Obnavljanje pogona distributivnih sistema u okviru razvoja inteligentnih elektroenergetskih mreža

Abstract

Prilikom rešavanja problema obnavljanja pogona distributivnih sistema u postojećoj literaturi su uglavnom upotrebljavane ili modifikovane već poznate metode rešavanja problema iz drugih oblasti elektroenergetike. U radu je prezentovan pregled i opis postojećih načina rešavanja obnavljanja pogona U ovoj disertaciji je razvijen i verifikovan novi način rešavanja problema obnavljanja pogona. U disertaciji se razmatra problem obnavljanja pogona distributivnih sistema i u svetlu aktuelnih i globalnih napora kojim bi se postojeće elektroenergetske mreže transformisale u inteligentne elektroenergetske mreže. Iako postoji određeni broj konvencionalnih metoda i načina rešavanja obnavljanja pogona u distributivnim sistemima ipak novi koncept inteligentnih mreža zahteva usavršavanje postojećih kao i pronalaženje novih načina rešavanja ovog problema. Efikasno rešavanje obnavljanja pogona distributivnih sistema se u predloženoj temi ostvaruje pomoću algoritma koji je zasnovan na Primovom algoritmu, odnosno njegovoj modifikaciji. Primov algoritam, uključujući navedenu modifikaciju, je matematički detaljno opisan a zatim je primenljivost modifikovanog algoritma na rešavanje obnavljanja pogona distributivnih sistema sveobuhvatno analizirana. Iz toga proističe novi način rešavanja obnavljanja pogona distributivnih sistema koji se efikasno uklapa u širi koncept inteligentne mreže. Novi način rešavanja obnavljanja pogona je sastavni deo kompletno razvijenog algoritmom koji uključuje i proračune tokova snaga, rasterećenje preopterećenih elemenata prilikom rešavanja obnavljanja pogona kao i generisanje potrebnih prekidačkih akcija. Na kraju je razvijeni algoritam testiran na modelu složene distributivne mreže...

Methods and approaches for the solving of the service restoration problem in the existing literature are based on well known methods that are also used for the solving of other problems in electrical power systems. Review of the methods and approaches is presented in this dissertation. New approach for the solving of the service restoration in distribution systems is developed and verified in this dissertation. The relation between the service restoration problem and transformation of conventional electrical power networks into smart grid are addressed in the dissertation. Although there is a number of known methodologies and approaches for solving the service restoration of the distribution power systems, an improvement of existing methodologies and approaches or research for new ones in order to accommodate the smart grid requirements are required. An effective service restoration approach proposed in the dissertation is based on modified Prim’s algorithm. Prim’s algorithm including its modification is mathematically described in details followed by comprehensive analysis of the modified Prim’s algorithm implementation to the solving of the service restoration. The new approach for the solving of the service restoration problem in distribution networks that can be incorporated into smart grid concept is derived from the analysis. Proposed new approach for the solving of the service restoration problem is incorporated in the developed algorithm. The algorithm also contains other typical distribution power system analysis tools such as load flow, load transfer from elements that are overloaded during the service restoration calculations, and the filtering of the required switching actions. The developed algorithm is tested on the complex model of the distribution network...