Approximately time-optimal fuzzy control of a two-tank system

Autor:	Sebastian Engell, T. Heckenthaler
Rok vydání:	1994
Předmět:	Mathematical optimization Adaptive control Automatic control Control and Systems Engineering Control theory Modeling and Simulation Fuzzy control system Electrical and Electronic Engineering Nonlinear control Linear-quadratic-Gaussian control Optimal control Sliding mode control Mathematics
Zdroj:	IEEE Control Systems. 14:24-30
ISSN:	1941-000X 1066-033X
Popis:	This article deals with the level controls in a laboratory two-tank system. The plant is strongly nonlinear due to the basic dynamic equations and the characteristics of the valves. We develop a nonlinear control law which achieves robust approximately time-optimal control over the full range of operation conditions. The development is based on ideas from fuzzy control, but in contrast to usual fuzzy controller designs, most of the rules are not derived from heuristics but rather are mathematical formulas which, together with the standard fuzzy quantization of the system's variables, approximate the time-optimal control law. This approximation is improved by heuristic rules which were gained from the observation of the behavior of the controlled plant. The resulting nonlinear control law exhibits a performance which is neither attainable with standard linear control nor with classical time-optimal control. >
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::df8b1214beab21bb19afd7a7aaa722c8 https://doi.org/10.1109/37.291460 Zobrazit plný text záznamu