COMPENSATOR DESIGN USING BODE PLOT PPT

See our Privacy Policy and User Agreement for details. This leads to faster time response. SlideShare Explore Search You. The compensator in w-plane is Design steps are as follows. The magnitude curve can be shaped to go through 0dB at the desired phase margin to obtain the desired transient response. About project SlidePlayer Terms of Service.

At this point, the frequency is Are you sure you want to Yes No. Full Name Comment goes here. In other words, phase-lag control utilizes attenuation of controller at high frequencies. We think you have liked this presentation. Bode Diagram Figure 1:

Registration Forgot your password? Full Name Comment goes here. BW and rise time tr are inversely proportional. Visibility Others can see my Clipboard.

Lecture 19 – Compensator Design Using Bode Plot, Control Systems

Bode PlotA Bode diagram consists of two graphs: If you continue browsing the site, you agree to the use of cookies on this website.

Determine forward path gain K so as to satisfy the requirement of steady state performance. Auth with social network: Effect of adding a pole or a zero to a transfer function 1 1 Figure 9: This leads to faster time compensatod.

The magnitude curve can be shaped to go through 0dB at the desired phase margin to obtain the desired transient response. Examples Step Response 1 0. In this lecture we would revisit the continuous time design techniques using frequency domain since these can be directly applied to design for digital control system by transferring the designn transfer function in z -plane to w-plane.

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Both should be given in order to determine the relative stability. The lag compensator, while not changing the low-frequency gain, does reduce the high frequency gain. See our User Agreement and Privacy Policy. This gives Or, Thus the controller in w-plane is The Bode plot of the compensated system is usinb in Figure 4. SlideShare Explore Search You. Published on Apr 22, What do you expect about the value of the damping ratio and phase margin of the lpt

Lecture 9: Compensator Design in Frequency Domain.

A typical lead compensator has the following transfer function. Determine gain K to satisfy the requirement on given static error constant.

At gain crossover frequency, the magnitude of open loop gain is unity, i. The compensator in w-plane is Design steps are as follows. The inverse is given by.

EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. If we look at the frequency response of comprnsator simple PD controller, it is evident that the magnitude of the compensator continuously grows with the increase in frequency. If you wish to download it, please recommend it to your friends in any social system.

Lecture 9: Compensator Design in Frequency Domain. – ppt download

We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. The frequency response of a typical lead compensator is shown in Figure 1 where the magnitude varies from 20 log 10 K to 20 log 10 and maximum phase is always less than 90 o around 60 o in general. Construction of Bode plotAny transfer function is composed of 4 classes of terms 1.

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The compensator in w-plane is. Minimum and nonminimum-phase systemMinimum-phase system Transfer functions having neither poles or zeros in the right-half s plane are minimum-phase transfer functions.

The log-magnitude curve can beapproximated by two eesign as given below: See our Privacy Policy and User Agreement for details.

Find an expression for in terms of the component symbols. Xesign by Cornelia Parker Modified over 3 years ago. Now customize the name of a clipboard to store your clips.

To use this website, you must agree to our Privacy Policyincluding cookie policy. Thus the PM of the uncompensated system with K is 18 o. Download ppt “Lecture 9: Now the phase margin is At this point, the frequency is Are you sure you want to Yes No. The response is too oscillatory! You can change your ad preferences anytime.

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