| Peer-Reviewed

The Estimation of Dynamic Motions of a Constraint Wind Turbine for the Safety- Control with the Indirect Measurement

Received: 27 October 2014     Accepted: 12 November 2014     Published: 20 November 2014
Views:       Downloads:
Abstract

This work shows a method to develop a safety control mode according to a wind turbine based on the operating principle of the Darrieus rotor and to estimate a model of a safety control for a wind turbine. It is not easy to timely righteously estimate and evaluate the states. But it is very important for the safe operation in time domain system. The synthesis of this problem presumes that all state variables are observable for the concerned system. But it seems that it is not always feasible to measure all of states directly. A practical way to solve these problems is the estimation of the state variables by the use of the observers which can estimate system characteristics of linear or nonlinear states and effects as a mode, so called, “Indirect measurement”. For this procedure, the mathematical model of the concerned physical system which consists of a vertical standing shaft with two journal bearings at the ends of the rotor is derived with the significant remarks such as friction, gravitation, and Coriolis force. This is a basic system. The concrete assignment is to design the observer that estimates the characteristics of the states and velocities based on the measurement vectors. The main artifice is to approximate the characteristics with a fictitious model that may describe the modes of system errors. As a practical and convenient fictitious model, the characteristics of nonlinear effects are assumed as approximately stepwise contact. An identity observer is obtained whose state variables are the estimate of the state variable of the corresponding “observer system”. It consists of a simulated model with a correction feedback of the estimation

Published in International Journal of Science, Technology and Society (Volume 2, Issue 6)
DOI 10.11648/j.ijsts.20140206.13
Page(s) 179-185
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

System Diagnosis, Wind Turbine, Observer, Constraint, Indirect Measurement

References
[1] R.V. Beard, Failure accommodation in linear system through self recognition, Rept. MVT-71-1, Man vehicle laboratory, M.I.T., Cambridge, Mass., Feburar (2005)
[2] R. J. Patton and S. M. Kangetehe, Robust fault diagnosis using eigen structure assignment of observers, In R, Patton, P.
[3] Frank, and R. Clark, Herausgeber, Fault diagnosis in dynamic systems, Prentice Hall (1984)
[4] R. Iserman, Identification dynamischer systeme, Band I and II, Spring Verlag, Berlin(1984)
[5] P.C. Mueller, Estimation and compensation of nonlinearities, Proc. Of 1st Asian Confer., Tokyo, (1994) 228-234.
[6] R.W. Park, Estimation of a mass unbalance under the crack on the rotating shaft, ICASE, Vol. 2, No. 4, (2000) 228-234.
[7] R. W. Park, Crack detection, localization and estimation of a depth in a turbo rotor, KSME International Journal, V01. 14, No. 7, (2000), 732-729.
[8] R.W. Park and P. C. Mueller, A contribution to crack detection, localization and estimation of a depth in a turbo rotor, ASCC, proc. Vol. II, (1997) 427-430
[9] R. W. Park and S. Cho, Noise and fault diagnosis using control theory, international session paper, Proc 13th Korea Automation Control Conference, ICASE, (1998) 301-307.
[10] R. W. Park, A system diagnosis through the recognition of the mode of dynamic motions of a shaft by the indirect measurement in journal bearing, The 28th International Symposium 0n Automation and Robotic in Construction, ISARC, (2011) 233-238.
Cite This Article
  • APA Style

    Raiwung Park. (2014). The Estimation of Dynamic Motions of a Constraint Wind Turbine for the Safety- Control with the Indirect Measurement. International Journal of Science, Technology and Society, 2(6), 179-185. https://doi.org/10.11648/j.ijsts.20140206.13

    Copy | Download

    ACS Style

    Raiwung Park. The Estimation of Dynamic Motions of a Constraint Wind Turbine for the Safety- Control with the Indirect Measurement. Int. J. Sci. Technol. Soc. 2014, 2(6), 179-185. doi: 10.11648/j.ijsts.20140206.13

