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Abstract：
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In order to improve the influence of sliding mode control method on the unmatched interference of pump-controlled electro-hydraulic servo system with large load output, the backstepping method was used to compensate the unmatched interference of the system, and the conflict between sliding mode and backstepping control was eliminated by the smooth continuous first-order guided sliding mode technology. Then, the accuracy of sliding mode backstepping control design was verified by co-simulation. The results show that the results of the sliding mode backstepping controller are the closest to the reference signal, and the error is the smallest to show the best stability. Furthermore, the sliding mode backstepping controller has the minimum output current and the lowest fluctuation effect to prove that the designed smooth continuous sliding mode control law effectively suppresses the output jitter, and the sliding mode backstepping controller achieves smaller IMSE and IAPE than the backstepping controller and the PID controller to indicate that the sliding mode backstepping controller achieves better control performance than the PID and backstepping controllers under the condition of low output strength of the controller. Thus, the sliding mode backstepping controller has the advantages of both backstepping control and sliding mode control and can achieve better control performance without establishing an accurate model.
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Funds：
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河南省交通运输科技计划项目（2015Y10）
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AuthorIntro：
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作者简介：朱学军（1965-），男，学士，副教授，E-mail：Zhuxuejun2021@163.com
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Reference：
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