1 model motor1 "An DC Motor Model"
2 type Voltage=Real(unit="V");
3 type Current=Real(unit="A");
4 type Resistance=Real(unit="Ohm");
5 type Speed=Real(unit="r/min");
6 type Torque=Real(unit="N.m");
7 type Inertia=Real(unit="kg.m^2");
8
9 Torque Tm"Torque of the Motor";
10 Speed n"Speed of the Motor";
11 Current i"Armature Current";
12 Voltage u"Voltage Source";
13 Resistance R_ad"External Resistance";
14 parameter Real J = 1"Total Inertia";
15 parameter Real R = 0.6"Armature Resistance";
16 parameter Real Kt = 1.8"Torque Constant";
17 parameter Real Ke = 0.189"EMF Constant";
18 parameter Real Tl = 29.2"Load Torque";
19
20
21 equation
22
23 Tm-Tl = J * der(n) * 6.28 / 60;
24 Tm= Kt * i;
25 u= i * (R+R_ad) + Ke * n;
26
27 if time <= 0.1 then
28 u = 0;
29 else
30 u = 240;
31 end if;
32
33 if n<=634.9 then
34 R_ad=4.33;
35 elseif n<=952.4 then
36 R_ad=1.87;
37 elseif n<=1111.1 then
38 R_ad=0.63;
39 else
40 R_ad=0;
41 end if;
42
43 end motor1;
