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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Reliability of Power Distribution Network
 Polák, Jiří ; Belatka, Martin (referee) ; Špaček, Jaroslav (advisor)
The goal of this thesis is to inform about ways of evaluation of distribution network reliabilities in the states of the European Union and in the Czech Republic and evaluation of reliability of particular distribution network and results of used methods. Therefore, there is at first an introduction to the reliability theory, basic terms and quantities from this field. After the introduction follows the explanation of using and calculating of the reliabilities in the electro-energetics and detailed description of methods used for their calculations. There is also a detailed explanation of the basis of reliability schemes and simulative methods. This part includes the evaluation of the reliability in the Czech Republic from the position of guaranteed standards of the continuousness electric energy delivery and the individual standards are introduced and explained here. The present situation in European Union is being shown in the summary of system and customer standards of electric power supply continuousness used in the specific countries. Distribution network reliability is evaluated with the use of so called box graphs and methods for evaluation of reliabilities by giving the expenditures of probable undelivered energy and expenditures of crossing limit of the total time of interruption penalization. The box graphs method shows evaluation of the whole network and individual areas of the network from the view of number of year interruptions and the total amount of the time of all interruptions. The evaluation of the remaining two expenditure methods includes not only comparison of the whole network, but also comparison of the individual outputs of the network and their arrangement according to the height of expenditures. The comparison of the used method results is made in the thesis conclusion.
Detailed record
Reliability of Power Distribution Network
 Polák, Jiří ; Belatka, Martin (referee) ; Špaček, Jaroslav (advisor)
The goal of this thesis is to inform about ways of evaluation of distribution network reliabilities in the states of the European Union and in the Czech Republic and evaluation of reliability of particular distribution network and results of used methods. Therefore, there is at first an introduction to the reliability theory, basic terms and quantities from this field. After the introduction follows the explanation of using and calculating of the reliabilities in the electro-energetics and detailed description of methods used for their calculations. There is also a detailed explanation of the basis of reliability schemes and simulative methods. This part includes the evaluation of the reliability in the Czech Republic from the position of guaranteed standards of the continuousness electric energy delivery and the individual standards are introduced and explained here. The present situation in European Union is being shown in the summary of system and customer standards of electric power supply continuousness used in the specific countries. Distribution network reliability is evaluated with the use of so called box graphs and methods for evaluation of reliabilities by giving the expenditures of probable undelivered energy and expenditures of crossing limit of the total time of interruption penalization. The box graphs method shows evaluation of the whole network and individual areas of the network from the view of number of year interruptions and the total amount of the time of all interruptions. The evaluation of the remaining two expenditure methods includes not only comparison of the whole network, but also comparison of the individual outputs of the network and their arrangement according to the height of expenditures. The comparison of the used method results is made in the thesis conclusion.
Detailed record

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