Method for controlling advance angle of double salient-pole electric machine and circuit thereof

Abstract

The invention discloses the bisalient-pole electric machine advance angle controlling method and the circuit, the connection table of the time frequency, the rotating speed and the back moving pulse is deposited in the RAM zone of the digital signal processor, then the corresponding data is read during the controlling process, the advance angle can be controlled; the circuit includes the tally, the lock phase loop and the digital signal processor, the three phase positional signal of the electric machine are imported into the digital signal processor, another locking phase loop separating thefrequency can be choosed to choose the different time frequency according to the practice needing, the needing of the controlled precision can be reached. The method of the invention is flexible to improve the bisalient- pole electric machine contributing on the each speed section. It can be applied in the constant speed system, the rising rate of the phase circuit can be improved highly, the speed of the electric machine with the same loading is higher compared to the existing controlling method, the application of the timing system can improve the loading ability of the electric machine andbetter the output power of the electric machine.

Description

1. Technical field [0001] The invention relates to a motor control method, in particular to a method for controlling a doubly salient motor, and at the same time relates to a special circuit for the method for controlling a doubly salient motor. 2. Background technology [0002] With the development of power electronics technology and control technology, motors with new structures continue to emerge. The doubly salient motor was first proposed by Professor Lipo in the United States in the 1990s, and it is a permanent magnet structure. With the in-depth research on the magnetic circuit structure of motors by scholars from all over the world, various forms of doubly salient pole motors such as electric excitation motors, hybrid excitation motors, and double stator structures have been derived. But so far, there is still little research on the control technology of this new type of doubly salient motor. At present, most of them still use three-phase bridge-type converters to d...

AI Technical Summary

Problems solved by technology

In order to improve the output of doubly salient motors at medium and high speeds, some scholars have proposed advance angle control, but this is only a conceptual proposal, without real technical implementation and application.

Images