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Hierarchical parameter estimation of DFIG and drive train system in a wind turbine generator

Xueping PAN, Ping JU, Feng WU, Yuqing JIN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 367-376 doi: 10.1007/s11465-017-0429-y

Abstract:

A new hierarchical parameter estimation method for doubly fed induction generator (DFIG) and driveSecondly, a coordination estimation method is further applied to identify the parameters of the DFIGand the drive train simultaneously with the purpose of attaining the global optimal estimation resultsThe main benefit of the proposed scheme is the improved estimation accuracy.Estimation results confirm the applicability of the proposed estimation technique.

Keywords: wind turbine generator     DFIG     drive train system     hierarchical parameter estimation method     trajectory sensitivity    

Modified Performance Index Method for Parameter Estimation for Industrial Process with Time-varying

Zhang Chenghui

Strategic Study of CAE 2001, Volume 3, Issue 11,   Pages 54-59

Abstract:

A new estimation method based on modified performance index is proposed for time-varying process toavoid the ill-condition of least squares method.Based on the new method,a series of new recursive algorithms such as the new recursive least squaresThe new identification method can ease the ill-condition and improve the identification accuracy without

Keywords: parameter estimation     method of calculation     least square method     time-varying system     industrial production    

Estimation of load and resistance factors using the third-moment method based on the 3P-lognormal distribution

Yan-Gang ZHAO, Zhao-Hui LU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 315-322 doi: 10.1007/s11709-011-0117-7

Abstract: Load and resistance factors are generally obtained using the first order reliability method (FORM) inIn this article, the third-moment reliability index, based on the three-parameter lognormal (3P-lognormalA simple method based on the third-moment method for estimating load and resistance factors is then proposedUnlike the currently used method, the proposed method can be used to determine load and resistance factorsMoreover, the proposed method does not require the iterative computation of derivatives or any design

Keywords: load and resistance factors     third-moment method     three-parameter lognormal (3P-lognormal) distribution    

Adaptive compression method for underwater images based on perceived quality estimation Regular Papers

Ya-qiong CAI, Hai-xia ZOU, Fei YUAN

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 5,   Pages 716-730 doi: 10.1631/FITEE.1700737

Abstract: An assessment and prediction method of effectively compressed image quality can assist the system inmodel parameters by linear fitting, and finally predicts the perceived quality of the image compression methodThe presented method can effectively estimate the perceived quality of underwater compressed images,

Keywords: Underwater image compression     Set partitioning in hierarchical trees     Compressive sensing     Compression qualityestimation    

Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 55-65 doi: 10.1007/s11465-019-0545-y

Abstract: This study proposes a structural parameter design approach for an FSM system based on the quantitative

Keywords: fast-steering mirror     structural parameter     PI controller     bandwidth     notch filter    

Calibration method of mesoscopic parameter in sandy cobble soil triaxial test based on PFC3D

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 12,   Pages 1924-1933 doi: 10.1007/s11709-023-0028-4

Abstract: This paper presents a rapid and effective calibration method of mesoscopic parameters of a three-dimensionalThe method is based on a series of numerical tests and takes into account the significant influence ofThen, the multi-factor analysis of variance method is used to analyze the experimental results, the mesoscopicFinally, the parameter calibration problem is transformed into a multi-objective function optimization

Keywords: sandy cobble soil     particle flow code     orthogonal experiment     regression analysis     multi-objective optimization     calibration    

Target parameter estimation for OTFS-integrated radar and communications based on sparse reconstruction Research Article

Zhenkai ZHANG, Xiaoke SHANG, Yue XIAO,zhangzhenkai@just.edu.cn

Frontiers of Information Technology & Electronic Engineering 2024, Volume 25, Issue 5,   Pages 742-754 doi: 10.1631/FITEE.2300462

Abstract: To solve the parameter estimation problem of the OTFS-, we propose a parameter estimation method basedThe simulations demonstrate the effectiveness and superiority of the proposed parameter estimation algorithm

Keywords: Integrated radar and communications system     Orthogonal time–     frequency space     Target parameter estimation    

