Discretization-Robust Safety Barrier of Partial Differential Equation
2023 11TH INTERNATIONAL CONFERENCE ON CONTROL, MECHATRONICS AND AUTOMATION, ICCMA(2023)
摘要
This paper presents a method for ensuring the safety of a system governed by partial differential equation (PDE). Our approach is to spatially discretize the PDE to obtain an ordinary differential equation (ODE) that approximates the system behavior with a known maximal approximation error. A safe controller is subsequently designed for the ODE using control barrier function while taking the approximation error into account. The framework is verified on the control of a flexible beam modeled as an Euler-Bernoulli beam. The designed controller is verified in a simulation of a simple motion that exemplifies a scenario of remote maintenance of the DEMO fusion power plant.
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关键词
control barrier function (CBF),robust safety barrier,over approximation,partial differential equation (PDE)
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