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A Tuning Algorithm for LQ-PID Controllers using the Combined Time and Frequency-Domain Control Methodopen access
- Authors
- Kim, Chang-Hyun; Lee, Ju; Lee, Hyung-Woo
- Issue Date
- May-2015
- Publisher
- SPRINGER SINGAPORE PTE LTD
- Keywords
- LQ-PID Control; Combined method; Loop-Shaping; Target function
- Citation
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v.10, no.3, pp.1244 - 1254
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
- Volume
- 10
- Number
- 3
- Start Page
- 1244
- End Page
- 1254
- ISSN
- 1975-0102
- Abstract
- This paper proposes a new method for tuning a linear quadratic 7 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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