Open AccessIMPROVEMENT OF THE METHODOLOGY OF SUBSTANTIATION OF DISTRIBUTION NETWORKS RECONSTRUCTION
Author(s) -
Iryna Trunova,
A. V. Dyshlevskyi,
L. O. Kulish
Publication year - 2020
Publication title -
vestnik nacionalʹnogo tehničeskogo universiteta "hpi". ènergetika: nadežnostʹ i ènergoèffektivnostʹ
Language(s) - English
Resource type - Journals
ISSN - 2224-0349
DOI - 10.20998/2224-0349.2020.01.12
Subject(s) - computer science , overhead (engineering) , duration (music) , block diagram , block (permutation group theory) , work (physics) , risk analysis (engineering) , quality (philosophy) , distribution (mathematics) , data mining , normative , reliability engineering , relation (database) , operations research , management science , engineering , mathematics , mechanical engineering , art , medicine , mathematical analysis , philosophy , geometry , literature , epistemology , electrical engineering , operating system
It is proposed to improve the methodology of substantiation of the distribution networks reconstruction by using a risk-oriented approach. It is substantiated that modern risk management technologies are based on engineering calculations with the use of competencies in financial knowledge and knowledge of quality management standards. The analysis showed that in the substantiation of the reconstruction of the objects of the distribution networks the priority objects are not determined, the estimated number of failures of the objects is not used in the calculations. The work aims is to improve the methodology of substantiation of the reconstruction of distribution networks with the development of a block diagram of the calculation algorithm to determine the priority of reconstruction objects. Methods of analysis of normative and reporting documents of distribution system operators and mathematical modelling of the duration of restoration work after the failure of distribution network facilities were used to solve the aims and tasks of work. The results of the analysis of the consequences of failures of overhead power lines concerning the duration of repairs are given. It is proved that in the conditions of incomplete financing of investment programs, the definition of priority objects of reconstruction is an influential factor for the efficiency of investments. A block diagram of the calculation algorithm has been developed for use in computer programs to determine the priority of reconstruction of distribution network objects after determining objects with critical consequences of failure. It is proposed to use a quantitative assessment of the technical condition of distribution network facilities, standards for labour intensity, and the number of service personnel in the algorithm for determining the priority of reconstruction of overhead power lines and transformer substations. It is concluded that in the conditions of incomplete financing of investment programs, the proposed methodology and block diagram of the algorithm for determining the priority objects of reconstruction of distribution networks can be useful to ensure the most effective work to improve the quality of electricity supply.