© ABB HVDC Slide 1

ABB – Technology providers perspective Energidagen – Chalmers Energyinitiative

Mikael Dahlgren, ABB Corporate Research, 02 December 2011

© ABB Group December 7, 2011 | Slide 2

ABB Five global divisions

Power Products

Power Systems

Discrete Automation and Motion

Process Automation

$10 billion

34,500

employees

$6.8 billion

19,100

employees

$5.6 billion

27,200

employees

$7.4 billion

28,400

employees

(2010 revenues)

Low Voltage Products

$4.5 billion

21,300

employees

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’s portfolio covers:

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 CO2 emissions

Electricity generation is the

highest and fastest rising

source of CO2 emissions.

Electricity generation from coal

in India 68% and China 81%

CO2 Emission by Sector

Source: IEA & Berkley National Laboratory

© ABB Group

December 7, 2011 | Slide 4

ABB technology in wind

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

High Voltage

Products

Power Transformers

Low voltage components, motors, drives

switches & breakers MV Transformer

Generator

LV-, MV-

Converter

HVDC Cables

HVAC Cables HVDC platform offshore

HVDC Converter Station

Substations and

Compact

substations

MV Submarine Cables

AC platform offshore

Protection & Control

MV-Switchgear

Control products

MV switchgear

Robotic

paint systems

FACTS, SVC,

STATCOM

Dynamic

Energy Storage

Control

Substation

Everything except wind turbine

© ABB Group

December 7, 2011 | Slide 5

SWPTC – Swedish Wind Power Technology Center

Partner meeting

Board

Director of the Centre

Mech. Power Transmission and

System Optimisation

Power and Control Systems

Turbine and Wind loads

Structure and Foundation

Maintenance and reliability

Bigger project

Project Project Project

Project Project Project

Partner meeting with a project report and ideas for new projects

Board, where project decisions are reached

Theme groups with the theme leaders and the technical steering commitee

Projects: larger, coordinated with several theme groups or smaller individual projects

Management group with managers and theme group leaders

© ABB Group

December 7, 2011 | Slide 6

Theme 1: Power and Control system

Grid code modelling and testing

Modelling of wind turbine electrical components

Advanced control strategies (adaptive, predictive) for wind turbine control

© ABB Group Slide 7 10M0049

Hydro power

Solar power

Wind power

DC transmission

99LFC0825

Wind

300 GW

25 000 km sq

5000 x 10 km

Hydro

200 GW

Europe 20XX Scenario with renewable energy sources ABB’s HVDC grid vision in the 1990’s

Solar

700 GW

8000 km sq

90 x 90 km

Cables (Solar)

140 pairs of

5 GW and

3000 km each

DolWin1 Offshore Wind Power Connector 800 MW, ±320 kV DC

165 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

Customer: transpower

Year of commissioning: 2013

Example of possible HVDC grid in Europe Multi-terminal enabled

NordBalt

South West Link

Possible connection

Nordic and Baltic counties

South West Link

1’st stage: 2 terminals à 2 x 700 MW

2’nd stage: 3 terminals à 2 x 700 MW

NordBalt

1’st stage: 2 terminals à 700 MW

Multi-terminal enabled

Possible 2’nd stage: 3 terminals

à 700 MW

Possible future HVDC Grid

6 terminals: 700 MW à 300 kV

Example of possible HVDC grid in Europe Multi-terminal enabled

UK

Shetland

1’s stage – 3 terminal terminals

1200 MW

Future up to 6 additional stations

600 MW

600 MW

HVDC Hub

switching platform

1200 MW

© ABB HVDC Slide 11

What is an interregional DC grid?

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”.

Regulatory issues such as how to manage such new grids

need to be solved

DC Breaker DC Grid Requirements

Fault clearance

Breaking current

Breaking time

Fault

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

© ABB HVDC Slide 13