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Lesson 10. System design. Armature circuit. Field circuit. Example : An Armature control DC motor. constant. +. -. Sensor. Design controller. Characteristic function :. Case I : Proportional control. Open loop transfer function :. Type I system. G.M. P.M. g1=zpk([],[0 –1 –5],[10])
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Lesson 10 System design Automatic control by meiling chen
Armature circuit Field circuit Example : An Armature control DC motor constant Automatic control by meiling chen
+ - Sensor Design controller Automatic control by meiling chen
Characteristic function : Case I : Proportional control Automatic control by meiling chen
Open loop transfer function : Automatic control by meiling chen
Type I system Automatic control by meiling chen
G.M. P.M. Automatic control by meiling chen
g1=zpk([],[0 –1 –5],[10]) margin(g1) Automatic control by meiling chen
Case II : Proportional Integral control + - Sensor a zero Open loop transfer function : a pole Automatic control by meiling chen
The system order Type II system Automatic control by meiling chen
g2 (PI controller) is unstable g1 (P controller) is stable Automatic control by meiling chen
Case III : Proportional derivative control + - Sensor Sensor a zero Open loop transfer function : Automatic control by meiling chen
Type I system Automatic control by meiling chen
Case IV : Proportional Integral derivative control + - Open loop transfer function : Automatic control by meiling chen
Open loop transfer function : Type II system Automatic control by meiling chen
Case V : phase lead control Case VI : phase lag control Automatic control by meiling chen
+ - Phase lead: Phase lag: Automatic control by meiling chen
Green phase lead G.M. P.M. Automatic control by meiling chen
Phase lead Automatic control by meiling chen
Green phase lag G.M. P.M. Automatic control by meiling chen
Phase lag Automatic control by meiling chen