Bucharest, October 2019 Automatic voltage control

—Bucharest, October 2019

Automatic voltage control & digital developmentsABB Grids and Power Quality solutions

—

PCC Point of Common Coupling/Connection

PWM Pulse Width Modulation

POD Power Oscillation Damping

PSS Power System Stabilizer

SC Series Capacitor

SC Synchronous Condenser

SIL Surge Impedance Loading

SSR Sub-Synchronous Resonance

STATCOM Static Synchronous Compensator

SVC Static Var Compensator

SVR Syncronous Voltage Reversal

TCR Thyristor Controlled Reactor

TCSC Thyristor Controlled Series Capacitor

TL Transmission Line

TOV Transient Over-Voltage

TRV Transient Recovery Voltage

TSC Thyristor Switched Capacitor

UHV Ultra High Voltage

VSC Voltage Source Converter

WTG Wind Turbine Generator

Abbreviations

AC Alternating Current

DC Direct Current

EAF Electric Arc Furnace

EHV Extra High Voltage

FACTS Flexible Alternative Current Transmission Systems

HV High Voltage

HVDC High Voltage Direct Current

HYBRID STATCOM SVC Classic+STATCOM

kV Kilovolts

LF Ladle Furnace

MMC Modular Multilevel Converter

MOV Metal Oxide Varistor

MSC Mechanically Switched Capacitor

MSR Mechanically Switched Reactor

MV Medium Voltage

MVA Megavolt Ampères (Apparent power)

MVAr Megavolt Ampères Reactive (Reactive power)

MW Megawatt (Active power)

OH Overhead Line

Power quality providerIntroduction1

—The changing power landscapeMany drivers – one common need

Need for good power quality

Increasing energy production

Increasing power consumption

Integration of renewables

Generation Consumers

Distributed generation

Faster and stronger transportation systems

New grids in emerging markets

Changing regulations grid code compliance

Transmission

Reversible power flow

Energy trading between regions

Aging infrastructure

—

Power quality is a quantifiable measure of

how effectively power is utilized and supplied

in terms of its availability, quality and

efficiency.

Good power quality is important along the

whole energy value chain:

Power qualityCaring for the end customers

Generation

Transmission

Distribution

Industrial consumers

Residential consumers

The benefits of good power quality

Energy efficiencySupply network reliability and availability

Lower environmental impact

Increase Industrial productivity

—Dynamic Shunt Compensation (DSC)For grid stability

Increase reliability of supply

Improve industrialproductvity

Integrate morerenewable energy

SVC (Static Var Compensation)

Steady-state and dynamic voltage control of power transmission and distribution systems

STATCOM

Dynamic voltage control of power transmission and distribution systems for power system applications

Hybrid solutions

Easy extension of dynamic range, lower total losses and superior contingency handling

Synchronous Condenser solutions

Standalone or in combination with STATCOMs to improvethe short circuit level and overall power system inertia.

BACK >>

—Series Compensation (SC)For power flow augmentation

Less environmentalimpact

Increased powertransfer

Power oscillation damping (POD)

50%Transfer up to

more power through new and existing power lines

while maintaining or even increasing stability.

Fixed Series Compensation (FSC)

Thyristor Controlled Series Compensation (TCSC)

Controllability for the series compensation

of the transmission line is added through power

electronics.

This gives important benefits in mitigating power

oscillations and other dynamic disturbances.

Withoutcompensation

Withcompensation

Risk of instability

Mean power withcompensation

Mean powerwithout compensationT

ran

sm

itte

dp

ow

er

With FSC

Without FSC

Power X

BACK >>

—Static Frequency Converters (SFC)More power to the railway line

Rail SFC LightMaximum efficiency with proven system behavior

The first IGCT-based multilevel SFC available on the market, expanding the proven PCS 6000 series. Its multilevel topology offers maximum energy efficiency.

The converter’s design results in a modular, robust and safe structure offering optimum availability.

Rail SFC PCS 6000Reliable and efficient grid interconnection

The medium voltage PCS 6000 Rail SFC allows the connection of three-phase local distribution grids to single-phase railway power grids, at 16.7, 25, 50 or 60 Hz.

Highest system availability

Less environmental

impact

Excellent and proven reaction to events in the railway and utility

networks

Enables smart control and test functionalities

High efficiency over entire

power range

Reliable railway interconnections since… 1994

Frequency conversion at

16.7, 2550, 60 Hz

3-phaseNational

grids

1-phaseRailway

grids

SFC

BACK >>

—

The insurance policy for the grid.

