ABC three-phase windings and UVW three-phase windings of the dual three-phase motor, respectively obtain the first decomposed voltage vector and the second decomposed voltage vector; use the first decomposed voltage vector and the second decomposed voltage The duty cycle of each phase voltage of the dual three-phase motor is obtained through vector calculation; the dual three-phase motor is controlled according to the duty cycle. The method can efficiently and concisely calculate the duty cycle of each phase voltage of the dual-three-phase motor.

Description

technical field [0001] The invention relates to a dual-three-phase motor controller SVPWM method and a computer storage medium, and belongs to the technical field of motor control. Background technique [0002] A double three-phase motor is a motor with two sets of three-phase windings (ABC three-phase winding and UVW three-phase winding). Generally, the two sets of windings have a spatial difference of 30 degrees (electrical angle). Compared with traditional motors, Dual three-phase motors have the advantages of small torque ripple and high reliability, so they can be used in ship drives, electric vehicles and other fields. Dual three-phase motors mainly include dual three-phase permanent magnet synchronous motors, dual three-phase asynchronous motors, etc. Both of these two types of dual three-phase motors require matching dual three-phase motor controllers for control. The dual three-phase motor controller usually adopts the Space Vector Pulse Width Modulation method (Sp...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of dual three-phase motor controller SVPWM method, in order to solve the problem that calculation process is more complicated when utilizing existing SVPWM method to calculate the duty cycle of each phase voltage of dual three-phase motor; The present invention also provides A computer storage medium used to solve the problem that the calculation process is relatively complicated when using the existing SVPWM method to calculate the duty ratio of each phase voltage of a dual-three-phase motor

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