    Copy | Download

    AMA Style

    Raiwung Park. The Estimation of Dynamic Motions of a Constraint Wind Turbine for the Safety- Control with the Indirect Measurement. Int J Sci Technol Soc. 2014;2(6):179-185. doi: 10.11648/j.ijsts.20140206.13

    Copy | Download

  • @article{10.11648/j.ijsts.20140206.13,
      author = {Raiwung Park},
      title = {The Estimation of Dynamic Motions of a Constraint Wind Turbine for the Safety- Control with the Indirect Measurement},
      journal = {International Journal of Science, Technology and Society},
      volume = {2},
      number = {6},
      pages = {179-185},
      doi = {10.11648/j.ijsts.20140206.13},
      url = {https://doi.org/10.11648/j.ijsts.20140206.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsts.20140206.13},
      abstract = {This work shows a method to develop a safety control mode according to a wind turbine based on the operating principle of the Darrieus rotor and to estimate a model of a safety control for a wind turbine. It is not easy to timely righteously estimate and evaluate the states. But it is very important for the safe operation in time domain system. The synthesis of this problem presumes that all state variables are observable for the concerned system. But it seems that it is not always feasible to measure all of states directly. A practical way to solve these problems is the estimation of the state variables by the use of the observers which can estimate system characteristics of linear or nonlinear states and effects as a mode, so called, “Indirect measurement”. For this procedure, the mathematical model of the concerned physical system which consists of a vertical standing shaft with two journal bearings at the ends of the rotor is derived with the significant remarks such as friction, gravitation, and Coriolis force. This is a basic system. The concrete assignment is to design the observer that estimates the characteristics of the states and velocities based on the measurement vectors. The main artifice is to approximate the characteristics with a fictitious model that may describe the modes of system errors. As a practical and convenient fictitious model, the characteristics of nonlinear effects are assumed as approximately stepwise contact. An identity observer is obtained whose state variables are the estimate of the state variable of the corresponding “observer system”. It consists of a simulated model with a correction feedback of the estimation},
     year = {2014}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - The Estimation of Dynamic Motions of a Constraint Wind Turbine for the Safety- Control with the Indirect Measurement
    AU  - Raiwung Park
    Y1  - 2014/11/20
    PY  - 2014
    N1  - https://doi.org/10.11648/j.ijsts.20140206.13
    DO  - 10.11648/j.ijsts.20140206.13
    T2  - International Journal of Science, Technology and Society
    JF  - International Journal of Science, Technology and Society
    JO  - International Journal of Science, Technology and Society
    SP  - 179
    EP  - 185
    PB  - Science Publishing Group
    SN  - 2330-7420
    UR  - https://doi.org/10.11648/j.ijsts.20140206.13
    AB  - This work shows a method to develop a safety control mode according to a wind turbine based on the operating principle of the Darrieus rotor and to estimate a model of a safety control for a wind turbine. It is not easy to timely righteously estimate and evaluate the states. But it is very important for the safe operation in time domain system. The synthesis of this problem presumes that all state variables are observable for the concerned system. But it seems that it is not always feasible to measure all of states directly. A practical way to solve these problems is the estimation of the state variables by the use of the observers which can estimate system characteristics of linear or nonlinear states and effects as a mode, so called, “Indirect measurement”. For this procedure, the mathematical model of the concerned physical system which consists of a vertical standing shaft with two journal bearings at the ends of the rotor is derived with the significant remarks such as friction, gravitation, and Coriolis force. This is a basic system. The concrete assignment is to design the observer that estimates the characteristics of the states and velocities based on the measurement vectors. The main artifice is to approximate the characteristics with a fictitious model that may describe the modes of system errors. As a practical and convenient fictitious model, the characteristics of nonlinear effects are assumed as approximately stepwise contact. An identity observer is obtained whose state variables are the estimate of the state variable of the corresponding “observer system”. It consists of a simulated model with a correction feedback of the estimation
    VL  - 2
    IS  - 6
    ER  - 

    Copy | Download

Author Information
  • Dept. of Technology Education, Mechatronics, Sehan University, 526-702, Jeonnam, Korea

  • Sections