Vpliv vetrnih elektrarn na stabilnost elektroenergetskega sistema

GYOEFI, TOMI (author), Mihalič, Rafael (mentor)

V diplomskem delu so, na podlagi literature, analizirane dinamične lastnosti različnih tipov vetrnih elektrarn v elektroenergetskem sistemu. Namen dela je ponuditi pregled generacije vetrne energije, pri katerem je poudarek na vplivu vetrnih elektrarn na stabilnost elektroenergetskega sistema. Podani so osnovni mehanizmi delovanja asinhronskega generatorja, dvojno napajanega asinhronskega generatorja in sinhronskega generatorja s pretvornikom, njihovo tranzientno obratovanje in zmožnost dušenja oscilacij. Predstavljen je tudi stabilizator moči, ki z dodatno regulacijo vpliva na obratovanje elektroenergetskega sistema. Na izbranem modelu omrežja je prikazan vpliv različnih tipov vetrnih elektrarn na tranzientno stabilnost in dušenje elektroenergetskega sistema. Generatorji se različno odzivajo glede na njihovo obremenitev. Vsi so stabilni pri nizkih obremenitvah. Pri visokih obremenitvah pa se asinhrosnki generator in sinhronski generator s pretvornikom izkažeta kot tranzientno n

• Language: Slovenian
• Keywords: vetrna energija, tranzientna stabilnost, napetostna stabilnost, dušenje, asinhronski generator, dvojno napajani asinhronski generator, sinhronski generator s pretvornikom, stabilizator moči, stabilnost elektroenergetskega sistema
• Work type: Undergraduate thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2014
• PID: 20.500.12556/RUL-30059
• Publication date in RUL: 12.12.2014

Secondary language

• Language: English
• Title: Impact of wind generation on power system stability

Abstract

This thesis describes the dynamic characteristcs of different types of wind turbines in the power grid. Its purpose is to offer an overview on wind energy generation with an emphasis on the impact of wind generation on the power system stability. The work describes the basic mechanical principles of fixed-speed induction generators, doubly fed induction generators and fully rated converter wind turbines using synchronous generators, their tranzient performance and damping. Also presented, is the power system stabilazer, which offers additional control on power system performance. The impact of different types of wind turbines on the network tranzient stability and damping is also shown in a generic test network. Generators behave differently based on their capacity. All generators are stable at low capacities. Induction generator and fully rated converter wind turbine using synchronous generator are unstable at high capacities. Power system stabilizer improves the stability of bot

• Keywords: wind energy, tranzient stability, voltage stability, damping, indiction generator, doubly fed induction generator, fully rated converter wind turbine using synchronous generator, power system stabilizer, network stability