Block diagram of digital control system, Electrical Engineering

Assignment Help:

The block diagram of Figure is a functional representation of a type of digital control system, in which G and H serve the same function as in any feedback system. Note that the error signal is sampled and a digital processor is used. The controller in this system is the digital processor whose output, reconverted to an analog signal, becomes the excitation for the block G.

2391_Block diagram of digital control system.png

As usual, G is the subsystem that provides the output to be controlled. A central computer which controls several functions could be used as a digital processor; or a microprocessor (special- purpose computer) designed for the particular control function may also be used as a digital processor. Large, high-speed computers with their speed, memory, and computational ability, as well as programmability, are utilized for central control in large automated manufacturing facilities. The control process may be summarized as follows:

1. The computer is programmed to indicate the sequence of operations required. Data are fed continuously from various monitoring stations on the progress of the process.

2. By comparing the actual and desired performance, the computer generates a new set of instructions to correct for the deviations.

3. The new set of instructions are usually converted to an analog signal, which in turn forms the excitation applied to the machines that actually do the manufacturing.


Related Discussions:- Block diagram of digital control system

Give the properties and application of glass, Give the properties and appli...

Give the properties and application of glass. Glass - It is an inorganic material made by the fusion of various metallic oxides. The properties of glass are as - Glass is

Potentiometers , Which potentiometer do I need to control; 6v 2amps dc?

Which potentiometer do I need to control; 6v 2amps dc?

If a feeder circuit-breaker trips what action is required, Q. If a feeder c...

Q. If a feeder circuit-breaker trips, what action is needed? Ans: First isolate the faulty feeder check the faulty area on which fault the breaker was tripped (open circuit,

Show television waveform, Q. Show television waveform? The television w...

Q. Show television waveform? The television waveform representing one scan is illustrated in Figure. A blanking pulse with a duration of 0.18 of the horizontal - sweep period T

Combinational-sequential, Design combinational-sequential electronic logic ...

Design combinational-sequential electronic logic gate circuit for a car wash....

Multi-link connection in a network of register, Q. Multi-link connection in...

Q. Multi-link connection in a network of register? For a multi-link connection in a network of register- controlled exchanges, a register in originating exchange receives addre

Wye -delta conversion, how to write theory background on practical about t...

how to write theory background on practical about this topic.

Determine resistance in ideal inverting summing amplifier, Q. In the ideal ...

Q. In the ideal inverting summing amplifier circuit with two inputs, for R f = 10 k, find R 1 and R 2 so that v o = -10v i1 -5 vi2 .

Calculate the energy consumed, A typical 12-V automobile battery, storing a...

A typical 12-V automobile battery, storing about 5 megajoules (MJ) of energy, is connected to a 4-A headlight system. (a) Find the power delivered to the headlight system. (b

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