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By adding poles and zeros to the transfer function of a system we can affect its root locus and also the stability. If we add a valid zero to the T.F. it will shift the root locus towards left side of the s-plane and thus the stability increases. And if we add a valid pole reverse process of that of adding zero occurs...

Ashish Sharma

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Q: Adding poles and zeros to system affect stability?
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What is the meaning of poles and zeros?

poles are the plot of the transfer function of a system on the left side of the origin, in s-plane. zeroes are the right side plot. poles and zeroes specifies the absolute stability of the system.. they also gives the observability and controllability of the system..


What is nyquist set?

The Nyquist stability criterion, named after Harry Nyquist, provides a simple test for stability of a closed-loop control system by examining the open-loop system's Nyquist plot. Under many circumstances, stability of the closed-loop control system may be determined directly by computing the poles of the closed-loop transfer function. In contrast, the Nyquist stability criterion allows stability to be determined without computing the closed-loop poles


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The root locus represents the movement of the poles of a system as a parameter is varied. It helps in analyzing the stability and dynamic response of a system. By plotting the locations of the poles in the complex plane, engineers can understand the behavior of the system and design appropriate control strategies.


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Arbitrary pole placement refers to the process of selecting the locations of the poles of a system to achieve desired dynamic behavior. By choosing the pole locations, engineers can design the system to have specific characteristics, such as stability, performance, and response time. The poles can be placed using various control techniques to meet the desired requirements.


Can we know the stability from Bode plot?

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You can determine quickly the effect of adding poles and zeros by?

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What are poles in electrical control system?

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What is meant by poles?

River rafts are often conveyed by poling. See the definition of 'poling' at the Related Link, listed below:


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