Transient behavior of a control system, Electrical Engineering

Assignment Help:

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 sufficiently large. The transient behavior of a control system is usually characterized by the use of a unit-step input. Typical performance criteria that are used to characterize the transient response to a unit-step input include overshoot, delay time, rise time, and settling time. Figure illustrates a typical unit-step response of a linear control system.

423_Transient behavior of a control system.png

The following four quantities give a direct measure of the transient characteristics of the step response:

• Maximum (or peak) overshoot A is the largest deviation of the output over the step input during the transient state. It is used as a measure of the relative stability of the system. The percentage maximum overshoot is given by the ratio of maximum overshoot to final value, expressed in percent.

• Delay time td is defined as the time required for the step response to reach 90% of its final value.

• Rise time tr is defined as the time needed for the step response to rise from 10% to 90% of its final value.

• Settling time ts is the time required for the step response to decrease and stay within a specified percentage (usually 5%) of its final value.

While these quantities are relatively easy to measure once a step response is plotted, they cannot easily be determined analytically, except for simple cases.


Related Discussions:- Transient behavior of a control system

Ic packaging, which type of ic package is more advantageous,suitable and ve...

which type of ic package is more advantageous,suitable and versatile

Tri state devices, Tri State Devices Tri  State  devices have three  st...

Tri State Devices Tri  State  devices have three  states logic 1  logic  0 and high  impedance. A tri state device ( Buffer/ Inverter) has three  lines output  enable as shown

Calculate total internal resistance, One battery having of four cells, conn...

One battery having of four cells, connected in series. Emf of each cell is 1.45V and internal resistance of 0.04Ω. if a load resistance of 5Ω is connected to the battery, draw the

Estimate the maximum number of conversions, Q. The speed of an 8-bit A/D co...

Q. The speed of an 8-bit A/D converter is limited by the counter, which has a maximum speed of 4 × 10 7 counts per second. Estimate the maximum number of A/D conversions per secon

What is inductor, What is Inductor Inductor, also known as a choke, is ...

What is Inductor Inductor, also known as a choke, is another passive type electrical component designed to take benefit of this relationship by forming a much stronger magnetic

Decoder - introduction to microprocessors , Decoder A decoder is  logic...

Decoder A decoder is  logic  circuit  that energizes a particular  output line for each  combination of input  signal. Fig   shown  the block  diagram  logic diagram  and fu

Depletion type mosfet, Depletion type MOSFET The channel is of silico...

Depletion type MOSFET The channel is of silicon. It can be two type of channel that is an n-type or p-type channel; it is still mostly silicon. After that, we take note that

Crm triangle, CRM Triangle The following diagram which is called as CR...

CRM Triangle The following diagram which is called as CRM Triangle. Strategy refers to the whole stand taken through the company. It could selected a defensive posture in t

Describe the methods of improving commutation., There are two practical way...

There are two practical ways of improving commutation i.e. of making current reversal in the short - circuited coil as sparkless as possible. These methods are known as (i) resista

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