The second week of Electromechanical Drive control operation

History of motor Development information reading

Motor in machinery. Metallurgical, textile, coal, petroleum, chemical, transportation and household appliances and other fields are the main power equipment of various production machinery. The control motor is also an important and indispensable component in the automatic control system of national defense and civil. Motor is an irreplaceable important role in the national economy.

I searched the internet for the growth chart of the national total installed capacity, the total installed capacity of the plant was only 624 million kw in 2006, and by 2014 the total number of power generation capacity of the country was 1.36 billion kw, increasing by more than one times. The country's demand for energy is also growing steadily, while thermal power will gradually cut its share, and more efficient motors and motors for wind and hydro-electric energy need further development.

The development of the motor is divided into three periods: DC motor, AC motor, motor theory, design and process improvement period;

and the DC motor has experienced from permanent magnet to excitation, from his excitation to self-excited, from the T-shaped winding to the ring winding, from the whole core to the laminated core and so many technological and theoretical changes, but the overall DC motor, or in the early stages of motor development.

The AC motor is produced to improve the problem that DC cannot produce a larger voltage. Also experienced from induction motor to three-phase induction motor changes, and later, a variety of new structures and theories have gradually come into being, motor theory design, manufacturing process gradually began to improve.

System Dynamics: Modeling and simulation of electromechanical systems reading

 

Model Motor1

Real Tm;

Real N;

Real i;

Real u;

Parameter Real J = 0.01;

Parameter Real R = 0;

Parameter Real Kt = 1.1;

Parameter Real Ke = 0.9;

Parameter Real Tl = 2;

Equation

If time <= 0.1 Then

U = 50;

ElseIf Time <=0.15 Then

u = 100;

Else

u=150;

End If;

TM-TL = J * der (n);

tm= Kt * i;

u= i * R + Ke * N;

End Motor1;

Add a layer of logic to the IF condition, and then change the resistance several times (as if it had no effect, and finally changed to 0)

Simulation results

The second week of Electromechanical Drive control operation