Mehr Spannungsqualität im Netz mit SVC PLUS. Improvement in Voltage Quality for Power Systems with SVC PLUS

Transcription

1 Mehr Spannungsqualität im Netz mit SVC PLUS Improvement in Voltage Quality for Power Systems with SVC PLUS M. Claus D. Retzmann K. Uecker A. Zenkner E T PS SL/Re

2 General Features of VSC* FACTS Grid Access for Wind Farms and Renewables Elimination of Voltage Fluctuations and Flicker High dynamic Performance Low Space Requirements VSC Technology makes it feasible SVC PLUS offers additional Benefits * VSC: Voltage-Sourced Converter E T PS SL/Re

3 SVC PLUS a wide Range of Configuration Possibilities Up to 4 parallel L-Units: +/- 200 MVAr Containerized Solutions: SVC PLUS S: +/- 25 MVAr SVC PLUS M: +/- 35 MVAr SVC PLUS L: +/- 50 MVAr 8 kv 36 kv HV LV Open Rack Solution (Building): SVC PLUS C: +/-100 MVAr SVC PLUS Hybrid (Option): MSR (Mechanically Switched Reactors) MSC (Mechanically Switched Capacitors) SVC PLUS +/ / -200 MVAr MSR MSC E T PS SL/Re

4 SVC PLUS with MMC: a new Member of the FACTS Community Modularity answering every Challenge System Voltage (kv) Reactive Power (MVAr) E T PS SL/Re

5 SVC PLUS A View of the Technology Cooling System Converter Control & Protection E T PS SL/Re

6 SVC PLUS a highly flexible System Low Generation of Harmonics Low Level of HF-Noise Low Switching Losses No Snubbers required Siemens uses MMC Technology (Modular Multilevel Converter) E T PS SL/Re

7 The Evolution of SVC PLUS and VSC Technology Topologies: Two-Level Three-Level Multilevel GTO / IGCT IGBT in PP IGBT Module Power Electronic Devices: E T PS SL/Re

8 SVC PLUS: HMI, local and remote Control Local: WinCC, PC Remote: SCADA Interface External Devices External Devices SVC PLUS E T PS SL/Re

9 SVC PLUS: Converter, Control and Protection E T PS SL/Re

10 SVC PLUS: Advanced Control System SIMATIC TDC Plant Coordination Reference Values Measurements PLUSCONTROL Current Control Converter Coordination E T PS SL/Re GIB on Power Module Capacitor Protection Piloting of IGBT Drivers DC Voltage Measurement

11 Layout SVC PLUS L: +/- 50 MVAr 21 m (69 feet) 25 m (82 feet) E T PS SL/Re

12 Layout SVC PLUS 2 x L: +/- 100 MVAr Dimensions in m E T PS SL/Re

13 Layout SVC PLUS System, maximum Configuration 4 SVC PLUS with 4 external devices E T PS SL/Re

14 Space Requirements Example of +/- 50 MVAr: SVC PLUS L versus SVC Classic Space Saving E T PS SL/Re

15 SVC PLUS: Example of Factory Acceptance Tests Nuremberg, Germany E T PS SL/Re

16 Single Line Diagram of SVC PLUS in Comparison with SVC Classic SVC Classic SVC SVC PLUS Variable Impedance STATCOM = Static Synchronous Compensator with Multilevel Controlled Voltage Source E T PS SL/Re

17 SVC PLUS the Operation Principle VSC AC Equivalent L1 i 1 i 12 L H v conv 12 H Xfmrs, Lines Loads L2 i 2 i 23 L H v conv 23 H VSC = Electronic Generator for Reactive Power Voltage Stabilization L3 i 3 i 31 L H v conv 31 H E T PS SL/Re

18 SVC PLUS Modular Multilevel Converter Power Module 1 Power Module 2 Power Module 3 Power Module 4 Power Module n v conv 12 SVC Voltage v 12 Conv 12 iconv 12 v conv 12 vl E T PS SL/Re

