Transactions of the Institute of Systems, Control and Information Engineers
Online ISSN : 2185-811X
Print ISSN : 1342-5668
Derivation of Stabilizing Controller Based on Minimal-Order Observer and Application to Design of Frequency-Shaping ILQ Servo System
Keiko NAKAMURAMasaya SAKAIKen'ichi NAKASHIMATakao FUJII
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2001 Volume 14 Issue 2 Pages 62-70

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Abstract

In our preceding paper, a design method for an ILQ robust servo system with a full-order obsever and a free parameter was proposed. In this paper, we propose a similar method for an ILQ servo system with a minimal-order observer and a free parameter. First, we derive a stabilizing controller based on a minimal-order observer from a full-order observer-based stabilizing controller by equivalent transformation. Then we apply it to design a frequency-shaping ILQ servo system. Finally, we show a design example for a magnetic levitaion system.

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