Saving the grid from blackouts which can cost as

much as

SVC Classic for Utility

SVC Classic for Industry

Reduce flicker by

Active power increase up to

50-75%25%

The industrial workhorse to increase productivity with reduced energy consumption

$1 Billion per hour

SVC ClassicFor dynamic voltage control


Improved industrialproductivity

Increase reliabilityof supply

—


Improved industrialproductivity

The insurance policy for the grid.

STATCOM for Utility

STATCOM for Industry

Reduce flicker by

Active power increase up to

The industrial workhorse to increase productivity with reduced energy consumption

Saving the grid from blackouts which can cost as

much as

$1 Billion per hour

Increase reliabilityof supply

STATCOMfor dynamic voltage control

25%75-90%

—

SVC Classic- Superior Overvoltage

Performance- Economies of Scale - High Availability - Proven Transmission

Performance

STATCOM- Superior Undervoltage

Performance - Low Harmonic

Emissions- Operation in weak

grids - Speed of response

Hybrid STATCOM- Wide reactive power range - Reduced Footprint- Replace ageing SVCs

Hybrid STATCOMCombining the best of two proven technologies


Integrate morerenewable energy

Increase reliability of supply

—FACTS solutionsA complete portfolio


Series Reactors

Rail Static Frequency Converters (SFC)

Series Compensation (SC)

AC Railway Electrification

Load BalancersThyristor Controlled Series Compensation (TCSC)

Mini Cap

SVC Classic

Hybrids

Synchronous Condenser Systems

Dynamic Shunt Compensation (DSC)

STATCOM

—

Dynamic Shunt Compensation (DSC)

FACTS solutionsA complete portfolio


Series Reactors

Rail Static Frequency Converters (SFC)

SFC PCS 6000Thyristor Controlled Series Compensation (TCSC)

Mini Cap

SVC Classic

Hybrids

Synchronous Condenser Systems

STATCOM

Dynamic Shunt CompensationTopology and principle2

—

Voltage and stability limits may be far below

the thermal (ultimate) capacity of a

transmission line

Reactive compensation is routinely used to

increase operating limits closer to thermal

limits

Reconductoring of lines increases thermal

limits and also increases the reactive needs

Transmission CapacityConsiderations

Thermal limit

New thermal limit

MSC FACTS

Tran

smis

sio

n C

apac

ity

Technology

—Managing the Reactive PowerPower transfer and Voltage control

Generation ConsumptionTransmission/Distribution

Simple equations but several considerations are needed!

—Managing the Reactive PowerPower transfer and Voltage control

Generation ConsumptionTransmission/Distribution

Simple equations but several considerations are needed!

—Shunt CompensationSelection of Topology

STATCOM

Synchronous Condensers

MSC/MSR

Hybrid STATCOM & Hybrid SCs

- Based on mature, well proven technology

- More than 500 ABB installations worldwide

- Thyristor based technology – TSC, TCR and TSR

- Maintenance - mainly standard equipment/components

- Superior over-voltage performance

SVC


STATCOM


MSC/MSR


SVC

- New concept of MMC VSC is state of the art with low harmonic generation

- New multilevel STATCOM concept evolved from Two and Three-level converters

- IGBT and IGCT based MMC technology

- Superior under-voltage performance


STATCOM


MSC/MSR


SVC

- Older, proven technology over the decades

- Resurgence in demand in recent years

- Similar reactive capability to other devices

- Added benefit of inertia and short circuit contribution


STATCOM


MSC/MSR


SVC

- Relatively simple and can be installed at low cost

- Disadvantages:

- Slow response time

- Discharge time for MSCs (several minutes)

- Limited number of switching cycles of CBs

- Mechanically switched reactors (MSR) may create DC offset to the system voltage imposing risk of saturation of CTs and power transformers.


