HVDC and FACTS. Flexible Alternative Current Transmission Systems. Modul in Studiengängen Elektrotechnik und Energiewirtschaft

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1 Page No 1 of 16 HVDC and FACTS HVDC FACTS High Voltage Direct Current Flexible Alternative Current Transmission Systems Modul in Studiengängen Elektrotechnik und Energiewirtschaft Zeitraum: SS 2017 Umfang: 3 SWS Form: 2 V Vorlesung 1 Ü Übung, Berechnung, Simulation, Auswertung 00_HVDCandFACTS_Prasentation_2017_01_20.pdf

2 Page No 2 of 16 HVDC = High Voltage Direct Current HVDC Technologies HVDC classic - conventional HVDC systems - Line Commutated Current Source Converter CSC HVDC modern - HVDC light (ABB) - HVDC plus (Siemens) - Self Commutated Voltage Source Converter VSC - Pulse Width Modulation PWM - Multi Modular Level Converter MMC Lit. The ABCs of HVDC Transmission Technology web.pdf

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4 Page No 4 of 16 Grundschaltung HVDC Classic HVDC classic Quelle windenergie_studie02.pdf siehe auch Schwab Elektroenergiesysteme Seite 376

5 Page No 5 of 16 Application: Long Distance Bulk Power Transmission U DC = + / kv, l = 765 km, P DC = 2 * 3150 MW

6 Page No 6 of 16 NEP_2014_2_Entwurf_Uebersichtskarten.pdf

7 Page No 7 of 16 ABB VortragGoerner.pdf

8 Page No 8 of 16 Application of HVDC - submarine cables connecting large wind power sytems - underground cables infeed to cities - asynchronous connection back to back station Advantages - long distance bulk power delivery possible - load flow control by means of power electronics - stability of power distribution Disadvantages - high costs of investment and service - large volume neccessary for the DC station equipment - lower availibility compared to AC transmission - harmonic currents on the AC side - reactors, filters and compensators are required Lit. HVDC Light - Technical Descprition.pdf

9 Page No 9 of 16 FACTS Flexible AC Transmission Systems FACTS are designed in order to optimize the power flow over the transmission systems and to improve the network characteristics with respect to stability, voltage and loop currents. Principles, functions and applications are demonstrated. FACTS components are - Phase Shifting Transformer PST - Thyristor Controlled Reactor TCR - Thyristor Switched Capacitor TSC - Static Var Compensator SVC - Static Synchronous Compensator STATCOM - Unified Power Flow Controller UPFC

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11 Page No 11 of 16 FACTS Flexible Alternating Current Transmissions Systems FACTS components in parallel TSR TSC TCR MSC Thyristor switched Reactor Thyristor Switched Capacitor Thyristor Controlled Reactor Mechanically Switched Capacitor Lit. FACTS Solutions & Case studies

12 Page No 12 of 16 SVC Static Var Compensators TSR TSC TCR MSC Thyristor switched Reactor Thyristor Switched Capacitor Thyristor Controlled Reactor Mechanically Switched Capacitor

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14 Page No 14 of 16 Bild: Compensation process, red line Compensation capacitiy is rising from 0 to 5 F, voltage u2 is increaesed from 0,904 up to 1,0 05_02_u2_von_p2_RL200Ohm_Ckom EXCEL Datei

15 Page No 15 of 16 1,5 1,4 1,3 1,2 1,1 1,0 0,9 1 / U0,8 2 U = 0,7 2 u 0,6 0,5 0,4 0,3 0,2 0,1 00_300km_420kV ,0 0,0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,1 1,2 1,3 1,4 1,5 1,6 1,7 1,8 1,9 2,0 2,1 2,2 p2 = P2/PNat Netz-Last-Kennlinie Nasenkurve und Kompensationskennlinien einer 300km langen 420kV Freileitung

16 Page No 16 of 16 HVDC FACTS High Voltage Direct Current Flexible Alternative Current Transmission Systems Form: 2 V lectures Vorlesung 1 Ü exercises, calculation, simulation, analysis Übung, Berechnung, Simulation, Auswertung Most topics presented in Technical English

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