REVIEW OF A HIGH PERFORMANCE CONTROL OF AC SIGNALS BASED ON A PROPORTIONAL PLUS RESONANT COMPENSATOR
Keywords:
AC system, current control system, proportional + integral (PI) controller, proportional, plus resonant compensatorAbstract
This article reviews a high performance control of alternative current (AC) signals based on a controllercalled the Proportional plus Resonant (P+Resonant) compensator. Recently, this type of compensatorhas been considered as a high performance controller and it can be applied to the AC control system,particularly in the field of power electronics. Applications of P+Resonant Compensator have beenproposed including the design consideration. When compared with the traditional controllers such asProportional + Integral (PI) controller, an accurate control of a high frequency AC signal can be obtainedwith this type of compensator. The characteristics and merits of the P+Resonant controller are analyzedand illustrated including the controller design in the discrete domain. Another major advantage is theability to eliminate external disturbance having the same frequency as the tuned resonance frequency.
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