基于输出方差限制的广义多变量控制系统性能评价

李大字; 焦军胜; 靳其兵; 高彦臣

doi:10.3724/SP.J.1004.2013.00654

基于输出方差限制的广义多变量控制系统性能评价

doi: 10.3724/SP.J.1004.2013.00654

1.
北京化工大学信息科学与技术学院北京 100029;
2.
青岛高校软件股份有限公司青岛 266045

详细信息

通讯作者:
李大字

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出版历程
- 收稿日期: 2012-05-15
- 修回日期: 2012-09-22
- 刊出日期: 2013-05-20

Generalized Multivariable Control System Performance Assessment Based on Output Variance Limit

1.
School of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029;
2.
Qingdao Gaoxiao Software Control Stock Co.Ltd., Qingdao 266045

摘要

摘要: 研究具有线性时变扰动的多变量控制系统性能评价的方法.通过将时变扰动分为三类定常扰动, 进而构造一个加权的性能指标,权值矩阵与不同扰动类型和优先级相对应.在指定合理的输出方差后, 运用对角关联矩阵方法明确计算出广义多变量系统闭环输出方差的上下限值.经过ITAE (Integral of time-weighted absolute value of the error) 寻优得到最小输出方差下的控制器参数,并给出可实现的最优控制器模型.仿真实例证明了该方法计算的简便性和有效性.
- 输出方差限制 /
- 线性时变扰动 /
- 广义多变量系统 /
- 性能评价
Abstract: This paper focuses on the multivariable control system performance assessment method under linear time-varying disturbance. Through dividing time varying disturbance into three types of constant disturbance, a weighted performance index is constructed and a weight matrix corresponds to different disturbance types and priorities. After specifying reasonable output variance, the upper and lower bounds of the generalized multivariable system closed-loop output variance could be obtained through calculation of diagonal interactors. Controller parameters with minimum variance can be achieved and an optimal control model is obtained according to integral of time-weighted absolute value of the error (ITAE) optimization. Simulation results show the simplicity and availability of the proposed computing method.
- Output variance bound, linear time-varying disturbance, generalized multivariable system, performance assessment /

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参考文献(1)

[1]

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