转速电流双闭环直流调速系统.doc

文档介绍：转速、电流双闭环直流调速系统的设计
设计总说明
本设计为转速、电流双闭环直流晶闸管调速系统。该系统中设置了电流检测环节、电流调节器以及转速检测环节、转速调节器,构成了电流环和转速环,前者通过电流反馈作用稳定电流,后者通过转速反馈作用保持转速稳定,最终消除转速偏差,从而使系统达到调节电流和转速的目的。该系统起动时,使转速线性变化,迅速达到给定值;稳态运行时,使转速随转速给定电压的变化而变化,具有优良的调速性能。
关键词:双闭环;晶闸管;转速调节器;电流调节器
The Design of Speed, Current Double-loop DC Converter System
Design Description
The design is speed, current double-loop SCR DC converter system. The system sets up the current detecting aspect, the current regulator ACR and the speed detecting link, speed regulator ASR, composes the current central and the speed central, the former through the feedback of ponents to level off the current, the latter finally eliminates the deviation of speed bias, thus allowing the system to the purpose of regulating the current and speed. When the system starts, the speed outer ring saturates non-functional, the current inner ring plays a major role to regulate the starting current to maintain the maximum so that the speed linear change, to reach a given value; When it operates steadily, the speed negative feedback from the outer ring plays a major role, to let the speed changes with the given speed voltage, at the same time the current inner ring regulates the armature current of motor adjustment to balance the load current.
Key words: Double-loop; thyristor; the speed regulator; the current regulator
目录
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、电流双闭环直流调速系统的组成及原理 2
、电流双闭环直流调速系统的组成 2
、电流双闭环直流调速系统的原理图 3
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-发电机-测速发电机组的飞轮惯量GD2 的测定 11
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-M调速系统主电路设计 12
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可控整流变压器选择及计算 13
晶闸管的选择 13
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转速检测电路 15
电流反馈环节及过流保护环节 15
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电流调节器设计 17
转速调节器设计 18
5. Simulink仿真 20
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双闭环直流调速系统的仿真 21
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系统调试原则 23
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各控制单元的