Stable direct adaptive periodic control using only plant order knowledge
✍ Scribed by David S. Bayard
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 847 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0890-6327
No coin nor oath required. For personal study only.
✦ Synopsis
The main contribution of this paper is to put stability requirements for convergence of direct adaptive periodic controllers on an equal footing with requirements for indirect adaptive periodic control as set forth by Lozano. The resulting stability condition is simply that the plant order is known apriori. No other prior plant knowledge is used (e.g. relative degree, high-frequency gain, etc.) and persistent excitation is not required. More importantly, no assumption or knowledge is required as to whether the plant is minimum or non-minimum phase. A numerical example is given to demonstrate the method and some guidelines are given for improving the adaptive transient response.