文献类型：期刊文献

英文题名：A Vector-Based Approach for Controller Performance Assessment

作者：Wu, Qun[1];Du, Wenli[1];Qian, Feng[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Control & Optimizat Chem Proc, Shanghai 200237, Peoples R China

年份：2012

卷号：51

期号：48

起止页码：15745

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20125015802631);WOS:【SCI-EXPANDED(收录号:WOS:000311864500021)】；

基金：The author thank the anonymous reviewers for their critical comments, which have helped to enhance the depth of the presentation. This work is supported by Major State Basic Research Development Program of China (No. 2012CB720500), National Natural Science Foundation of China (No. 61134007, No. 61222303), National High-Tech Research and Development Program of China (No. 2012AA040307), Shanghai Key Technologies R&D program (No. 12dz1125100) and Shanghai Leading Academic Discipline Project (No. B504).

语种：英文

外文关键词：Controllers - Feedback control - Signal processing - Channel estimation - MIMO systems - Telecommunication repeaters - Vectors

摘要：Considering that the traditional method for controller performance assessment is mainly based on minimum variance, which is an unattainable boundary, a new vector-based approach is proposed that is driven by the historical data and is not very dependent on prior knowledge of the process unit. A performance vector is designed to represent the controller precision and its response speed. The length and angle of the vector are constructed using statistical theory and signal processing techniques, which is the key step in the proposed method. It works well for disturbance rejection situation in single-input-single-output (SISO) systems. In particular, an index P-f is introduced as a measurement of the controller performance to show how much potential the control loop will still have for improvement. The Wood-Berry model is used for simulation studies to demonstrate the effectiveness of the proposed method; then, the possibility of extending the method to a multiple-input-multiple-output (MIMO) system is also discussed here.