19 SVC PLUS: The Power Module IGBTs Bypass Switch DC Storage Capacitor GIB (Gate-Interface Board) E T PS SL/Re

20 From Power Module to Converter the Multilevel Voltage Generation v v Power Module with DC Capacitor E T PS SL/Re

21 States and Current Paths of a Power Module in the MMC Topology an Advanced Solution Off State Capacitor bypassed ON ON C u DC OFF OFF On State Capacitor charging/discharging ON OFF + V DC C V DC OFF ON E T PS SL/Re

22 Harmonics of SVC PLUS in Comparison with SVC Classic E T PS SL/Re

23 SVC PLUS: V/I Diagram Current Source V prim (pu) 1.5 Jump next Page (SVC Classic ) STATCOM: Current-Source Characteristics continous Operating Area of SVC PLUS time limited Operating Area of SVC PLUS Capacitive Current I prim (pu) Inductive Current E T PS SL/Re

24 SVC Classic : Examples of V/I Diagrams V SVC V SVC 1.8 Voltage Control Mode w/o slope Slope with with slope Slope Reactive Power Control Mode SVC: Impedance Characteristics SVC: Impedance Characteristics I SVC (Q SVC ) I SVC E T PS SL/Re

25 SVC PLUS versus SVC Classic Loss Characteristics SVC PLUS P in % 1,5 SVC Classic 1,0 0,5 0,0-1 -0,5 0 0,5 Q in pu 1 capacitive inductive E T PS SL/Re

26 SVC PLUS Control Features SVC PLUS Standard Control Functions Voltage Control Reactive Power Control Control of up to 4 External Devices SVC PLUS The Control Options Power Oscillation Damping Voltage Unbalance Control Cos φ Control Flicker Control SVC PLUS Internal Controls Adaptive Gain Control DC Control Transformer Overload Control Over & Undervoltage Strategies E T PS SL/Re

27 The Advanced SVC PLUS Solution 8 Systems in 4 Transmission Projects: Rating: Source: UCTE up Interim to +/-Report 200 MVAr Dynamic Voltage Support E T PS SL/Re

28 Grid Access of Green Energy with SVC PLUS: Thanet, UK 2 SVC PLUS Systems for 300 MW Wind Farm 2009 SVC PLUS: 2 x ±35 MVAr in parallel 132 kv / 13.9 kv E T PS SL/Re

29 Grid Access of Green Energy with SVC PLUS: Greater Gabbard, UK 3 SVC PLUS Systems SVC PLUS: 3 x ±50 MVAr in parallel 132 kv / 13.9 kv 2011 World s largest Offshore Wind Farm E T PS SL/Re

30 Power Quality in AC Systems 2 SVC PLUS Systems Kikiwa Project, South Island, New Zealand SVC PLUS: 2 x ±35 MVAr in parallel 220 kv / 11 kv Dynamic Voltage Support during and after AC Line Faults (Voltage Dip Compensation) E T PS SL/Re

31 Power Quality in AC Systems SVC PLUS Mocuba Substation, Nampula, Mozambique 2010 SVC PLUS: ±35 MVAr 33 kv Dynamic Voltage Stabilization Reactive Power Control E T PS SL/Re

32 Power Quality for Industrial Systems SVC PLUS, ThyssenKrupp, Mobile County, Alabama, USA SVC PLUS for new Steel Plant ±100 MVAr Open Rack Solution Flicker Compensation E T PS SL/Re

33 Benefits of Innovations: Siemens uses SVC PLUS Technology also for Traction Supply Converters E T PS SL/Re

34 Intelligent Solutions for Power Transmission with FACTS & HVDC from Now available with VSC PLUS Technology Siemens HVDC PLUS and SVC PLUS and the Lights will keep shining! E T PS SL/Re

35 Intelligent Solutions for Power Transmission Sustainability & Security of Supply Thank You for your Attention! E T PS SL/Re