Adaptive grid-voltage sensorless control scheme for inverter-based distributed generation / Mohamed, Y.A.-R.I. in IEEE transactions on energy conversion, Vol. 24 N° 3 (Septembre 2009)  

Public ISBD [article]  inIEEE transactions on energy conversion > Vol. 24 N° 3 (Septembre 2009) . - pp. 683 - 694 Titre : Adaptive grid-voltage sensorless control scheme for inverter-based distributed generation Type de document : texte imprimé Auteurs : Mohamed, Y.A.-R.I., Auteur ; Ehab F. El-Saadany, Auteur ; Salama, M.M.A., Auteur Année de publication : 2010 Article en page(s) : pp. 683 - 694 Note générale : Energy Conversion Langues : Anglais (eng) Mots-clés : PWM invertors--Digital control--Low-power electronics--Power control Résumé : This paper presents an adaptive grid-voltage sensorless control scheme for inverter-based distributed generation units based on an adaptive grid-interfacing model. An adaptive grid-interfacing model is proposed to estimate, in real time, the interfacing parameters seen by the inverter and the grid-voltage vector simultaneously. A reliable solution to the present nonlinear estimation problem is presented by combining a grid-voltage estimator with an interfacing parameter estimator in a parallel structure. Both estimators adjust the grid-interfacing model in a manner that minimizes the current error between the grid model and the actual current dynamics, which acts as a reference model. The estimated quantities are utilized within the inner high-bandwidth current control loop and the outer power controller to realize an adaptive grid-voltage sensorless interfacing scheme. Theoretical analysis and simulation results are provided to demonstrate the validity and usefulness of the proposed interfacing scheme. Note de contenu : Bibiogr. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5075661&sortType%3Das [...] [article] Adaptive grid-voltage sensorless control scheme for inverter-based distributed generation [texte imprimé] / Mohamed, Y.A.-R.I., Auteur ; Ehab F. El-Saadany, Auteur ; Salama, M.M.A., Auteur . - 2010 . - pp. 683 - 694. Energy Conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N° 3 (Septembre 2009) . - pp. 683 - 694 Mots-clés : PWM invertors--Digital control--Low-power electronics--Power control Résumé : This paper presents an adaptive grid-voltage sensorless control scheme for inverter-based distributed generation units based on an adaptive grid-interfacing model. An adaptive grid-interfacing model is proposed to estimate, in real time, the interfacing parameters seen by the inverter and the grid-voltage vector simultaneously. A reliable solution to the present nonlinear estimation problem is presented by combining a grid-voltage estimator with an interfacing parameter estimator in a parallel structure. Both estimators adjust the grid-interfacing model in a manner that minimizes the current error between the grid model and the actual current dynamics, which acts as a reference model. The estimated quantities are utilized within the inner high-bandwidth current control loop and the outer power controller to realize an adaptive grid-voltage sensorless interfacing scheme. Theoretical analysis and simulation results are provided to demonstrate the validity and usefulness of the proposed interfacing scheme. Note de contenu : Bibiogr. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5075661&sortType%3Das [...]

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One day ahead prediction of wind speed and direction / El-Fouly, T.H.M. in IEEE transactions on energy conversion, Vol. 23 N°1 (Mars 2008)  

Public ISBD [article]  inIEEE transactions on energy conversion > Vol. 23 N°1 (Mars 2008) . - pp. 191 - 201 Titre : One day ahead prediction of wind speed and direction Type de document : texte imprimé Auteurs : El-Fouly, T.H.M., Auteur ; El-Saadany, E. F., Auteur ; Salama, M.M.A., Auteur Année de publication : 2008 Article en page(s) : pp. 191 - 201 Note générale : Energy conversion Langues : Anglais (eng) Mots-clés : Least squares approximations  time series  wind power Résumé : This paper presents a new technique for predicting wind speed and direction. This technique is based on using a linear time-series-based model relating the predicted interval to its corresponding one- and two-year old data. The accuracy of the model for predicting wind speeds and directions up to 24 h ahead have been investigated using two sets of data recorded during winter and summer season at Madison weather station. Generated results are compared with their corresponding values when using the persistent model. The presented results validate the effectiveness and accuracy of the proposed prediction model for wind speed and direction. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4433186&sortType%3Das [...] [article] One day ahead prediction of wind speed and direction [texte imprimé] / El-Fouly, T.H.M., Auteur ; El-Saadany, E. F., Auteur ; Salama, M.M.A., Auteur . - 2008 . - pp. 191 - 201. Energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 23 N°1 (Mars 2008) . - pp. 191 - 201 Mots-clés : Least squares approximations  time series  wind power Résumé : This paper presents a new technique for predicting wind speed and direction. This technique is based on using a linear time-series-based model relating the predicted interval to its corresponding one- and two-year old data. The accuracy of the model for predicting wind speeds and directions up to 24 h ahead have been investigated using two sets of data recorded during winter and summer season at Madison weather station. Generated results are compared with their corresponding values when using the persistent model. The presented results validate the effectiveness and accuracy of the proposed prediction model for wind speed and direction. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4433186&sortType%3Das [...]

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