STATCOM


MSC/MSR


SVC

- Combination of the best performance from STATCOM, SVC, and SC

- VSC used for continuous control, TSCs and TSRs for offset

- Asymmetrical dynamic MVAR ranges

—STATCOM technologyComparison of Shunt Compensation Technologies

FACTS

SVC STATCOM STATCOMHybrid

SynchronousCondenser

MSR/MSCMechanically Switched R/C

Availability High High High High High

Losses Low Low Low High Low

Continuous controllability Yes Yes Yes Yes No

Step response 2 cycles < 1 cycle < 1 cycle > 500 ms 4-9 cycles*

Ratio of net. Strength to size 3 1 1.5 N.A >>

Harmonic filters Yes No* No* No No

Footprint X 0.5*X X X 0.4*X

Over Voltage capability Good Less good Good Good Good

Under Voltage capability Less good Good Good Good Less good

Investment (USD/kVAR) 500-100 500-100 500-100 > 150 < 50

O&M Cost Low Low Low High Low

—STATCOM technologySVC vs. STATCOM – VI characteristic

SVC STATCOM Hybrid STATCOM

Hybrid STATCOM - Combination of the best from STATCOM and SVC



















—STATCOM technologyConfigurations available

(a) Classic SVC (b) STATCOM (e) STATCOM HybridVSC / MSC / MSR

(d) STATCOM HybridVSC / MSC / MSR

(c) STATCOM HybridVSC / TSC / TSR

Optimal topology determined by a number of factors


Network Dependence Where is it located electrically?

Robustness What are the requirements for availability and reliability?

Harmonic Generation What are the allowable limits for generated harmonics?

Under/Overvoltage What are the var requirements at specific voltage levels during certain contingencies?

Weak Grids/Resonances How is the grid changing?

Control Features What are the special requirements for control methodologies?


- Hybrid STATCOM, STATCOM and stepped SVCs are less sensitive and dependent on network conditions.

- Harmonic filters in Classic SVCs, is a weak point, as their performance depends entirely on the network harmonic impedance








- In a rapidly changing power system environment, robust design of FACTS devices is a challenge

- Today, harmonic filters in Classic SVCs are optimized to the known grid topology and may be less efficient after a few years’ time –many times requirement for split TCR branches








- Hybrid STATCOM and STACOM based on the multilevel technology have low harmonic generation and thereby reduced number of branches, i.e. harmonic filters of lower order not required








Undervoltage

- At under-voltages, Hybrid STATCOM and STATCOM solutions provides more power than classic SVCs

Overvoltage

- At over-voltages, voltage and current ratings in the VSC converters have to be increased to give the same power as classic SVCs

- Hybrid STATCOM solutions have better performance than pure STATCOM








Weak Grids

- STATCOM and Hybrid Solutions have typically better performance in weak grids as the capacitive filters are replaced by the VSC

- ABB SVCs designed with special control features have been installed in weak grids; Auas, Juna Downs, Ghazalah

Resonances

- Classic SVCs with harmonic filters have to be designed to avoid oscillations close to the fundamental frequency. In weak networks there may be no alternative than split the TSC to smaller units








- Active Filtering

- Negative Sequence Control

- Power Oscillation Damping







—Shunt CompensationSTATCOM working principle

Capacitive operation Capacitive operation

Inductive operation Inductive operation

—

Selection of Multilevel VSC Technology

Shunt CompensationWhy Multilevel STATCOM Technology

Multilevel VSC – Better performance and reduced footprint

- Harmonics and Power Quality - the multilevel converter can deliver a

smoother wave shape (i.e. less harmonics) with a lower switching frequency

per each module.

- Absence of low-order harmonic filters – less sensitive and dependent on

network conditions.

- Reduced footprint – Thanks to simplicity in topology, requiring a minimum of

components, the footprint of an SVC Light installation is small.

- Modularity - Simplicity in topology, enables a high degree of prefabrication

and in-factory testing, leading to an overall reduction of project lead times

and enhanced product quality.

- Losses – Less switching losses, the multilevel concept can use relatively low

switching frequencies to produce a similar switching pattern as a

comparable 2- or 3-level converter

—

Absence of low-order harmonic filters

STATCOM TechnologyWhy Multilevel STATCOM Technology – Harmonics and Power Quality

—Shunt CompensationSingle or Multiple Converters?

