UNIV. NEWS. NORTH-CAUCAS. REG. TECHNICAL SCIENCES SERIES. 2015; 3: 50-53
http://dx.doi.org/10.17213/0321-2653-2015-3-50-53
MODELING OF TRANSIENT PROCESSES AND ANALYSIS OF DYNAMIC STABILITY FORREPUBLIC OF TAJIKISTAN POWER SYSTEM
Nadtoka Ivan Ivanovich – Doctor of Technical Sciences, professor, department «Power Supply of Industrial Enterprises and Cities», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia. Ph. (863)22-55-650.E-mail: ii_nadtoka@mail.ru
Vasilliev Pavel Aleksandrovich – Candidate of Technical Sciences, associate professor, department «Power Stations and Electric Power Systems», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia. E-mail: pavas@mail.ru
Makhmaddzhonov Firuz Dodardzhonovich – post-graduate student, department «Power Supply of Industrial Enterprises and Cities», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia. E-mail: firuz_7773@mail.ru
Abstract
Considered the problems of software reliability power supply and stability of the power system of Republic of Tajikistan, related with insulated from neighboring countries operation of modes, whereupon the Northern part of power system is deficient, and Central and Southern parts generate surplus power. By using software «Mustang» modeling of the transition processes during short circuits in transmission lines, which connect these parts of the power system with one another at 220, 500 kV was carried out. Calculations and analysis of the dynamic stability were performed for the winter period of the year, when the greatest energy emergency is observed in the power system. The maximum time of automatic circuit reclosersin substations is investigated as well as the stability of operation of generators at Kairakkym hydroelectric station in emergency modes.
Keywords: power system; modeling; shortcircuit; transition process; dynamic stability; angle rotors
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