A novel active disturbance rejection-based control strategy for a gun control system |
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Authors: | Qiang Gao Zhan Sun Guolai Yang Runmin Hou Li Wang Yuanlong Hou |
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Affiliation: | 1. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210014, JS, China 2. Institute of North Automatic Control Technology, TY, 030006, China
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Abstract: | To compensate for the nonlinearity and to achieve finely-tuned tracking accuracy of a gun control system driven by an AC machine, an improved active disturbance rejection control (IADRC) strategy with neural network embedding (NN-IADRC) is developed in this paper. The proposed IADRC, which has amnestic memory effects, can be regarded as an extension of the conventional ADRC (CADRC), making it a special case of the IADRC. To further attenuate the dependence on system models and enhance the disturbance rejection capacities of the IADRC strategy, an on-line NN-based optimum updating approach is also developed in this paper. Finally, a series of experiments are conducted on the semi-physical simulation platform to estimate the performance of the control system and the effects of the memory factor on the system. The experimental results confirm that the proposed NN-IADRC is highly robust. The results also confirm that it performs more excellently than the CADRC and that its fine tuning has attained tracking accuracy. |
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