STATCOM topology and number of converters to be optimized by supplier

Selection of number of VSC blocks STATCOM with single converter STATCOM with multiple converters

- The number of VSC blocks are:

- Typically determined by network requirements

- VSC block size shall be determined from partial availability requirement for MVARs (if applicable)

- Requirement for partial availability may increase number of stops due to increased number of VSC blocks

- Optimized by supplier

- VSC block size should be optimized on converter current to minimize number of converter cells

- Cost efficient solution

- Same design philosophy as for majority of classic SVCs with TCR topology

- Solution when required MVARs exceeds available single converter rating

- Used for topologies with partially availability requirements

—

State of the Art Control Features for SVC and Hybrid STATCOM

Shunt CompensationControl Feature Development for SVC and Hybrid STATCOM

New control features can be implemented in old existing SVCs to boost their performance

- New control features have been developed and implemented for SVCs

and Hybrid STATCOM during the last decade;

- Fast TSC blocking

- Adaptive gain control

- TSC self diagnosis

- Short circuit power estimate

- Fast TSC blocking and other sophisticated control features such as

TSC self-diagnosis and gain control developed during the last decade

can be implemented in old existing SVCs to boost their performance.

- These control features will not add any stress on the SVC main

components.

- Typically, fast TSC blocking and gain control is very efficient in weak

systems

—

Our solutions3

—

Shunt compensation to control variances in

transmission load is important for grid

stability. Without this safeguard voltage

variations, voltage depression, and even

voltage collapse may occur.

Shunt Compensation provides a tight control

over variable reactive power and thus supports

grid stability.

In addition to increasing power transfer

capabilities by enhancing voltage stability and

maintaining a smooth voltage profile under

different network conditions, Shunt

Compensation can be used in Industry for

improved power quality. ABB offers systems

from a few MVAR to several hundreds of MVAR.

ABB’s modular system reduces on site

construction time to a minimum. Pre-

assembled and tested to the highest

standards, the STATCOM package is ready for

immediate installation.

ABB SolutionsShunt Technologies 1

Portfolio

overview

—








grid stability.













ABB SolutionsShunt Technologies

STATCOM

components

2

—ABB STATCOM PortfolioOverview

425 MVAr

with one single converter

Complete STATCOM portfolio up to

Range and configuration Selection criteria

- The ranges of the different STATCOMs are not rigid, meaning that they might overlap their ”specific ranges”.

- Parallel connection of SVC Light® MP may be used for selected projects as alternative to SVC Light® HP or two PCS6000 in parallel can be an alternative to one ABB SVC Light® MP.

The selection of converter solution should be done related to:

- Capability of fulfilling application requirements in optimal way

- Impact on other subsystems for optimizing the overall system cost, footprint, reliability and losses


—SVC Light®Switching principle

—STATCOM ApplicationConverter topologies

Multilevel Valve Module Concept

- Multilevel cascaded H-bridges, modular design.

- Modular in # of cells:

1 cell = 4 semiconductors (V1 – V4)

- Valve Modules connected in series. Number depends

on required output.

- Distributed dc-link

- The sum of all valve module output voltages form the

terminal voltage

- Low switching frequency

—

1. Power Transformers

2. Voltage Transformer

3. HP-filter (if required)

4. Charging Circuit

5. Phase Reactor

6. Electronic Current Transducer

7. Voltage Source Converter

SVC Light® building blocksSingle Line Diagram

ABB SVC Light ® from ~40 up to ~425 MVA per block

—SVC Light® building blocksPower Transformers





4. Charging Circuit

5. Phase Reactor



—

- Single or three phase power transformer

- The nominal voltage on the MV bus is typically in the range of 15-60 kV irrespective of the primary voltage level

- Wye-Delta vector group

- Large turn ratio

- Typical turn ratio is: 345/25 kV.

- Large turn ratio may result in very high short circuit currents on the MV bus in the range of 50-90 kA (rms, symmetrical).

- Currents in the MV windings and bushings

also become large due to large power and

multiple converters

- Designed without taps since it is the

primary voltage we are trying to control

- Auxiliary winding for stable and reliable

auxiliary power supply

SVC Light® building blocksPower Transformers

—SVC Light® building blocksAC yard and Phase Reactors





4. Charging Circuit

5. Phase Reactor



—

- Air core rector

- Side by side arrangement

- Establishes a difference in potential

between converter output voltage and

transformer secondary voltage.

