# Modelling of Distribution System Power Electronics.Pdf Uploaded Successfully

Topics: Alternating current, Electrical engineering, Direct current Pages: 55 (12704 words) Published: May 30, 2011
Modelling of distribution system power electronics devices with respect to their load flow and short circuit behaviour 04-072 pmo 25 may 2004

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04-072 pmo

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04-072 pmo

CONTENTS

1 1.1 1.2 1.3 2 2.1 2.2 2.2.1 2.2.2 3 3.1 3.1.1 3.1.2 3.1.3 3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.3 3.4 3.4.1 3.4.2 3.5 4 4.1 4.2 4.3 4.4 4.5 4.6 5

Introduction ........................................................................................................................... 4 Problem definition ................................................................................................................. 4 Aim ......................................................................................................................................... 4 Method................................................................................................................................... 4 Load flow and short circuit calculations ................................................................................5 Load flows ([1], [2], [3]) ............................................................................................................5 Short circuit............................................................................................................................ 6 Short circuit calculations according to IEC-909 [4],[5] .........................................................7 Sequential fault analysis [4] ....................................................................................................7 Classification of distribution system power electronic devices............................................ 8 Flexible AC transmission systems (FACTS).......................................................................... 8 Series connected controllers ................................................................................................. 9 Shunt connected controllers ................................................................................................12 Combined shunt and series connected controllers............................................................. 15 Custom power devices [10]...................................................................................................16 D-STATCOM ......................................................................................................................... 17 Dynamic Voltage Restorer (DVR)......................................................................................... 17 Solid-State Transfer Switch (SSTS) ......................................................................................18 Solid-Sate Breaker (SSB) [11] ................................................................................................19 Energy storage systems ........................................................................................................19 Devices to control motors and generators ......................................................................... 20 Motor drives......................................................................................................................... 20 Wind turbines generators [17],[18],[36] ................................................................................ 26 Devices for HVDC [19] ..........................................................................................................27 Modeling...