✦ LIBER ✦
A model reference adaptive controller for systems with uncertain relative degrees r,r+1 or r+2 and unknown signs of high-frequency gains
✍ Scribed by Yoshihiko Miyasato
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 138 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0005-1098
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✦ Synopsis
In the present paper, a design method of model reference adaptive controllers for processes with uncertain relative degrees r, r#1 or r#2 (r3N), and with unknown signs of high-frequency gains, is presented. This is an extension of Morse's adaptive controllers where it was assumed that the relative degrees are uncertain but known to be 1 or 2. It is shown that single adaptive control schemes can deal with unknown signs of high-frequency gains, and enlarged uncertainties of relative degrees compared with the previous works, and that the resulting model reference adaptive control systems are asymptotically stable.