范文编号:JD637 附原理图,范文字数:18985,页数:49 转速闭环(V-M)直流调速系统设计 本设计是关于电枢调压、磁场不可逆直流调速系统。电枢回路采用晶闸管三相全控桥式整流调压电路,磁场回路采用桥式不可控整流电路,速度调节器采用带微分负反馈的比例-积分(PI)结构以实现转速稳态无静差,电流超调量 5%,转速超调量5%等指标,采用电流截止负反馈以限制动态过程的冲击电流。 关键词: 闭环直流调速系统;截止负反馈;MATLAB/SIMULINK仿真 Design on closed-loop control of DC 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. Key words: Closed-loop control of DC speed regulation system ; Cutting off negative feedback; MATLAB/ SIMULINK simulation
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