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本文着重研究了已获得的模型参考自适应算法在液压伺服系统微机实现中遇到的一些具体技术问题,包括微机实时控制软件包的编制,参考模型参数的确定,采样周期的选择,A/D、D/A转换器的位数,自适应待定系数的选择,以及这些参数对控制系统性能的影响。为了提高微机控制系统的可靠性,采取了微机自适应控制信号和古典回路信号并行工作的方法。介绍了在微机实现过程中采用的理论分析、仿真试验和实际系统实验调试相结合的方法,及其取得的效果。
This paper focuses on some of the specific technical problems encountered in the realization of the hydraulic servo system by the model reference adaptive algorithm, including the preparation of real-time control software package, the determination of reference model parameters, the selection of sampling period, A / D , The number of bits in the D / A converter, the choice of adaptive pending coefficients, and how these parameters affect the performance of the control system. In order to improve the reliability of microcomputer control system, a method of computer adaptive control signal and classical loop signal working in parallel was adopted. Introduced in the process of computer implementation of the theoretical analysis used in simulation experiments and the actual system commissioning method combined with the results achieved.