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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
Astt. Professor
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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
You can determine quickly the effect of adding poles and zeros by?
Root locus
Can we know the stability from Bode plot?
It has been awhile for me, but if all of the poles are to the left of the vertical axis, then it will be stable. Any poles on the vertical, or to the right, and it will be unstable.
What is timber defects like shake checking wane and split?
Checking is a natural occurrence in lumber and poles that happens when the sapwood of a tree dries around the heartwood. Usually, it does not have an affect in the structural value.
How many poles in a 1200 rpm ac motor?
The number of poles in a 1200 RPM AC motor can be determined using the formula: RPM = (120 × Frequency) / Number of Poles. For a standard frequency of 60 Hz, the equation rearranges to Number of Poles = (120 × 60) / 1200, which results in 6 poles. Therefore, a 1200 RPM AC motor typically has 6 poles.
