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Diffeomorphism-transformed adaptive robust control for dual-arm collaborative robot systems with inequality
Qilin Wu1, Kaixuan Yin2, Zicheng Zhu2
1School of Advanced Manufacturing Engineering, Hefei University, Hefei, Anhui 230601, China; Anhui Provincial Engineering Technology Research Center of Intelligent Vehicle Control and Integrated Design Technology, Hefei 230601, China.
Abstract:
To address uncertainty and inequality constraints in dual-arm collaborative robot systems, this paper proposes an adaptive robust control strategy based on the diffeomorphism technique. Specifically, system uncertainties are characterized using fuzzy set theory, while inequality constraints are systematically incorporated into the constraint-following control framework via diffeomorphism. Moreover, an adaptive robust control scheme is developed to ensure practical stability in the presence of uncertainties. In addition, the control parameters are optimized based on the fuzzy description of uncertainty, striking a balance between system performance and control cost. Finally, numerical simulations are conducted to validate the effectiveness of the proposed scheme.
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