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arXiv 2004.03856eess.SYcs.SYmath.OC
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高相对度随机控制李雅普诺夫函数与障碍函数

High-Relative Degree Stochastic Control Lyapunov and Barrier Functions

Meenakshi Sarkar, Debasish Ghose, Evangelos A. Theodorou

摘要:

我们引入高相对度随机控制李雅普诺夫函数和障碍函数作为一种手段,以确保系统的渐近稳定性和纳入状态依赖的高相对度安全约束的非线性随机系统。我们提出的配方也提供了一个概括现有的文献控制李雅普诺夫和障碍函数的随机系统。控制策略的评估使用的是基于控制李雅普诺夫和障碍函数的约束二次规划。我们提出的控制设计通过仿真实验验证相对度2系统(2维汽车导航)和相对度4系统(两连杆摆与弹性致动器)。

英文摘要:

We introduce High-Relative Degree Stochastic Control Lyapunov functions and Barrier Functions as a means to ensure asymptotic stability of the system and incorporate state dependent high relative degree safety constraints on a non-linear stochastic systems. Our proposed formulation also provides a generalisation to the existing literature on control Lyapunov and barrier functions for stochastic systems. The control policies are evaluated using a constrained quadratic program that is based on control Lyapunov and barrier functions. Our proposed control design is validated via simulated experiments on a relative degree 2 system (2 dimensional car navigation) and relative degree 4 system (two-link pendulum with elastic actuator).

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