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

Role of bureau of energy efficiency, Role of Bureau of Energy Efficiency ...

Role of Bureau of Energy Efficiency The role of the Bureau of Energy Efficiency is to: Ready standards and labels of appliances and equipment; Develop a list

Spread time - power semiconductor devices , Spread Time (t s ) During  ...

Spread Time (t s ) During  spread time anode  voltage  falls from 10% I a  to the  on state  voltage  drop  and anode  current  rises  from 90% I a   to final  value  of anode

Calculate the output torque, The power transferred across the air gap of a ...

The power transferred across the air gap of a two pole inductionmotor is 24 kW. If the electromag netic power developed is 22 kW, find the slip. Calculate the output torque if the

Determine the value of capacitance to give resonance, Determine the value o...

Determine the value of capacitance to give resonance: A circuit shown in Figure having a resistance of 5 Ω, an inductance of 0.4 H and a variable capacitance in series is conn

Mention the three transistor configurations, Q. Mention The Three Transisto...

Q. Mention The Three Transistor Configurations? The three transistor configurations are 1)Common emitter configuration 2)Common base configuration 3)Common collector c

What is a modem, Q. What is a Modem? Modems are generally used to inter...

Q. What is a Modem? Modems are generally used to interface digital circuits to transmit information on analogue channels such as telephone systems. Modem (from modulator-demodu

FET operation, ON output plot of a JFET n-channel transistor if ID is close...

ON output plot of a JFET n-channel transistor if ID is close to IDSS does the value of VGS close to VP?

Quartus, I have a project due tomorrow, i have exhuasted all my resources, ...

I have a project due tomorrow, i have exhuasted all my resources, and cannot understand how to do the project, it is VHDL coding in Quartus program, i can send the assignment if yo

What do you understand by progressive control, Q. What do you understand by...

Q. What do you understand by progressive control? Progressive Control: Step by step system is an example of progressive control. The connection is set up in stages, in response

Explain magnetic property of ferromagnetic materials, The critical temperat...

The critical temperature above which the ferromagnetic materials lose their magnetic property is known as (A) Hysteresis.                                   (B) Curie point.

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