Power System HVDC Applications

Transcription

1 20 years Itaipu / 50 years HVDC anniversary John Graham ABB Brazil Power System HVDC Applications 2002 ABB Utilities - 1

2 What are the applications for HVDC in power systems? Long Distance Overhead Line / Cable Asynchronous, including frequency conversion Controllability, Steady State and Dynamic No Short Circuit Contribution Reduction in System Losses HVDC Technology HVDC Classic The CCC Concept HVDC Light HVDC in System Planning Worldwide examples Prospects in Brazil

3 China : Long Distance Overhead Line, plus Back to Back Thermal Base 2500MW 3000MW 1800MW 7200MW Hydro Power Base 10000MW 9000MW 2000MW 3000MW AC DC 2005 年区域网络互连

4 China : Long Distance Overhead Line, plus Back to Back Thermal Base 2500MW 3000MW 1800MW 7200MW Hydro Power Base 10000MW 9000MW 2000MW 3000MW Possible International connection AC DC 2010 年区域网络互连

5 Índia : Long Distance Overhead Line, plus Back to Back Back to Back 1 Sasaram 500 MW 2 Vindhyachal 500 MW 3 Chandrapur 1000 MW 4 Visag 500 MW Transmission 1 Rihand-Delhi 1500 MW 2 Chapad 1500 MW 3 Talcher 2000 MW (proposed) 3 HVDC Interconnections in India

6 North America : Long Distance Overhead Line, plus Back to Back North American HVDC Interconnections Back-to-Back HVDC Tie Back-to-Back used between synchronous areas HVDC Line HVDC lines generally used within synchronous areas

7 What are the applications for HVDC in Brasil? Three types of large network Three typical problems to solve 1. Strong High Short Circuit Level 2. Weak Electromechanical / Voltage Stability 3. Meshed Power Flow Control HVDC Solves all above problems

8 Not Only Long Distance Overhead Line 1000 km Strong : Short Circuit Level Weak : Stability Meshed : Power Flow

9 TIJUCO PRETO C. PAULISTA ADRIANÓPOLIS ADRIANÓPOLIS ITUTINGA Strong : Short Circuit Level TAUBATÉ SÃO JOSÉ Weak JACAREPAGUÁ CAMPOS : Stability Meshed : Power Flow ADRIANÓPOLIS ANGRA NA NA ALCÂNTRA S. PONTES ROCHA LEÃO MACABU I. POMBOS SÃO JOSÉ MAGÉ GRAJAÚ ROCHA LEÃO CAMPOS UTEC UTEC VOLTA REDONDA FONTES CASCADURA 1 TRIAGEM CORDOVIL ROCHA LEÃO (CERJ) ONS Study : Area Rio GRAJAÚ FREI CANECA LEGEND: 500 kv ANGRA CASCADURA 2 QUEIMADOS JACAREPAGUÁ SANTA CRUZ T. SUL 345 kv 138 kv 69 kv

10 Cross Sound 330 MW HVDC Light project HVDC Technology HVDC Light

11 Long distance and Meshed 1000 km Strong : Short Circuit Level Weak : Stability Meshed : Power Flow

12 Venezuela 200 MW ONS Present Power Flows Future large hydro plants Future CCGT

13 9110 / 2998 MVA Itaipu Foz do Iguazo Ivaipora Curitiba RSM Itá 6889 / 3683 MVA Garabi 50 Hz 60 Hz 3173 MVA 1622 MVA 2075 MVA 1346 MVA Porto Alegre HVDC Classic : The CCC Concept

14 Colombia-Panama 300 MW Peru-Ecuador 125 MW North South East 3000 MW Peru-Bolivia 200 MW SIC-SING 600 MW Bolivia Brasil 2000 MW Garabi III 550 MW Chile-Argentina 500 MW Uruguay-Brasil 500 MW Challenge to Integrate Long Distance Interconnections

15 Challenge to Integrate Long Distance Interconnections 1000 km Future large hydro plants Future CCGT

16 Furnas, Itaipu Experience, 1983

17 Furnas, Itaipu Experience, 1983

18 Planned Generation in North (close to Tucuruí) Estreito 1087 MW Serra Quebrada 1328 MW Marabá 2160 MW Belo Monte 5000 MW São Salvador 241 MW Tupuritins 820 MW Ipueiras 600 MW Integration of Hydro Plants with HVDC / EHVAC Interconnections Future CCGT

19 Itaipu 6300 MW 3 EHVAC Lines 765 kvac About 70% Guyed Vee Average weight 8500 kg 2 HVDC Lines ± 600 kvdc About 80% Guyed Mast Average weight 5000 kg Reduced Right of Way Environmental Benefit HVDC Technology HVDC Classic

20 Large 500 kvac Station 3000 MW HVDC Rating Converter part relatively small One converter per pole Single phase two winding trafos Simple passive filter design Metallic Return Electrode Balancing Fast time to operation 3 GC 36 months pole 1 48 months pole 2 3 GG 28 months pole 1 36 months pole 2 HVDC Technology HVDC Classic

21 Foz do Iguaçu Converter Station

22 Three Gorges - Changzhou HVDC Transmission Project MVAr 140 HP11/ MW HP12/24 MVAr HP24/36 HP3 Y 0 Y kv DC-line Y Y 0 SH SH HP11/13 HP24/36 Y 0 Electrode line Y 0 HP12/24 SH HP3 Y 0 Y 0 HP12/ HP11/13 HP24/36 Y 0 Y DC-line -500 kv Y Y 0 HP12/24 SH HP12/ Longquan Zhengping HVDC Technology HVDC Classic

23 What are the applications for HVDC in Brasil? Three types of large network Three typical problems to solve 1. Strong High Short Circuit Level 2. Weak Electromechanical / Voltage Stability 3. Meshed Power Flow Control HVDC Solves all above problems How? Controllability

24 Challenge to Integrate Long Distance Interconnections Wind Power 1000 MW 1000 km Future CCGT

25