AI Article Synopsis
- Controllers in industrial settings face challenges due to disturbances, making performance assessment crucial for satisfactory control.
- This paper tackles the negative impact of measurement noise on control performance assessment (CPA) using a method called dynamic data reconciliation (DDR) to enhance accuracy.
- Results from simulations and experiments in both SISO and MIMO systems indicate that using DDR significantly improves CPA outcomes when dealing with different types of noise.
Article Abstract
Due to the complexity of the industrial working environment, controllers are susceptible to various disturbance signals, resulting in unsatisfactory control performance. Therefore, it is especially important to assess the controller performance. Considering the harmful effect of measurement noise on controller performance assessment (CPA) based on generalized minimum variance control (GMVC), this paper proposes dynamic data reconciliation (DDR) to improve the accuracy of CPA based on GMVC. The paper first introduces CPA based on GMVC, and then analyzes the influence of measurement noise on GMVC based CPA index. DDR combined with GMVC based CPA is then proposed and analyzed in both SISO and MIMO systems to weaken the impact of measurement noise on CPA index. For both Gaussian distributed noise and non-Gaussian distributed noise, the formulation of DDR is derived from the Bayesian formula and maximum likelihood estimate. The effectiveness of the proposed method is verified in different case studies (involving both SISO and MIMO systems), and further verified by the control process of DC-AC converter. The simulation and experiment results demonstrate that the results of CPA based on GMVC can be obviously improved by using DDR.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.isatra.2021.01.047 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dynamic data reconciliation to improve the result of controller performance assessment based on GMVC.
ISA Trans
November 2021
National-Local Joint Engineering Laboratory for Digitalize Electrical Design Technology, Wenzhou University, Wenzhou 325035, China.
Article Synopsis
- Controllers in industrial settings face challenges due to disturbances, making performance assessment crucial for satisfactory control.
- This paper tackles the negative impact of measurement noise on control performance assessment (CPA) using a method called dynamic data reconciliation (DDR) to enhance accuracy.
- Results from simulations and experiments in both SISO and MIMO systems indicate that using DDR significantly improves CPA outcomes when dealing with different types of noise.
Wiener model based GMVC design considering sensor noise and delay.
ISA Trans
May 2019
Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada.
Even though there is a plethora of literature available for assessing linear control loop performance, they cannot be applied to the nonlinear control loops. In this paper, a nonlinear generalized minimum variance (NGMV) controller based on a single input-single output (SISO) Wiener model is proposed. The NGMV controller's performance is used as a benchmark for a class of nonlinear control loops.
View Article and Find Full Text PDFHeavy Drinking in College Students Is Associated with Accelerated Gray Matter Volumetric Decline over a 2 Year Period.
Front Behav Neurosci
September 2017
Olin Neuropsychiatry Research Center, Hartford HealthCare Corporation, Hartford, CT, United States.
Heavy and/or harmful alcohol use while in college is a perennial and significant public health issue. Despite the plethora of cross-sectional research suggesting deleterious effects of alcohol on the brain, there is a lack of literature investigating the longitudinal effects of alcohol consumption on the adolescent brain. We aim to probe the longitudinal effects of college drinking on gray matter change in students during this crucial neurodevelopmental period.
View Article and Find Full Text PDFPredictive value of early brain atrophy on response in patients treated with interferon β.
Neurol Neuroimmunol Neuroinflamm
August 2015
Servei de Neurologia/Neuroimmunologia (F.C.P.-M., J.S.-G., A.V.-J., J.R., M.T., X.M.) Multiple Sclerosis Centre of Catalonia (Cemcat) and Unitat de Ressonància Magnètica (Servei de Radiologia) (C.A., D.P., A.R.), Hospital Universitari Vall d'Hebron, Barcelona, Spain; and Departament de Medicina (F.C.P.-M.), Universitat Autònoma de Barcelona, Barcelona, Spain.
Objective: To investigate the association between brain volume loss during the first year of interferon treatment and clinical outcome at 4 years.
Methods: Patients with multiple sclerosis initiating interferon β were clinically evaluated every 6 months for the presence of relapses and assessment of global disability using the Expanded Disability Status Scale (EDSS). MRI scans were performed at baseline and after 12 months, and the percentage of brain volume change (PBVC), brain parenchymal volume change (BPVc%), gray matter volume change (GMVc%), and white matter volume change (WMVc%) were estimated.
Genetic relationships between carcass cut weights predicted from video image analysis and other performance traits in cattle.
Animal
September 2012
Irish Cattle Breeding Federation, Highfield House, Bandon, Co. Cork, Ireland.
The objective of this study was to quantify the genetic associations between a range of carcass-related traits including wholesale cut weights predicted from video image analysis (VIA) technology, and a range of pre-slaughter performance traits in commercial Irish cattle. Predicted carcass cut weights comprised of cut weights based on retail value: lower value cuts (LVC), medium value cuts (MVC), high value cuts (HVC) and very high value cuts (VHVC), as well as total meat, fat and bone weights. Four main sources of data were used in the genetic analyses: price data of live animals collected from livestock auctions, live-weight data and linear type collected from both commercial and pedigree farms as well as from livestock auctions and weanling quality recorded on-farm.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!