A novel period estimation method for X-ray pulsars based on frequency subdivision

Li-rong SHEN,Xiao-ping LI,Hai-feng SUN,Hai-yan FANG,Meng-fan XUE

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 10,   Pages 858-870 doi: 10.1631/FITEE.1500052

Abstract: Period estimation of X-ray pulsars plays an important role in X-ray pulsar based navigation (XPNAV).The fast Lomb periodogram is suitable for period estimation of X-ray pulsars, but its performance in(CLP) is proposed to improve precision of period estimation using short-time observation data.period estimation precision by 1–3 orders of magnitude compared with the fast Lomb periodogram and fastFurthermore, the proposed method performs better than efsearch (a period estimation method of HEAsoft

Keywords: Pulsar navigation     Period estimation     Frequency subdivision     Continuous Lomb periodogram    

Shallow foundation response variability due to soil and model parameter uncertainty

Prishati RAYCHOWDHURY,Sumit JINDAL

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 3,   Pages 237-251 doi: 10.1007/s11709-014-0242-1

Abstract: The present work intends to investigate the effect of soil and model parameter uncertainty on the response

Keywords: shallow foun dation     sensitivity analysis     centrifuge data     first-order-second-moment (FOSM) method     parameter    

Non-iterative parameter estimation of the 2R-1Cmodel suitable for low-cost embedded hardware Article

Mitar SIMIĆ, Zdenka BABIĆ, Vladimir RISOJEVIĆ, Goran M. STOJANOVIĆ

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 3,   Pages 476-490 doi: 10.1631/FITEE.1900112

Abstract: Parameter estimation of the 2R-1C model is usually performed using iterative methods that require high-performanceConsequently, there is a strong motivation to develop less time-consuming and more power-efficient parameterestimation methods.In this study, we propose the quadratic interpolation non-iterative parameter estimation (QINIPE) methodestimation (NIPE) method, while keeping the relative estimation error to less than 1% for all estimated

Keywords: 2R-1C model     Embedded systems     Parameter estimation     Non-iterative methods     Quadratic interpolation    

A model reference adaptive control based method for actuator delay estimation in real-time testing

Cheng CHEN, James M. RICLES

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 277-286 doi: 10.1007/s11709-010-0072-8

Abstract: This paper presents a model reference adaptive control based method to identify the parameter of a simplifieddiscrete model for servo-hydraulic dynamics and the resulting compensation method.using both numerical analysis and experimental results to evaluate the effectiveness of the proposed estimationmethod.

Keywords: real-time testing     actuator delay     compensation     adaptive control     MIT rule     discrete transfer function    

A multi-functional dynamic state estimator for error validation: measurement and parameter errors and Article

Mehdi AHMADI JIRDEHI,Reza HEMMATI,Vahid ABBASI,Hedayat SABOORI

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 11,   Pages 1218-1227 doi: 10.1631/FITEE.1500301

Abstract: propose a new and efficient algorithm to detect, identify, and correct measurement errors and branch parameterA dynamic state estimation algorithm is used based on the Kalman filter theory.The method uses three normalized vectors to process errors at each sampling time: normalized measurementAn IEEE 14-bus test system was used to verify and demonstrate the effectiveness of the proposed methodNumerical results are presented and discussed to show the accuracy of the method.

Keywords: Dynamic state estimation     Kalman filter     Measurement errors     Branch parameter errors     Sudden load changes    

Parameter estimation in exponential models by linear and nonlinear fitting methods Article

Ping YANG,Chao-peng WU,Yi-lu GUO,Hong-bo LIU,Hui HUANG,Hang-zhou WANG,Shu-yue ZHAN,Bang-yi TAO,Quan-quan MU,Qiang WANG,Hong SONG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 3,   Pages 434-444 doi: 10.1631/FITEE.1601683

Abstract: Estimation of unknown parameters in exponential models by linear and nonlinear fitting methods is discussedTaylor series expansion, it is proved theoretically that the parameters estimated by the linear fitting methodand that the nonlinear method gives more accurate results.estimated from underwater images and imaging distances, which supports the improvement in the accuracy of parameterestimation by the nonlinear fitting method.

