Evaluate the transfer function, Electrical Engineering

Assignment Help:

Since dc motors of various types are used extensively in control systems, it is essential for analytical purposes that we establish a mathematical model for the dc motor. Let us consider the case of a separately excited dc motor with constant field excitation. The schematic representation of the model of a dc motor is shown in Figure. We will investigate how the speed of the motor responds to changes in the voltage applied to the armature terminals. The linear analysis involves electrical transients in the armature circuit and the dynamics of the mechanical load driven by the motor. At a constant motor field current If, the electromagnetic torque and the generated emf are given by

Te = Kmia

ea = Kmωm

where Km = kIf is a constant, which is also the ratio eam. In terms of the magnetization curve, ea is the generated emf corresponding to the field current If at the speed ωm. Let us now try to find the transfer function that relates m(s) to Vt(s).

1543_Evaluate the transfer function.png


Related Discussions:- Evaluate the transfer function

Circuit theory, contribution of circuit theory on the health and quality of...

contribution of circuit theory on the health and quality of life of the citizen

Increment contents of register - inr instruction , Increment contents of Re...

Increment contents of Register Content  of register  are   incremented  by one and the  results  is stored  in the same  register R. It is an exceptional  case in which  accumu

Control systems, Hi, What is the time response for a closed loop transfer f...

Hi, What is the time response for a closed loop transfer function:H(s) = 10/(s^2 +s +1) to delta function input?

Factors affecting high commercial losses, Factors Affecting High Commercial...

Factors Affecting High Commercial Losses Commercial losses in our country occur mainly because of the following reasons: Incorrect assessment of the energy consum

Guidelines from electricity regulatory commission, Guidelines from Electric...

Guidelines from Electricity Regulatory Commission The electricity companies have successfully adopted the guidelines issued through ERCs Utilities usually set their yearly KP

Explain temperature dependency in conductors, Explain temperature dependenc...

Explain temperature dependence of electrical conductivity and resistivity in conductors. When the temperature is increased, there is a greater thermal motion in atoms that redu

Minimum value of rl that can be used, Verify the minimum & maximum load cur...

Verify the minimum & maximum load current for which the zener diode will keep regulation. Find the minimum value of RL that can be used. The zener diode has V Z = 12V, I ZK =

Microprocessor, I would like to know if you can help me with the attached m...

I would like to know if you can help me with the attached microprocessor assignments my email address is . also let me how much in cost in $US

Third generation 1964 -1982 - history of computer , Third Generation ( 196...

Third Generation ( 1964- 1982 ) Invention of  technology  of integrated circuits created computers  of third  generation. In  several  logical  gates  are fabricated on a singl

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd