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Optimized PIDD2 controller for AVR systems regarding robustness by Slavko Veinović; Djordje Stojić; Luka Ivanović is a Engineering article available to read on EtoBox.

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The novel method for tuning proportional-integral-derivative controller with second order derivative term (PIDD2) for the automatic voltage regulator (AVR) of synchronous generator is presented. The design method minimizes load disturbance response regarding constraints on sensitivity functions: maximum sensitivity Ms , maximum complementary sensitivity Mp and measurement noise sensitivity Mn . Simple solution is obtained by shifting PIDD2 controller in a new parameter space and by employing an iterative procedure. In each iteration the five controller parameters are obtained by solving the constrained optimization problem concerning sensitivities Ms and Mn for the fixed value of controller zeros damping factor ξ. The robustness index Mp is calculated subsequently. In that manner, maximum of complementary sensitivity Mp is met by means of auxiliary parameter ξ. The performance improvements are achieved in comparison with traditional PID controller, while robustness is retained. Further, the comparison is made with an optimization method using amplitude optimum principle that also minimizes load disturbance response with different optimality criterion. Experiments are carried out on

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Author

Slavko Veinović; Djordje Stojić; Luka Ivanović

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)