Flexible AC Transmission Systems (FACTS) have the ability of voltage supportand increase transmission capacity. In order to specify a FACTS devicethat is performing according to expectations in a network, a set of studiesand network analyses must be performed. Part of these studies are done usingpower system analysis programs such as PSS®E, which is a planning toolsimulating large power systems in phasor domain using RMS values. Theseplanning tools are used for evaluating stability and reinforcement needs ina power system. The results play a vital role in investment decisions inthe power system. FACTS devices are modeled in PSS®E using a programminglanguage called FORTRAN. It is important to model FACTS devicesaccurately to avoid misleading results. In this Master thesis, STATCOMand Hybrid-STATCOM models are proposed and programmed accordingto ABB’s control strategy. The models are tested in PSS®E and verifiedagainst detailed models in PSCAD. Also, the models are compared againstother industry wide spread generic models. / System inom produktgruppen FACTS (Flexible AC Transmission Systems)har m¨ojligheten att st¨odja sp¨anning och h¨oja ¨overf¨oringskapacitet p°a existerandeledningar. F¨or att kunna specificera en FACTS-anl¨aggning sombeter sig som f¨orv¨antat i ett eln¨at beh¨ovs ett antal studier och n¨atanalyserutf¨oras. Delar av dessa studier ¨ar gjorda genom att anv¨anda verktyg f¨orkraftsystemanalys som t.ex. PSS®E, som ¨ar ett verktyg f¨or n¨atplaneringd¨ar fasvektorer och RMS-v¨arden anv¨ands i ber¨akningarna. Dessa verktyganv¨ands f¨or att evaluera stabilitet och utbyggnadsbehov i eln¨atet. Resultatenfr°an verktygen spelar en vital roll i investeringsbeslut i ett eln¨at.FACTS-system modelleras i PSS®E med hj¨alp av programmeringsspr°aketFORTRAN. Det ¨ar viktigt att anv¨anda korrekta modeller f¨or att undvikamissledande resultat. I denna Master-uppsats f¨oresl°as och utvecklasSTATCOM och Hybrid-STATCOM modeller i enlighet med ABBs kontrollstrategi.Modellerna testas i PSS®E och verifieras mot detaljerade modelleri PSCAD. Modellerna j¨amf¨ors ¨aven mot andra generiska modeller som ¨araccepterade och spridda ¨over branschen i stort.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:kth-217118 |
| Date | January 2017 |
| Creators | Mikwar, Abulaziz |
| Publisher | KTH, Elkraftteknik |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | Swedish |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | TRITA-EE, 1653-5146 ; 2017:150 |
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