Keywords: Exponential model     Parameter estimation     Linear least squares     Nonlinear fitting    

Design, fabrication, and characterization of hierarchical mechanical metamaterials

Frontiers of Mechanical Engineering 2024, Volume 19, Issue 1, doi: 10.1007/s11465-023-0776-9

Abstract: materials, such as bamboo and bone, often exhibit superior specific mechanical properties due to their hierarchicalUsing the principle of hierarchy as inspiration can facilitate the development of hierarchical mechanicalzigzag characteristic, and the toughness and energy absorption can be significantly enhanced by the hierarchicalFurthermore, the flexural stress–strain curves exhibit a nonlinear behavior, which can be attributed to the hierarchical

Keywords: 3D printing     mechanical metamaterials     hierarchical architecture     mechanical behavior     unmanned aerial    

Optimal Method of Capacitated Lot-Sizing Planning in Manufacturing Systems

CHANG Jian-feng, ZHONG Yue-xian, HAN Zan-dong

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 67-70 doi: 10.1007/s11465-005-0020-9

Abstract: capacitated lot-sizing problem considering an individual machine s production capacity using a two-layer hierarchicalmethod to minimize the sum of the dynamic inventory cost and the overtime penalty cost.The genetic algorithm, the parameter linear programming method, and a heuristic method were used in thedeveloped method.The method uses the genetic operator to define the lot-sizing matrix (the first layer), linear programming

Keywords: heuristic     two-layer hierarchical     algorithm     constraint     developed    

Title Author Date Type Operation

Hierarchical parameter estimation of DFIG and drive train system in a wind turbine generator

Xueping PAN, Ping JU, Feng WU, Yuqing JIN

Journal Article

Modified Performance Index Method for Parameter Estimation for Industrial Process with Time-varying

Zhang Chenghui

Journal Article

Estimation of load and resistance factors using the third-moment method based on the 3P-lognormal distribution

Yan-Gang ZHAO, Zhao-Hui LU

Journal Article

Adaptive compression method for underwater images based on perceived quality estimation

Ya-qiong CAI, Hai-xia ZOU, Fei YUAN

Journal Article

Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Journal Article

Calibration method of mesoscopic parameter in sandy cobble soil triaxial test based on PFC3D

Journal Article

Target parameter estimation for OTFS-integrated radar and communications based on sparse reconstruction

Zhenkai ZHANG, Xiaoke SHANG, Yue XIAO,zhangzhenkai@just.edu.cn

Journal Article

A novel period estimation method for X-ray pulsars based on frequency subdivision

Li-rong SHEN,Xiao-ping LI,Hai-feng SUN,Hai-yan FANG,Meng-fan XUE

Journal Article

Shallow foundation response variability due to soil and model parameter uncertainty

Prishati RAYCHOWDHURY,Sumit JINDAL

Journal Article

Non-iterative parameter estimation of the 2R-1Cmodel suitable for low-cost embedded hardware

Mitar SIMIĆ, Zdenka BABIĆ, Vladimir RISOJEVIĆ, Goran M. STOJANOVIĆ

Journal Article

A model reference adaptive control based method for actuator delay estimation in real-time testing

Cheng CHEN, James M. RICLES

Journal Article

A multi-functional dynamic state estimator for error validation: measurement and parameter errors and

Mehdi AHMADI JIRDEHI,Reza HEMMATI,Vahid ABBASI,Hedayat SABOORI

Journal Article

Parameter estimation in exponential models by linear and nonlinear fitting methods

Ping YANG,Chao-peng WU,Yi-lu GUO,Hong-bo LIU,Hui HUANG,Hang-zhou WANG,Shu-yue ZHAN,Bang-yi TAO,Quan-quan MU,Qiang WANG,Hong SONG

Journal Article

Design, fabrication, and characterization of hierarchical mechanical metamaterials

Journal Article

Optimal Method of Capacitated Lot-Sizing Planning in Manufacturing Systems

CHANG Jian-feng, ZHONG Yue-xian, HAN Zan-dong

Journal Article