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

Determine the equivalent capacitance, Q. Determine the equivalent capacitan...

Q. Determine the equivalent capacitance at terminals A-B for the circuit configurations shown in Figure.

For parity flag , For Parity Flag  CPRE (Call  on parity even) and C...

For Parity Flag  CPRE (Call  on parity even) and CPO (Call or parity  Odd) Instruction CPE calls the subroutine  from the  specified  memory  location if parity  flag is

Common-base configuration, Common-base configuration:  The common-bas...

Common-base configuration:  The common-base that is abbreviated as CB transistor configuration, which is as well termed as the 'grounded base' configuration, is displayed in

Transient behavior of a control system, Q. Transient behavior of a control ...

Q. Transient behavior of a control system? The transient portion of the time response of a stable control system is that part which goes to zero as time increases and becomes s

Impact of abnormal solar winds on the earth, (a) Provide examples of intent...

(a) Provide examples of intentional electromagnetic sources and examples of unintentional sources. (b) Describe the process of the formation of lightning. (c) Reduce each of

Explain daa instruction, Explain DAA instruction. DAA: The DAA instruct...

Explain DAA instruction. DAA: The DAA instruction follows the instruction ADC or ADD to adjust the result in a BCD result. The DAA instruction performs only with the AL registe

Find the current flow through resistor using thevenin''s, Find the current ...

Find the current flow through resistor 12 Ω using Thevenin's Theorem.

Sinusoidal, Give the examples of sinusoidal with two equations?

Give the examples of sinusoidal with two equations?

Solve for the time-domain forced response of the resultant, Consider an RLC...

Consider an RLC series circuit excited by v(t) = V m cos ωt in the time domain. By using superposition, solve for the time-domain forced response of the resultant current through

Sketch voltage and the energy stored in the capacitor, Q. Considering the c...

Q. Considering the circuit shown in Figure, sketch v(t) and the energy stored in the capacitor as a function of time.

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