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The Application of a TCSC Controller to Improve the Stability of a Power System With High Penetration of Renewable Energy
KTH, School of Electrical Engineering and Computer Science (EECS).
KTH, School of Electrical Engineering and Computer Science (EECS).
2023 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The goal of this project is to examine how a higher penetration of power electronics-basedforms of power production affects system stability and damping. The project covers howpower system stability can be improved by using a Thyristor Controlled Series Capacitor(TCSC) with Power Oscillation Damping (POD). In order to reach these aims, a smallKundur's two-area power system is analysed. A fault is implemented in a system with foursynchronous generators, this is done using the simulation software SIMPOW. By replacingportions of the synchronously generated power with power electronics based generation, theimpacts of renewable energy sources on power system stability can be evaluated. The resultsof the project show that introducing power electronics based generation to a system generallyworsens the stability of said system. Furthermore, it is discovered that the oscillations in thesystem response can be efficiently damped by using a TCSC. On the other hand, when acertain amount of renewable energy is integrated into the system the method used in thisproject is no longer sufficient.

Abstract [sv]

Målet med detta projekt är att undersöka hur en större andel av kraftelektronikbaseradeenergikällor i energiproduktionen påverkar systemstabilitet och dämpning. Projektet omfattarhur ett elkraftsystem kan stabiliseras genom användning av en Thyristor Controlled SeriesCapacitor (TCSC) med Power Oscillation Damping (POD). För att nå dessa mål analyseras ettKundurs två-områdes elkraftsystem. Ett kortslutningsfel implementeras i ett system med fyrasynkrongeneratorer, vilket utförs med hjälp av simuleringsmjukvaran SIMPOW. Genom attersätta delar av synkrongeneratorernas produktion med kraftelektronikbaserad generation, kaninverkan av förnybara energikällor på systemets stabilitet utvärderas. Projektets resultat visaratt integreringen av kraftelektronikbaserad generation generellt sett försämrar systemetsstabilitet. Dessutom upptäcks att systemsvarets oscillationer kan dämpas på ett effektivt sättgenom att använda en TCSC. När en viss nivå av förnybar energi introduceras till systemetvisar det sig däremot att metoden som används i detta projekt inte längre är tillräcklig.

Place, publisher, year, edition, pages
2023. , p. 237-245
Series
TRITA-EECS-EX ; 2023:155
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-341501OAI: oai:DiVA.org:kth-341501DiVA, id: diva2:1821985
Supervisors
Examiners
Projects
Kandidatexjobb i elektroteknik 2023, KTH, StockholmAvailable from: 2023-12-21 Created: 2023-12-21

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CiteExportLink to record
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