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A method to construct a reference model for model reference adaptive control

ADVANCES IN MECHANICAL ENGINEERING 2019年第11期11卷

作者： Su, Shi-jie Zhu, Yuan-yuan Wang, Hai-rong Yun, Chen Jiangsu Univ Sci & Technol Sch Mech Engn 2 Mengxi Rd Zhenjiang 212003 Jiangsu Peoples R China Zhoushan Inst Calibrat & Testing Qual & Technol S Zhoushan Peoples R China

Model reference adaptive control takes the output of a reference model as the target and ensures that the actual output is consistent with the target. In this scenario, the reference model determines the performance of the control system. Constructing a reference model with specific performance is challenging, and most researchers construct the reference model by experience. As alternative frameworks, we propose two novel reference model construction methods, namely, zero-pole method and frequency response method. The zero-pole method establishes a nonlinear optimization model to ensure that the added zeros and poles are as far away from the imaginary axis as possible. In the case where this cannot be done, the frequency response method matches the system frequency response of the reference model and the given model to the extent possible using a nonlinear optimization model. Experimental results are presented to confirm that both methods can construct a reference model based on a given transfer function. Deviations in response between the reference models constructed using the two methods and the given model are compared, and the reasons for higher accuracy of the frequency response method are discussed.

关键词： Frequency response method model reference adaptive control reference model construction method zero-pole method

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