Reinforcement Learning-Based Decentralized Safety Control for Constrained Interconnected Nonlinear Safety-Critical Systems

This paper addresses the problem of decentralized safety control (DSC) of constrained interconnected nonlinear safety-critical systems under reinforcement learning strategies, where asymmetric input constraints and security constraints are considered. To begin with, improved performance functions as...

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Main Authors: Chunbin Qin, Yinliang Wu, Jishi Zhang, Tianzeng Zhu
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/25/8/1158
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author Chunbin Qin
Yinliang Wu
Jishi Zhang
Tianzeng Zhu
author_facet Chunbin Qin
Yinliang Wu
Jishi Zhang
Tianzeng Zhu
author_sort Chunbin Qin
collection DOAJ
description This paper addresses the problem of decentralized safety control (DSC) of constrained interconnected nonlinear safety-critical systems under reinforcement learning strategies, where asymmetric input constraints and security constraints are considered. To begin with, improved performance functions associated with the actuator estimates for each auxiliary subsystem are constructed. Then, the decentralized control problem with security constraints and asymmetric input constraints is transformed into an equivalent decentralized control problem with asymmetric input constraints using the barrier function. This approach ensures that safety-critical systems operate and learn optimal DSC policies within their safe global domains. Then, the optimal control strategy is shown to ensure that the entire system is uniformly ultimately bounded (UUB). In addition, all signals in the closed-loop auxiliary subsystem, based on Lyapunov theory, are uniformly ultimately bounded, and the effectiveness of the designed method is verified by practical simulation.
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spelling doaj.art-432ab25079134737a22c80c20b20b0412023-11-19T00:59:22ZengMDPI AGEntropy1099-43002023-08-01258115810.3390/e25081158Reinforcement Learning-Based Decentralized Safety Control for Constrained Interconnected Nonlinear Safety-Critical SystemsChunbin Qin0Yinliang Wu1Jishi Zhang2Tianzeng Zhu3School of Artificial Intelligence, Henan University, Zhengzhou 450046, ChinaSchool of Artificial Intelligence, Henan University, Zhengzhou 450046, ChinaSchool of Software, Henan University, Kaifeng 475000, ChinaSchool of Artificial Intelligence, Henan University, Zhengzhou 450046, ChinaThis paper addresses the problem of decentralized safety control (DSC) of constrained interconnected nonlinear safety-critical systems under reinforcement learning strategies, where asymmetric input constraints and security constraints are considered. To begin with, improved performance functions associated with the actuator estimates for each auxiliary subsystem are constructed. Then, the decentralized control problem with security constraints and asymmetric input constraints is transformed into an equivalent decentralized control problem with asymmetric input constraints using the barrier function. This approach ensures that safety-critical systems operate and learn optimal DSC policies within their safe global domains. Then, the optimal control strategy is shown to ensure that the entire system is uniformly ultimately bounded (UUB). In addition, all signals in the closed-loop auxiliary subsystem, based on Lyapunov theory, are uniformly ultimately bounded, and the effectiveness of the designed method is verified by practical simulation.https://www.mdpi.com/1099-4300/25/8/1158interconnected nonlinear safety-critical systemsbarrier functionasymmetric input constraintssafety constraintsdecentralized control
spellingShingle Chunbin Qin
Yinliang Wu
Jishi Zhang
Tianzeng Zhu
Reinforcement Learning-Based Decentralized Safety Control for Constrained Interconnected Nonlinear Safety-Critical Systems
Entropy
interconnected nonlinear safety-critical systems
barrier function
asymmetric input constraints
safety constraints
decentralized control
title Reinforcement Learning-Based Decentralized Safety Control for Constrained Interconnected Nonlinear Safety-Critical Systems
title_full Reinforcement Learning-Based Decentralized Safety Control for Constrained Interconnected Nonlinear Safety-Critical Systems
title_fullStr Reinforcement Learning-Based Decentralized Safety Control for Constrained Interconnected Nonlinear Safety-Critical Systems
title_full_unstemmed Reinforcement Learning-Based Decentralized Safety Control for Constrained Interconnected Nonlinear Safety-Critical Systems
title_short Reinforcement Learning-Based Decentralized Safety Control for Constrained Interconnected Nonlinear Safety-Critical Systems
title_sort reinforcement learning based decentralized safety control for constrained interconnected nonlinear safety critical systems
topic interconnected nonlinear safety-critical systems
barrier function
asymmetric input constraints
safety constraints
decentralized control
url https://www.mdpi.com/1099-4300/25/8/1158
work_keys_str_mv AT chunbinqin reinforcementlearningbaseddecentralizedsafetycontrolforconstrainedinterconnectednonlinearsafetycriticalsystems
AT yinliangwu reinforcementlearningbaseddecentralizedsafetycontrolforconstrainedinterconnectednonlinearsafetycriticalsystems
AT jishizhang reinforcementlearningbaseddecentralizedsafetycontrolforconstrainedinterconnectednonlinearsafetycriticalsystems
AT tianzengzhu reinforcementlearningbaseddecentralizedsafetycontrolforconstrainedinterconnectednonlinearsafetycriticalsystems