Control method of permanent magnet brushless DC motor speed control system based on time-varying interference suppression

Abstract

The present invention claims a method for controlling the speed regulation system of the permanent magnet brushless DC motor based on time-varying interference suppression. model; secondly, a disturbance observer is designed using the velocity signal in the model to estimate the time-varying disturbance in the system; finally, the final time-varying disturbance suppression controller is designed based on the disturbance estimation. Compared with the traditional cascade structure control method, this method is not only simple in controller design, but also easy to adjust parameters, and has strong interference suppression ability, which can meet the application requirements of permanent magnet brushless DC motor speed control system in high performance field .

Description

technical field [0001] The invention belongs to a control method of a speed regulation system of a permanent magnet brushless direct current motor, in particular to a control method of a permanent magnet brushless direct current motor speed regulation system based on time-varying interference suppression. Background technique [0002] The permanent magnet brushless DC motor is a new mechatronic motor that has emerged with the development of semiconductor electronics technology. It is the product of the combination of modern electronic technology (including power electronics, microelectronics technology), control theory and motor technology. It is not limited to AC. The DC field also involves the fields of electric and power generation energy conversion and signal sensing, because of its simple structure, high operating efficiency, no excitation loss, good speed regulation performance, light weight, small inertia, precise control, reliable operation and maintenance With a ser...

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