Volume 2, Issue 1, June 2018, Page: 36-49
Synthesis of a Digital Corrector for Frequency Control in Hydroelectric Power Plants
Korassaï, Faculty of Science, University of Ngaoundere, Ngaoundere, Cameroon
Yeremou Tamtsia Aurelien, Faculty of Industrial Engineering, University of Douala, Douala, Cameroon
Haman-Djalo, Faculty of Science, University of Ngaoundere, Ngaoundere, Cameroon
Samba Aimé Hervé, Faculty of Industrial Engineering, University of Douala, Douala, Cameroon
Ngaleu Gildas Martial, Faculty of Industrial Engineering, University of Douala, Douala, Cameroon
Received: Nov. 26, 2018;       Accepted: Dec. 17, 2018;       Published: Jan. 22, 2019
DOI: 10.11648/j.cse.20180201.14      View  310      Downloads  35
Abstract
The safety and reliability of an electricity grid is defined by the quality of the power supplied to consumers. One of the important criteria for the stability of electrical networks is the frequency of the voltage produced. The aim of this paper is to develop digital corrector applied to the speed control system correcting on turbines to resolve the frequency variations problems in the output of the alternator caused by the imbalance between the active power produced by the turbo-generator and the power required by the load connected to the grid in the hydroelectric plants. First, a modeling of the turbine, the servo valve - servomotor assembly, the valve - flow function, the power chain as well as the alternator of the power station is presented. Then, three controllers (Proportional–Integral–Derivative, Internal Model Control and Robust Structure Theory) are studied, simulated and their performances were tested and compared in terms of instruction tracking and robustness. The simulations were realized by MATLAB/Simulink software. For the hydroelectric power plant studied, the RST controller has the best performance.
Keywords
Turbo-Generator Group, Corrector, Frequency, Electrical Network, Regulation, Hydroelectric Plants
To cite this article
Korassaï, Yeremou Tamtsia Aurelien, Haman-Djalo, Samba Aimé Hervé, Ngaleu Gildas Martial, Synthesis of a Digital Corrector for Frequency Control in Hydroelectric Power Plants, Control Science and Engineering. Vol. 2, No. 1, 2018, pp. 36-49. doi: 10.11648/j.cse.20180201.14
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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