Adaptive RBF Neural Network Sliding Mode Control for a DEAP Linear Actuator
Adaptive RBF Neural Network Sliding Mode Control for a DEAP Linear Actuator
复制标题
DEAP 线性执行器的自适应 RBF 神经网络滑模控制
DOI:
10.23940/ijpe.17.04.p7.400408
复制
发表时间:
2017-07
期刊:
影响因子:
--
通讯作者:
Wang Qinglin
中科院分区:
文献类型:
--
作者:
Qiu Dehui;Chen Yu;Wang Qinglin
Dielectric electro-active polymer (DEAP) is a new smart material named “artificial muscles”, which has a remarkable potential in the field of biomimetic robots. However, hysteresis nonlinearity widely exists in this material, which will reduce the performance of tracking precision and system stability. To deal with this situation, a radial basis function (RBF) neural network combined with sliding mode control algorithm is presented for a second-order DEAP linear actuator. Firstly, an inverse hysteresis operator based on Prandtl-Ishlinskii (P-I) model is used to eliminate hysteresis behavior. Secondly, an adaptive RBF neural network sliding mode controller is designed to obtain high tracking accuracy and keep system stability. The proposed algorithm makes the tracking error converge to zero and keeps the system globally stable in the case of external disturbances and parameter variations. Simulation results demonstrate that the proposed controller has the superiority to a pure sliding mode controller.
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2012 American Control Conference (ACC)
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