Optimal directionality compensation in processes with input saturation non-linearities
Optimal directionality compensation in processes with input saturation non-linearities
复制标题
输入饱和非线性过程中的最佳方向性补偿
DOI：
10.1080/002071799220047
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发表时间：
1999
影响因子：
2.1
通讯作者：
S. Valluri
中科院分区：
文献类型：
--
作者：
M. Soroush;S. Valluri
定义了输入受限过程中的过程方向性概念，刻画了不具有过程方向性的过程类。针对具有执行器饱和非线性的非线性过程，提出了一种最优方向性补偿器。给定无约束控制器输出和所考虑的过程的特征（解耦）矩阵，补偿器计算最优约束（可行）过程输入，其导致过程响应尽可能"接近"相同过程对无约束控制器输出的响应。该补偿器可用于线性和非线性过程，而与所使用的控制器类型无关。对于其非奇异特征矩阵可以通过行或列重排对角化的过程，最优方向性补偿器等同于一系列限制器（裁剪器）;这类过程在短时间内不表现出过程方向性。
A notion of process directionality in input-constrained processes is defined, and the class of processes that do not exhibit the process directionality is characterized. An optimal directionality compensator for non-linear processes with actuator saturation non-linearities is presented. Given an unconstrained controller output and the characteristic (decoupling) matrix of the process under consideration, the compensator calculates an optimal constrained (feasible) process input that results in a process response as 'close' as possible to the response of the same process to the unconstrained controller output. The compensator can be used for both linear and non-linear processes, irrespective of the type of controller being used. For processes whose non-singular characteristic matrix can be made diagonal by row or column rearrangements, the optimal directionality compensator is identical to a series of limiters (clippers); this class of processes does not exhibit the process directionality over a short time...