| Titre : | Adaptive grid-voltage sensorless control scheme for inverter-based distributed generation (2010) |
| Auteurs : | Mohamed, Y.A.-R.I., Auteur ; Ehab F. El-Saadany, Auteur ; Salama, M.M.A., Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | IEEE transactions on energy conversion (Vol. 24 N° 3, Septembre 2009) |
| Article en page(s) : | pp. 683 - 694 |
| Note générale : | Energy Conversion |
| Langues : | Anglais |
| Tags : | 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%3Dasc_p_Sequence%26filter%3DAND%28p_IS_Number%3A5224009%29 |