- Smoothens the converter current and to

increase the connection impedance for the

converter to a suitable level for the control

system

- Limits fault currents

SVC Light® building blocksPhase Reactors

—SVC Light® building blocksCooling System





4. Charging Circuit

5. Phase Reactor



—SVC Light® building blocksCooling System

- Same type of cooling system as for Classical SVCs

- Pump Unit

- Wall-mounted or free-standing

- Redundant pumps

- ABB Ability MACH™ enabled control system: connected to the MACH™ main control

- Heat Exchanger (Cooler)

- Redundant fan(s)

- Most SVC/STATCOM worldwide are designed without redundant heat exchanger

—SVC Light® building blocksControl & Protection





4. Charging Circuit

5. Phase Reactor



—

• Utilized in FACTS & HVDC projects since the late 1990’s

• Parallel operating control systems:

• One “Active”, one “Standby”

• One system can be switched out for maintenance without de-energizing

• Integrated Transient Fault Recorder

• Gateway Station for Interface into grid communications.

• Remote Access Server capability

• Extensive Factory Validation Testing to ensure quick on-site commissioning.

• User friendly HMI

Control & ProtectionABB Ability MACH™ System

—SVC Light® building blocksValves





4. Charging Circuit

5. Phase Reactor



—








grid stability.














3

SVC Light

High Power


—SVC Light® High Power building blocksPower electronics (valves)

SVC Light® High Power (HP): Valve SVC Light® HP: Valve Arrangement IGBT technology

SVC Light High Power - The IGBT MMC valve module; from ~75 up to ~425 MVA

The IGBT SVC Light ® valve module for MMC - Press-Pack technology

- Stable SCFM, superior thermal cycling

- High robustness and reliability

- Best in class power capability

—SVC Light® High PowerConverter Topology

Chain-Link Cell

Pos 1 Pos 2

Pos 3 Pos 4Phase Reactor

VSC Valve

PCU (Position Control Unit)

StakPak IGBT

—SVC Light® High Power building blocksValve structure

—SVC Light® High PowerSystem Integration


Converter valves are connected in a configuration to optimize performances and controllability of the converter

—








grid stability.














SVC Light

Medium Power

4


—SVC Light® Medium Power building blocksPower electronics (valves)

SVC Light® Medium Power (MP): Valve SVC Light ® MP: Valve Arrangement IGBT technology

New ABB SVC Light ® MP valve module from 40 up to ~120 MVA per block

The IGCT MMC valve module- Press-Pack technology

- Stable SCFM, superior thermal cycling- High robustness and reliability

- Best in class power capability

—

MMC cell layout

Submodule design with IGCT and bypass thyristor

- Continued operation after a single component fault is mandatory - this functionality is taken care of by the single thyristor switch

- Identical clamping force requirements of the press pack thyristor and RC-IGCT devices enables a compact integration of all semiconductor devices (RC-IGCT, clamping diodes and thyristor) into one common stack assembly.

- One thyristor for the upper converter cell is placed on the top of the stack and one thyristor for the lower cell is placed at the bottom of the stack.

SVC Light® Medium Power building blocksPower electronics (valves)

—SVC Light® Medium Power building blocksBy-pass behavior

Turn-on bypass thyristor S5 Discharge cell capacitor Sustained bypass operation

Preferred protection action after all kind of failures

Bypass thyristor S5 fails into short-circuit condition caused by capacitor discharge current

Bypass operation after failure when freewheeling diodes divert AC current into shorted bypass thyristor

—SVC Light® Medium Power building blocksABB Products and systems IGCT based

Large interest in further development of IGCT technology

PCS6000 PCS8000 ACS6000ACS5000 and ACS1000SVC Light® MP

- Wind generators

- STATCOM

- Rail SFC

- Pumped Hydro power plant

- PG auxiliaries

- Marine propulsion

- Rolling mills

- Chemical processes

- O&G

- PG auxiliaries

- STATCOM

- Rail Static Frequency Converters

—SVC Light® Medium Power building blocksIGCT development trends

Beside general technology development, ABB optimizes for MMC power application to maximize customer values

Higher temperatures - Higher power

density

Larger area - Higher absolute

power- record device turn-off

power

Integration- Higher power density- Better thermal

utilization

Diode

IGCT IGCT + Diode

Bi-modeGCT (BGCT)

—SVC Light® High PowerSystem Integration


Same integration concept as for SVC Light® HP, just with a different valve module

—








grid stability.














