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

Bi directional buffer 74ls245 , Bi Directional Buffer 74LS245 This types...

Bi Directional Buffer 74LS245 This types  of bi directional  buffer is required for data  bus as it has  to function as bi directional bus. The logic  diagram  of such  buffer i

Write a note on superconductors, Write a note on superconductors. Super...

Write a note on superconductors. Superconductors- The resistivity of most metals rises with increase in temperature and vice-versa. Some metals and chemical compounds are there

Different types of errors in measurement, Q.   Enumerate different types o...

Q.   Enumerate different types of errors in  measurement. How can these errors be minimized.                Sol. Types of errors: Errors may arise from different sources and

Describe the phasor equations, Q. Describe the following phasor equations r...

Q. Describe the following phasor equations represented in the time domain: (a) ¯ E = K1e-¯ γz (b) ¯ E = K2e ¯ γz where z is the space coordinate, K1 and K2 are constants,

#title thyristor, what is finger voltage in terms of thyristor

what is finger voltage in terms of thyristor

Call instructions, Call Instructions Call instruction are used to call ...

Call Instructions Call instruction are used to call a  subroutine program in assembly language  procedure and functions are called  subroutines. There are two types  of calls i

Traditional Model - Performance Monitoring and Control, Traditional Model -...

Traditional Model - Performance Monitoring and Control The traditional model talks only about the finance and the financial accounting model. The output are published periodic

Biasing, Biasing: Bipolar transistor amplifiers have to be properly bi...

Biasing: Bipolar transistor amplifiers have to be properly biased to operate properly. In circuits made up with individual devices (discrete circuits), biasing networks contai

Calculation of AT&C loss, how to make a matlab program for calculation of A...

how to make a matlab program for calculation of AT&C loss for perticular area

Matlab ? uniform quantization, simulate a uniform quantizer that takes as a...

simulate a uniform quantizer that takes as an input a vector of numbers and returns as an output the quantized vector. 1-Generate a random input vector of 10000 samples randomly in

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