Analysis and synthesis of feedback compensated third-order control systems via the coefficient plane

Towill, Denis Royston

doi:10.1049/ree.1966.0064

Cited by 4 publications

(1 citation statement)

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“…Time domain specifications such as percent overshoot, rise time, and settling time are related to the design factor by target function matching regardless of the pole-zero cancellation [16]. Overshoot and the Routh-Hurwitz stability criterion are formulated by the coefficient analysis with respect to the normalized third-order closed-loop system [20]. The other time-related specifications are addressed by the timeregulation property of the target function [21].…”

Section: Introductionmentioning

confidence: 99%

A Tuning Algorithm for LQ-PID Controllers using the Combined Time - and Frequency-Domain Control Method

Kim

Lee

2015

Journal of Electrical Engineering and Technology

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-This paper proposes a new method for tuning a linear quadratic -proportional integral derivative controller for second order systems to simultaneously meet the time and frequency domain design specifications. The suitable loop-shape of the controlled system and the desired step response are considered as specifications in the time and frequency domains, respectively. The weighting factors, Q and R of the LQ controller are determined by the algebraic Riccati equation with respect to the limiting behavior and target function matching. Numerical examples show the effectiveness of the proposed LQ-PID tuning method

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Section: Introductionmentioning

confidence: 99%