5

PCS6000 for

Low Power


—PCS6000 STATCOM building blocksPower electronics (valves)

PCS6000: Valve PCS6000: Converter IGCT technology

The IGCT PCS6000 converter- Press-Pack technology

- Stable SCFM, superior thermal cycling- High robustness and reliability

- High power density and negative sequence capability

PCS6000 - The IGCT 3-level NPC valve module; up to 40 MVAr

—PCS6000 STATCOMOutdoor installation in IP54 container

Precharger

Transformer precharger

Hp-filter

Water cooling unit

Control cabinet

Auxiliary power cabinet

UPS

—

- Grid connections up to 345 kV

- System size up to 40 MVAR

- > 25 systems in service

- Compact containerized design and special transformer

design enables footprint of only 20*18m

- Low exposure to environmental stress minimizes life-

cycle cost and maintenance

- Very robust solution prevents the need for filters and

provides high immunity to changing grid conditions

- In-rush free grid connection

PCS6000 STATCOMOutdoor installation in IP54 container

—PCS6000 STATCOMHamonic performancetypically allows for a filterless design

—








grid stability.














Synchronous

Condenser Systems

6

—Synchronous CondenserSCS – Synchronous Condenser System

- Consists of a number of parallel

synchronous condensers that are started

with pony motors and synchronized to

the power system.

- Building up a station based on

standardized modules increase

redundancy and reduce lead time to first

possible start.

- Redundancy is build up with n+1 concept

instead of 1+1 large machine.

- Typical module size 50 - 75 MVA

—Synchronous Condenser SystemHigh level single diagram

Components

- Ex = Exciter

- SC = Synchronous Condenser

- PM = Pony Motor

- PL = Pump for lube oil unit

- ML = Motor for lube oil unit

- MC = Motor for fin fan cooler

- PC = Pump for cooling water (should be

revised as below D1)

- MV CB = Medium voltage circuit breaker

- VSD = Frequency converter for pony

motor

—Hybrid Synchronous Condenser General

Hybrid Synchronous Condenser will combine the advantages of Synchronous Condenser

and STATCOM technologies, having an optimized design due to performance and losses.

- The Synchronous Condenser System (SCS) consists of a number of parallel operating

synchronous generators that are started with pony motors and then synchronized to

the power system. Contributes to

- System fault level

- Decreases frequency variations in the area

- Provides slow voltage regulation.

- Low voltage fault ride-through capability.

- Short time overload capacity for 15 to 30 min to prevent voltage collapse.

- STATCOM Contributes to

- Regulation and control of a defined voltage to the required set point.

- Fault ride-through capability.

- Provides fast response reactive power following contingencies.

- Provides dynamic fast response reactive power needed to mitigate voltage

collapse, under- and overvoltage.

- Detecting and damping of active power oscillations.

—Synchronous CondensersSummary

Synchronous condenser features

- Strengthens the network by adding short circuit capacity

- Rotating inertia provides stability to the network

- High thermal over-load capacity

- Very good ride-through capability

Market view

- Reborn interest due to more renewables which lacking:

- Inertia

- Short circuit current

- Network studies can be required

- Turn key solution can be requested

Case Studies4

—Case studyPhoenix Hybrid SynchronousConsdenser

Customer need

Help increase the integration of renewable energy sources in the UK

power grid during shutdown of nuclear and thermal power stations.

The intermittent renewable energy causes power quality issues such

as frequency and voltage regulation support.

ABB’s response

The world’s first Hybrid Synchronous Compensator, which combines

two existing technologies, a Synchronous Condenser (SC) and a

static synchronous compensator (STATCOM). Complementary

technologies that can be deployed together in future power grids to

provide much needed grid stability.

A collaboration project with Scottish Power and academic partners

aiming at developing a new way of addressing the spinning reserve

shortfall

Customer benefits

More stable supply of energy to UK electricity consumers

Estimated benefits of over 900 M$ by year 2035

Customer: Scottish Power, UK

—Case studyBorken Hybrid SVC Light® STATCOM

Customer need

Germany’s energy transition roadmap aims for a renewable energy

target of at least 80% by 2050, This is making the grid weaker due to

the voltage fluctuations caused by intermittent renewable

generation.

ABB’s response

Installation of a Hybrid STATCOM SVC Light® rated +400/-250 Mvar..

Customer benefits

The Hybrid STATCOM will support and stabilize the grid, enabling

wind energy from north Germany to be transported to the heavy load

centers in the south.

Customer: TenneT, Germany

—Case studyEast Anglia ONE SVC Light® STATCOMs

Customer needs

- Help Great Britain’s electricity transmission network to meet the

government’s target for 15 percent of the UK’s energy to be

produced from renewable sources by 2020.

