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Method for synthesis of high-accuracy dynamic non-linear control systems

机译:高精度动态非线性控制系统的合成方法

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Optical Engineering + Application conference in 2016 had only few reports dedicated to high-accuracy position control systems for optical complexes. However, at SPIE Optics + Photonics Exhibition 2016 dozens of companies offered such projects. In that respect, this report may be of interest for academic community. The main method for assessment of performance of automatic control systems is assessment of stability of a system as it allows the evaluation of dynamics and accuracy as well as the method for additional adjustment and technological capacity of the whole complex comprising the system. As a rule, complex systems do not reduce to linear systems or other known variants, so their analysis is normally based on modeling or simplified calculation. In the suggested paper the known criterion of stability for non-linear systems by Popov involves not frequency locus of linear part, but logarithmic frequency characteristics of the system, including non-linear frequency characteristics. It allows the development of conditions of stability and methods of adjustment for such complex systems as servo drives with non-rigid mechanics and alternating-current systems which cannot be analyzed with the help of known methods, In the systems where the stated methods are used accuracy and speed performance are increased fivefold at an average. All theoretical calculations are confirmed by experiments and modeling.
机译:在2016年的光学工程+应用大会上,只有很少的报告专门针对光学配合物的高精度位置控制系统。但是,在2016年的SPIE Optics + Photonics Exhibition中,数十家公司提供了此类项目。在这方面,该报告可能引起学术界的兴趣。评估自动控制系统性能的主要方法是评估系统的稳定性,因为它可以评估动力学和精度,以及用于对整个系统进行综合调整和提高技术能力的方法。通常,复杂的系统不会简化为线性系统或其他已知的变体,因此它们的分析通常基于建模或简化的计算。在建议的论文中,Popov对于非线性系统的稳定性的已知判据不涉及线性部分的频率轨迹,而是涉及系统的对数频率特性,包括非线性频率特性。它允许开发复杂条件的稳定性条件和调整方法,例如具有非刚性力学的伺服驱动器和交流系统,这些复杂系统无法借助已知方法进行分析。在使用所述方法的系统中,精度和速度性能平均提高了五倍。所有理论计算均通过实验和建模得到证实。

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