The Method of Normalized Correlations: A Fast Parameter Estimation Method for Random Processes and Isotropic Random Fields That Focuses on Short-Range Dependence

Technometrics ◽  
2009 ◽  
Vol 51 (2) ◽  
pp. 173-185 ◽  
Author(s):  
Milan Žukovič ◽  
Dionissios T. Hristopulos
Keyword(s):  
Parameter Estimation ◽  
Random Fields ◽  
Short Range ◽  
Estimation Method ◽  
Random Processes ◽  
Parameter Estimation Method ◽  
Isotropic Random

scholarly journals Modeling and Fault Diagnosis of Interturn Short Circuit for Five-Phase Permanent Magnet Synchronous Motor

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Jian-wei Yang ◽  
Man-feng Dou ◽  
Zhi-yong Dai
Keyword(s):  
Parameter Estimation ◽  
Fault Diagnosis ◽  
Permanent Magnet ◽  
Fault Tolerant ◽  
Short Circuit ◽  
Estimation Method ◽  
Trust Region ◽  
Fault Tolerant Control ◽  
Trust Region Algorithm ◽  
Parameter Estimation Method

Taking advantage of the high reliability, multiphase permanent magnet synchronous motors (PMSMs), such as five-phase PMSM and six-phase PMSM, are widely used in fault-tolerant control applications. And one of the important fault-tolerant control problems is fault diagnosis. In most existing literatures, the fault diagnosis problem focuses on the three-phase PMSM. In this paper, compared to the most existing fault diagnosis approaches, a fault diagnosis method for Interturn short circuit (ITSC) fault of five-phase PMSM based on the trust region algorithm is presented. This paper has two contributions. (1) Analyzing the physical parameters of the motor, such as resistances and inductances, a novel mathematic model for ITSC fault of five-phase PMSM is established. (2) Introducing an object function related to the Interturn short circuit ratio, the fault parameters identification problem is reformulated as the extreme seeking problem. A trust region algorithm based parameter estimation method is proposed for tracking the actual Interturn short circuit ratio. The simulation and experimental results have validated the effectiveness of the proposed parameter estimation method.

A Bayesian parameter estimation method applied to a marine ecosystem model for the coastal Gulf of Alaska

2013 ◽  
Vol 258 ◽  
pp. 122-133 ◽  
Author(s):  
J. Fiechter ◽  
R. Herbei ◽  
W. Leeds ◽  
J. Brown ◽  
R. Milliff ◽  
...  
Keyword(s):  
Parameter Estimation ◽  
Marine Ecosystem ◽  
Estimation Method ◽  
Gulf Of Alaska ◽  
Ecosystem Model ◽  
Bayesian Parameter Estimation ◽  
Parameter Estimation Method ◽  
Marine Ecosystem Model
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