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首页> 外文期刊>IEEE Transactions on Control Systems Technology >Robustness analysis and control system design for a hydraulic servo system
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Robustness analysis and control system design for a hydraulic servo system

机译：液压伺服系统的鲁棒性分析与控制系统设计

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摘要

Treats the robustness analysis and control system design for the hydraulic servo system in a continuously variable transmission (CVT). The hydraulic system is subject to many uncertainties because of linearization, changes in temperature and errors in specified data. All these uncertainties are modeled in bounded and structured form, and the system is represented by a linear fractional transformation such that singular value and /spl mu/ analysis and design methods can be used. Four control designs are proposed: classical PID control, H/sub /spl infin// (sub)optimal control, /spl mu/ synthesis with D-K iteration, /spl mu/ synthesis with PID parameter search. For each of them, the robustness of stability and performance is analyzed with singular value and p tests. The results confirm that the singular value test may be conservative compared to the /spl mu/ test. When, for this specific control system, the /spl mu/ analysis method is combined with a PID control structure, it can be guaranteed that the stability and performance robustness are satisfied and the control structure is as simple as a PID controller. Simulations are made for all the control designs.
机译：处理无级变速器（CVT）中液压伺服系统的鲁棒性分析和控制系统设计。由于线性化，温度变化和指定数据中的误差，液压系统存在许多不确定性。所有这些不确定性都以有界和结构化的形式建模，并且系统由线性分数变换表示，因此可以使用奇异值和/ spl mu /分析和设计方法。提出了四种控制设计：经典PID控制，H / sub / spl infin //（子）最优控制，/ spl mu /带有D-K迭代的综合，/ ​​spl mu /带有PID参数搜索的综合。对于它们中的每一个，都通过奇异值和p检验分析了稳定性和性能的鲁棒性。结果证实，与/ spl mu /检验相比，奇异值检验可能是保守的。对于这种特定的控制系统，将/ spl mu /分析方法与PID控制结构结合使用时，可以确保满足稳定性和性能鲁棒性，并且控制结构与PID控制器一样简单。对所有控制设计进行仿真。

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