Method and controls system for automatically adjusting efficiency of DC brushless motor according to loads

Abstract

The invention discloses a method and control system for automatically adjusting efficiency of a DC brushless motor according to loads. The system comprises the motor and a motor built-in control board, wherein the motor built-in control board comprises a VSP reading module, a rotating speed detection module, a current detection module and an entrance angle adjusting module; the VSP reading module is used for reading rotating speed instructions; the rotating speed detection module is used for rotating speed detection; the current detection module is used for detecting and processing operation currents; and the entrance angle adjusting module is used for setting an entrance angle and substituting a set value into a motor system. According to the invention, by use of the method and such a structure, the VSP reading module reads a target rotating speed, the rotating speed detection module confirms an actual rotating speed of the motor, through adjusting the entrance angle, the actual rotating speed of the motor matches the target rotating speed, working currents of the motor is sampled, and an optimal efficiency point of the motor is adopted, such that the motor can be adaptive to different systems, the development time of the motor and the type number of motors required by clients are reduced, the time efficiency of development is greatly improved, and the cost is decreased.

Description

technical field [0001] The invention relates to a motor control method and a control system, in particular to a method and a control system for automatically adjusting the efficiency of a DC brushless motor according to load. Background technique [0002] The motors produced by motor manufacturers are used in various fields, and different fields have different loads and speeds. In order to make the motor have certain versatility and adapt to different loads, the rated power of the motor is usually very large. [0003] Traditional brushless DC motors usually require a host computer to control; or the control mode and control angle of the motor are fixed, so that there will be differences in performance under different loads and working conditions. However, the differential design of the motor and its control usually results in poor generalization of the motor. [0004] Therefore, in order to reduce the number of motor products required by different customer groups and the d...

AI Technical Summary

Problems solved by technology

However, differential design of motors and their controls often results in poor generalization of motors

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