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Making a plant stable with a compensator based on given requ
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[QUOTE="shuh, post: 5468120, member: 91831"] Looking at the root locus plot for the plant, it seems like the gain margin is really small to begin with. If I'm going to add a phase lead at high frequency at the cost of gain margin, to me it seems like might as well as use a PID controller to easily satisfy the requirement. So am I right to assume that there truly is no way of satisfying all of the requirements above while having a reasonable gain margin? So I designed a PID controller that looks like the following: [ATTACH=full]187605[/ATTACH] which I think does satisfy the requirements looking at the step response and the bode plot, of course at the cost of nearly no gain margin. Would this be a good solution? [/QUOTE]
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Making a plant stable with a compensator based on given requ
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