Mikael Dahlgren, ABB Corporate Research, 02 December 2011 ABB Technology providers perspective Energidagen Chalmers Energyinitiative

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1 Mikael Dahlgren, ABB Corporate Research, 02 December 2011 ABB Technology providers perspective Energidagen Chalmers Energyinitiative ABB HVDC Slide 1

2 ABB Five global divisions Power Products Power Systems Discrete Automation and Motion Low Voltage Products Process Automation $10 billion 34,500 employees $6.8 billion 19,100 employees $5.6 billion 27,200 employees $4.5 billion 21,300 employees $7.4 billion 28,400 employees (2010 revenues) ABB s portfolio covers: Electricals, automation, controls and instrumentation for power generation and industrial processes Power transmission Distribution solutions Low-voltage products Motors and drives Intelligent building systems Robots and robot systems Services to improve customers productivity and reliability ABB Group December 7, 2011 Slide 2

3 Electrical system is facing significant challenges Regulation key in promoting adoption Increasing demand Electricity consumption growing at twice the rate of overall energy. Highest growth rate in India (280%) and China (190%) Increased reliability As economies digitize, the cost of non-performance of electrical system is increasing. >70% of problems occur in distribution part. Reduced CO 2 emissions Electricity generation is the highest and fastest rising source of CO 2 emissions. Electricity generation from coal in India 68% and China 81% CO2 Emission by Sector Source: IEA & Berkley National Laboratory

4 ABB technology in wind Everything except wind turbine HVDC platform offshore HVAC Cables MV Submarine Cables LV-, MV- Converter Generator Control HVDC Cables Low voltage components, motors, drives MV Transformer switches & breakers AC platform offshore High Voltage Products FACTS, SVC, Dynamic Energy Storage Protection & Control Substation HVDC Converter Station Power Transformers Robotic paint systems MV-Switchgear STATCOM Control products MV switchgear Substations and Compact substations ABB offers broad range of products on electrical systems contributing to wind industry: from components inside wind turbines right up to the power transmission and distribution systems of the wind power plant ABB Group December 7, 2011 Slide 4

5 SWPTC Swedish Wind Power Technology Center Partner meeting Partner meeting with a project report and ideas for new projects Board Board, where project decisions are reached Director of the Centre Management group with managers and theme group leaders Power and Control Systems Turbine and Wind loads Mech. Power Transmission and System Optimisation Structure and Foundation Maintenance and reliability Theme groups with the theme leaders and the technical steering commitee Project Project Project Bigger project Project Project Project Projects: larger, coordinated with several theme groups or smaller individual projects ABB Group December 7, 2011 Slide 5

6 Theme 1: Power and Control system Modelling of wind turbine electrical components Grid code modelling and testing Advanced control strategies (adaptive, predictive) for wind turbine control ABB Group December 7, 2011 Slide 6

7 Europe 20XX Scenario with renewable energy sources ABB s HVDC grid vision in the 1990 s 99LFC0825 Hydro 200 GW Hydro power Solar power Wind power DC transmission Wind 300 GW km sq 5000 x 10 km Cables (Solar) 140 pairs of 5 GW and 3000 km each Solar 700 GW 8000 km sq 90 x 90 km ABB Group Slide 7 10M0049

8 DolWin1 Offshore Wind Power Connector 800 MW, ±320 kv DC Customer: transpower Year of commissioning: km long subsea and underground power connection to offshore wind farm Robust grid connection Turnkey 800 MW HVDC Light system First ± 320 kv extruded cable delivery

9 Example of possible HVDC grid in Europe Multi-terminal enabled Nordic and Baltic counties South West Link South West Link 1 st stage: 2 terminals à 2 x 700 MW 2 nd stage: 3 terminals à 2 x 700 MW NordBalt NordBalt 1 st stage: 2 terminals à 700 MW Multi-terminal enabled Possible connection Possible 2 nd stage: 3 terminals à 700 MW Possible future HVDC Grid 6 terminals: 700 MW à 300 kv

10 Example of possible HVDC grid in Europe Multi-terminal enabled UK Shetland 600 MW 600 MW HVDC Hub switching platform 1 s stage 3 terminal terminals 1200 MW Future up to 6 additional stations 1200 MW

11 What is an interregional DC grid? Regulatory issues such as how to manage such new grids need to be solved An interregional HVDC grid is defined as a system that needs several protection zones for DC earth faults, has the same voltage level and very high power rating New developments needed, e.g.: HVDC breakers and fast protections Grid Power flow control Long-term development, e.g. High voltage DC/DC converters for connecting different regional systems On-going Cigré WG B4.52 HVDC Grid Feasibility study. ABB HVDC Slide 11

12 DC Breaker DC Grid Requirements Breaking time Breaking current Fault Fault clearance VSC DC Yard Low surge impedance of cable based DC grids results in fast and deep fault penetration Fast isolation of faulted parts keeps DC voltage at reasonable levels to maintain operation of converter stations Fast DC Breakers with breaking times in ms range required to avoid voltage collapse in DC grid

13 ABB HVDC Slide 13