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- Farid Khaber, Abdelaziz Hamzaoui, K. Zehar, Najib Essounbouli
- Int. J. Systems Science
- 2006

This paper reports on an evolutionary algorithm based method for solving the economic load dispatch (ELD) problem. The objective is to minimize the nonlinear function, which is the total fuel cost of thermal generating units, subject to the usual constraints. The IEEE 30 bus test system was used for testing and validation purposes. The results obtained… (More)

- A. BAYADI, N. HARID, K. ZEHAR, S. BELKHIAT, Ferhat Abbas
- 2003

– Data on characteristics of metal-oxide surge arresters indicates that for fast front surges, those with rise times less than 8µs, the peak of the voltage wave occurs before the peak of the current wave and the residual voltage across the arrester increases as the time to crest of the arrester discharge current decreases. Several models have been proposed… (More)

The main aim of this paper is to present an improved method to solve load flow problem in balanced radial distribution systems with laterals. The method is efficient and easy to implement. Based on electric circuit laws, this method is iterative and allows the evaluation of both, voltage (rms) values and phase-angles. The phase-angles although of small… (More)

In this paper, we introduce a robust state feedback controller design using Linear Matrix Inequalities (LMIs) and guaranteed cost approach for Takagi-Sugeno fuzzy systems. The purpose on this work is to establish a systematic method to design controllers for a class of uncertain linear and non linear systems. Our approach utilizes a certain type of fuzzy… (More)

This paper presents a solution of the economic load dispatch (ELD) problem with security constraints of power systems, using an iterative technique based on the linear programming method, called " Successive Linear Programming " (SLP). The objective is to minimize the nonlinear function which is the total fuel cost of thermal generating units, while taking… (More)

- M N Harmas, Merzougui, A Ferhat-Hamida, K Zehar
- 2005

Stable power systems in adverse operating conditions remain a constant quest of power companies and clients alike. Installed capacities are being used to their utmost levels and longer transmission lines to disserve remote areas are heavily relied upon in effort to avoid costly new installations. These reasons and the apparition of low frequency local and… (More)

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