Illustrate output-rate control, Electrical Engineering

Assignment Help:

Q. Illustrate Output-rate control?

A system is said to have output-rate damping when the generation of the output quantity in some way ismade to depend upon the rate atwhich the controlled variable is varying.Output-rate control often involves the creation of an auxiliary loop, making the system multiloop. For the system of Figure, output-rate damping can be obtained by means of a tachometer generator, driven from the servomotor shaft. The complete block diagram of the servomechanism with output-rate damping is depicted in Figure, where Ko is the output-rate gain factor (V·s/rad) and the output-rate signal is given by Ko(dc/dt). By applying the feedback relationship of Equation to the minor (inner) loop, one gets

445_Illustrate Output-rate control.png

where Qo = KoKaKm is known as the loop output-rate gain factor. Figure may then be simplified. The closed-loop transfer function for the complete system is then given by

1215_Illustrate Output-rate control1.png

725_Illustrate Output-rate control2.png

243_Illustrate Output-rate control3.png

where K = KpKaKm is known as the loop proportional gain factor, as stated earlier.

The manner in which output-rate damping effects in controlling the transient response are most easily demonstrated is by assuming a step input applied to the system. The output-rate signal appears in opposition to the proportional signal, thereby removing the tendency for an excessively oscillatory response.With error-rate damping and output-rate damping, the damping ratio can be seen to be

412_Illustrate Output-rate control4.png

where Q = Qe or Qo, in which a term is added to the numerator, while the natural frequency is unchanged (as given by ωn = √K/J ). The damping ratio can then be adjusted independently through Qe or Qo, while K can be used to meet accuracy requirements.


Related Discussions:- Illustrate output-rate control

Node-voltage method to find the current, Q. Use the node-voltage method to ...

Q. Use the node-voltage method to find the current I through the 5- resistor of the circuit of Figure.

Mode 1 - boost converter, Mode 1 In this mode  transistor Q gets turne...

Mode 1 In this mode  transistor Q gets turned on by the positive output  of the PWM. After  that current  flows  through  inductor L  transistor Q then back  to supply  in thi

Electric roadway system specification, The electric roadway system shall ut...

The electric roadway system shall utilize solar energy as the main power source. The electric roadway system shall negotiate with the power utility on backup power supply.

Conducting material, #question.classification of conducting material.

#question.classification of conducting material.

Describe how a wheatstone bridge works, Explain all of your steps and follo...

Explain all of your steps and follow a logical train of thought. Clearly describe all design rationale. 1)  Design a device to deliver a sinusoidal 500kHz pulse through a piezoe

Strain gauge bridge circuit, Explain kinds of strain gauge bridge circuits ...

Explain kinds of strain gauge bridge circuits and resistance strain gauges.

Aggregate technical and commercial loss, Aggregate Technical and Commercial...

Aggregate Technical and Commercial Loss It is unfortunate in that addition to T&D losses, there is also a loss in revenue because of non-realisation of billed demand which lea

Find the rotor current, A 2200-V, 1000-hp, three-phase, 60-Hz, 16-pole, wye...

A 2200-V, 1000-hp, three-phase, 60-Hz, 16-pole, wye-connected, wound-rotor induction motor is connected to a 2200-V, three-phase, 60-Hz bus that is supplied by synchronous generato

Determine the laplace transform of the waveform, Q. Determine the Laplace t...

Q. Determine the Laplace transform of the waveform shown in Figure.

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