Dc machine closed-loop dynamics, Electrical Engineering

Assignment Help:

i) Calculate the eigenvalues of a 100 hp, 1150 rpm dc machine at rated flux with no extra load inertia. Use the "hot" value of the armature resistance. Calculate estimates of the resulting speed overshoot and settling time (within 2%) for a step armature voltage input, beginning at an initial current of 0.

ii) Now assume that a closed-loop current regulator is introduced as shown in Fig. 2.7-3 of the book. What are the new eigenvalues of the motor-plus-regulator system if the current regulator gain Ki is set to 10? Ignore the mechanical damping constant (B=0) in Fig. 2.7-3. Calculate estimates of the resulting overshoot and settling time for a step current input, beginning at an initial current of 0.

iii) Now consider a closed-loop speed control system as shown in Fig. 2.7-5. Assume that the current regulator dynamics are very fast compared to the outer speed loop and the current regulator gain is high enough so that it is effectively "ideal". Calculate the eigenvalue of this closed-loop system for Kp=100, τz=∞. (Assume B=D=0 again.) Calculate the resulting output speed overshoot and approximate settling time of the closed-loop system for a step speed command input.


Related Discussions:- Dc machine closed-loop dynamics

When mt2 and gate is negative, when MT 2 and Gate  is Negative In th...

when MT 2 and Gate  is Negative In this case gate  current  flows  through P 2 N 3 junction. Junction N 1 P 2 forward  biased hence the triac  starts  conduction through  P

Chemistry, Write short note on hardness of water and its units

Write short note on hardness of water and its units

Transfer function, how can i do a question concerning a transfer function

how can i do a question concerning a transfer function

Describe the lastprivate clause, Q. Describe the Lastprivate Clause? Th...

Q. Describe the Lastprivate Clause? The lastprivate clause declares one or more list items to be private to a thread in additin causes corresponding original list item to be up

Calculate the current flowing through the inductor, The circuit is altered ...

The circuit is altered by replacing the capacitor, C1 with an inductor of 150mH and left with the switch in position (a) for a long time. At time t=0, the switch is moved from posi

Light triggering - power semiconductor devices , Light Triggering Whe...

Light Triggering When  light is  thrown  on silicon the hole electron pair get excited an increases hence  the leakage  current of J 2   increases which  will increase I C1 a

Clampers, just to put an assignment Give only short details that are impor...

just to put an assignment Give only short details that are important Specially bised clamper

Current source inverter , Current  Source Inverter (CSI) Current  sour...

Current  Source Inverter (CSI) Current  source  inverter has constant  input  but it  can be  adjusted. In CSI  the amplitude of output  current is  independent of load. The lo

Smart parking system, Design a smart park system using Iot sensors to udate...

Design a smart park system using Iot sensors to udate stautus to a server ?

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