NADGRADNJA MODELA DVOJNO NAPAJANEGA STROJA V ČRPALNIH HIDROELEKTRARNAH

PEŠL, LEON (author), Ažbe, Valentin (mentor)

Magistrska naloga opisuje poskus poustvarjanja modela črpalne hidroelektrarne (ČHE) z vgrajenim dvojno napajanim indukcijskim strojem (angl. DFM – doubly-fed machine) s spremenljivo hitrostjo vrtenja. V Sloveniji in po svetu se gradi vedno več takšnih elektrarn in njihov vpliv na omrežje nikakor ni zanemarljiv. Zaradi tega je za potrebe dinamičnih analiz nujno potreben ustrezen model, ki bi se dodobra približal realnemu stanju v omrežju. Model, opisan v tem delu je povzet iz tuje literature in prilagojen za programsko okolje PSS®NETOMAC, v katerem smo model izdelali in analizirali. V literaturi je bil model predstavljen zgolj shematično s skopimi opisi, zato smo morali določene elemente prirediti po svoje. V delu se najprej posvečamo izvoru modela in osnovam dvojno napajanih strojev. Nato je predstavljen in opisan prirejen model, primeren za vnos v PSS®NETOMAC. Model smo izdelali in preizkusili na sistemu generator/motor - toga mreža (angl. SMIB – Single-machine infinite-bus). V zadnjem delu so predstavljeni rezultati, kako se model odziva na različne motnje.

• Language: Slovenian
• Keywords: črpalna hidroelektrarna, dvojno napajan stroj, model, PSS®NETOMAC, dinamična analiza
• Work type: Master's thesis/paper
• Organization: FE - Faculty of Electrical Engineering
• Year: 2017
• PID: 20.500.12556/RUL-91827
• Publication date in RUL: 21.04.2017

Secondary language

• Language: English
• Title: UPGRADING OF MODEL OF DOUBLY-FED MACHINE IN PUMP-STORAGE PLANTS

Abstract

This thesis describes development of adjustable speed pumped-storage hydro unit (AS PSH) employing a doubly-fed machine (DFM). Several new units are built in the world and their impact on the electric-power system cannot be neglected. This was the main reason for developing a model appropriate for dynamic analyses. Model used in this thesis is taken from a report prepared by U.S. Department Of Energy. The model is slightly modified in this thesis in a way that can be used in PSS®NETOMAC. First, the thesis covers the origins of the model. Furthermore the thesis includes demonstration and description of the new modified model suitable for PSS®NETOMAC. The modified model was built and tested on a SMIB (Single-machine infinite-bus) system. The last part of the thesis presents the results of the testing with various faults in the system.

• Keywords: pumped-storage hydro plant, doubly-fed machine, simulation model, PSS®NETOMAC, dynamic analyses