Design on closed-loop control of DC
speed regulation system
Abstract
The system what we have designed is that the magnetic field which can’t revearse,the armature volate is stable without error DC speed regulation system .the armature field circuit is three-phase full wase bridge retifier, the magnetic field circuit is a rectified circuit that isn’t controlled. the stable realization without error ,the sigma andwhich are not over 5% by using PI modulator, to limit impacting current by using cuting off negative feedback while speed over iegalation by using over speed and limit speed.
We designed the closed-loop control of DC speed regulation system in the frequency way and gave the struction drawing of its parameters calcuation,then we made use of the MATLAB/ SIMULINK to simulate the results based on the designing of DC speed regulation system’s theories, We regulated the parametes in the process of simulation,then we got the good results what we wanted.
The practice manifests the method that is the frequency way together with MATLAB/ SIMULINK simulation is practical and useful,because the DC speed regulation system we have designed has the good and dynamic function with the controlable results so as to make the DC speed regulation system brief, more economical, more convenient.
Key words: Closed-loop control of DC speed regulation system ; Cutting off negative feedback; MATLAB/ SIMULINK simulation