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Influence of Excitation System＇s Parameters to the Power System Stability

Journal of Energy and Power Engineering 2012年第7期6卷 1146-1152页

作者： Vladimir Chuvychin roman petrichenko Nikolay Gurov Ainars Dambis Faculty of Power and Electrical Engineering Riga Technical University Riga L V-1010 Latvia Department of Transmission System Operator Energy Production and Trade Company "Latvenergo " Riga L V-1230 Latvia

Excitation system is one of the significant elements affecting the dynamic performance of electric power systems. The power engineering as area of science and industry is subjected to rapid modernization, which is caused by technological progress. However, not all elements of the power system are developing simultaneously. The old type of elements sometimes is sufficient to adapt old system to the new operational conditions. The work developed and proposed in this paper deals with analysis of possible optimization of synchronous generator＇s excitation system. Authors examined influence of excitation system＇s parameters to the dynamics of transient processes in the power system. Authors investigated optimal parameters of excitation system of the Kegums hydro power plant. For optimization of parameters objective functions were used. The problem of the mutual influence of excitation systems of neighbor power plants was investigated. Investigation of transient processes using developed model proved that optimization of excitation parameters improves efficiency of regulation of excitation system, damping of active power oscillation and in some cases can prevent out-of-step condition.

关键词： Oscillation damping stabilizer optimization.

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The Application of the Combined Method for Selection of Optimal Excitation Parameters

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Journal of Energy and Power Engineering 2014年第4期8卷 724-728页

作者： roman petrichenko Inga Zicmane Michal Kolcun Matus Novak Faculty of Power and Electrical Engineering Riga Technical University Riga L V-1010 Latvia Department of Power and Electrical Engineering Faculty of Electrical Engineering and Informatics Technical University of Kosice Letna 9 042 00 Slovakia

The quality as well as reliability of electrical energy transmitted to consumers is one of the main parameters of successful operation of the power system. The searching of optimal coefficient＇s combination of PSS （power system stabilizer） is the main goal of this article. The possibility of application of the new combined approach for the optimal excitation＇s settings search is presented. MC （Monte Carlo） method, in order to search and select the optimal combination of excitation system, was applied. The proposed method has been researched with a mathematical model of the power system. This model has been built using Matlab/Simulink software. Paper shows advantages and disadvantages of the proposed methods.

关键词： Power systems stabilizer excitation parameters Monte Carlo method.

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