Compensator design for non-minimum phase systems

AI Thread Summary
For designing a compensator for open loop non-minimum phase systems, several approaches can be considered, including the use of complementary root locus techniques. When the desired closed loop poles are specified, employing negative root locus is a common practice, particularly when a negative gain is involved. This method helps in achieving stability and desired transient response despite the non-minimum phase characteristics. Additionally, other design methods like pole placement and frequency domain techniques may also be relevant. Effective compensator design requires careful consideration of the system's dynamics and the desired performance criteria.
maverick280857
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Hi

Given an open loop non-minimum phase transfer function, what in general are the approaches preferable to design a compensator for it? Suppose one is given the location of the desired closed loop poles, is it a standard practice to use complementary root locus (or negative root locus) for design, assuming a negative value of the gain?

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