- Grid Code Compliance – Balance the power output from an

offshore windfarm to the network delivering clean, renewable

energy.

ABB’s response

- Two STATCOM SVC Light® +/- 220 Mvar to the 400 kV grid.

- Two special designed Autotransformers with the purpose to

transmit power from the offshore windfarm to the 400 kV Grid.

- The STATCOMs are connected to the tertiary winding of the

Autotransformers

Customer benefits

- Will allow Scottish Power to develop up to 714 MW of clean and

reliable renewable energy that will be delivered to over 500,000

homes in Great Britain.

Customer: Scottish Power, UK

—Case studyKilgallioch Onshore WindfarmPCS6000 STATCOM

Customer needs

Stabilize power supply and facilitate renewables by integrating wind

farm into the national power grid. Meet UK grid code requirements.

ABB’s response

Installation of three containerized STATCOM PCS 6000 units

(including converters in a container, transformers and heat

exchangers). The STATCOMs are the latest upgraded version of the

PCS 6000 with a power rating of 32 – 40 MVA.

Customer benefits

The STATCOM units will ensure full grid code compliance and

dynamic power compensation for the third largest onshore wind

farm in the UK, and will provide more than 600 MVAr to help

strengthen the country’s power grid.

Customer: Scottish Power Renewables, UK

—Case studyOutokumpu SVC Light® STATCOM

Customer needs

Flicker reduction of more than three times, otherwise violation of the National Grid Code (a prerequisite for the operation of the Arc Furnace).

ABB’s response

Installation of a 33 kV SVC Light®, 0/+164 Mvar

Customer benefits

- Flicker reduction of more than four (4) times, twice more than with a conventional SVC

- Improved productivity of the steel manufacturing process

Customer: Outokumpu, FI

—Case studyMagnitorsk Iron & Steel (MMK) Iskenderun SVC

Customer needsNetwork disturbances (flicker) and poor power quality to other neighbouring facilities, emanated from the operation of a very large electric furnace (EAF) and ladle furnace (LF). The EAF, rated at 300 MVA, is among the largest ever installed in a steel plant in the world and has a production capacity of 2,5 million tons of flat-rolled products.

ABB’s responseInstallation of a compensating device, one of the largest Static Var Compensator’s (SVC) for Steel plants in the world, rated at 0/330 Mvar.

Customer benefits- The SVC brings dynamic voltage stabilization, reduces flicker and

mitigates harmonics- Good power quality to the steel plant as well as the neighbouring

facilities- Higher productivity and process economy improved

Customer: MMK, TK

—Case studyMalmberget Ore Mine SVC

Customer needsLKAB is a large iron ore mine located in the Northern part of Sweden Production is based on large, variable-speed mine hoists bringing the ore to the surface. Productivity was limited due to a weak supply grid; only one mine hoist could be started at a time

ABB’s responseAn ABB SVC rated at 0-30 Mvar (capacitive) installed at the 6 kV minehoist bus.

Customer benefits- Stabilization of the 6 kV feeding voltage for various load conditions.- Enabling simultaneous start-up of four mine hoists, against only one

at a time without the SVC- An increased ore yield from the mine by 30%- Improved power supply and power quality

Customer: LKAB, SE

ConclusionFACTS for power quality –Your partner of choice5

—

ABB Grid Integration solutions help to balance the demand created by new electricity consumers entering ports with traditional and renewable power generation by enabling a stronger, smarter and greener port grid.

Patrick FragmanManaging Director,ABB, Power Grid, Grid Integration

Power Quality solution provider

A broad portfolio of SVC, STATCOM, and

Synchronous Condenser technology

unlocks the potential for optimized solutions,

tailored to customer need.

A relentless innovator

The introduction of hybrid solutions breathes

new life into existing, proven technologies.

Always by your side

We support our customers every step of the

way, from proposing the optimal Power

Quality solution to maximizing the value of the

asset during its whole lifecycle.

ABB Power Quality

Macroeconomic trends will drive the power industry toward a new frontier, requiring a unique blend of technology and expertise that makes ABB the ideal choice for power quality solutions.

Andrew OwensGlobal Product ManagerShunt Compensation

Your partner of choice

Documents

Bucharest, October 2019 Automatic voltage control