Wang Bin & Michael Ho, TIIAE 2011

Power management system

© ABB GroupSeptember 5, 2011 | Slide 2

Content

IntroductionSystem configurationFunctionality ReferenceSummaryLive demonstrationQ & A

© ABB GroupSeptember 5, 2011 | Slide 3

Content

IntroductionDefinition TaskOperational DriversApplication Areas

System configurationFunctionality ReferenceSummaryLive demonstrationQ & A

Terminology

PMS – Power Management SystemLMS – Load Management SystemPDCS – Power Distribution Control SystemENMC – Electrical Network Monitoring & Control SystemECS – Electrical Control SystemELICS – Electrical Integrated Control SystemIPCS – Integrated Protection & Control System

PMS is a control system:To monitor and control electrical switchgear and equipmentTo optimise electricity generation and usage and to prevent major disturbances & plant outages (blackouts)To coodinate power generation & large loads.

Task of Power Management System

Avoiding blackouts in industrial plants!Power SharingLoad Shedding

Critical LoadsLimited In-plant GenerationInsufficient reliability of grid supply

Operational Drivers for PMS

Load Shedding}Several GeneratorsPower Sharing with other plants/grids Power Control}Generator Modes and Operation Transformer Control and Monitoring Circuit Breaker Operation

Object Control}Connection to other plants/grids Bus-Tie operation

Synchronization}

LNGPlants

StorageTerminals

FloatingProduction

Onshore Production

Jobbers

OilDistribution

PowerPlants

ChemicalPlants

O&GTankers

SubseaProduction

Marine

Loading

SalesTerminal

Consumer Mfg

SalesTerminal

SalesTerminal

Drilling

OffshoreProduction

Boosting Station Refineries

Chemical Terminals

Gas Plants

Pipelines & Terminals

Gas Distribution

Lube OilPlants

Primary Distribution ProcessingProduction Secondary Distribution

IndustrialIT PMS

Main Application Areas in O&G Supply Chain

© ABB GroupSeptember 5, 2011 | Slide 8

Content

IntroductionSystem configurationFunctionality ReferenceSummaryLive demonstrationQ & A

PMS System Architecture

© ABB GroupSeptember 5, 2011 | Slide 10

Content

IntroductionSystem configurationFunctionality

Load SheddingTurbine ControlGenerator ControlActive Power & Reactive Power ControlSCADA & IntegrationSynchronization

ReferenceSummaryLive demonstrationQ & A

Load Shedding: The typesFast load sheddingThe fast load shedding function is initiated when the position change of a critical breaker will result in a network where the maximum available power produced is less than the total consumed power. The fast load shedding is essential to the power management system because it acts fast and determines if a trip of a critical breaker will require load shedding.Under-frequency load sheddingThe under-frequency load shedding function is triggered when an input signal from a dedicated underfrequency relay detects that the frequency level has dropped below a predetermined value. The function supports four levels (stages) of under-frequency. The under-frequency load shedding is important because it acts as a secondary (backup) function to the fast load shedding function, in case a trip of a critical breaker is not detected or the actual shed power is not adequate to recover the frequency level.Overload load sheddingThe overload shedding function applies when a network configuration is connected to a grid and power is imported from the grid, as consequence of an imbalance. If the amount of the imported power exceeds a predetermined allowed limit for a time duration which also exceeds a predefined limit, the overload shedding is initiated.

Display Load Shedding SLD (before)

2.2 1.8 1.8 2.13.3

2.50.11.57.25.7

MW MWMW MW

MW

MW

MW

Hz

kV

Generator trip

Display Load Shedding SLD (after)

0.0 1.8 1.8 2.13.3

2.50.11.54.83.9

MW MWMW MW

MW

MW

MW

Hz

kV

Ethernet TCP/IPEthernet TCP/IPEthernet TCP/IPEthernet TCP/IP

Display Load Shedding SLD (after)

0.0 1.8 1.8 2.13.3

2.50.11.54.83.9

MW MWMW MW

MW

MW

MW

Hz

kV

Display Accumulated LoadShed table

Turbine Control

Primary Turbine ControllerDroop or isochronous

PMS provides:Manual control (Droop)Manual MW setpointAutomatic frequency controlAutomatic setpoint control (MW sharing)Automatic mode change:

CB tripTurbine trip etc.

Generator Control

Primary AVR:Droop or voltage control

PMS provides:Manual control (Droop)Manual setpoint control (setpoint is PF)Automatic Voltage Control (AVR receives raise/lower from PMS)Automatic setpoint control (MVar sharing)Automatic mode change:

CB trip

MinimumExcitation

Rotor Instability Line

OperatingMinimum

Turbine Maximum

P

Q-LagQ-Lead

Maximum Excitation(Rotor Heating)

MVA-circle(Stator Heating)

MinimumPF-Leading

MinimumPF-lagging

Capability Diagram

P

Q-LagQ-Lead

Active and Reactive Power ControlIn island operation:

Maintain system frequencyMaintain system voltage

Connected to grid:Control active power exchangeControl re-active power exchange

Share active and reactive power amongst the machines

Participation factorsEfficient Power Generation optimizationSpinning Reserve optimizationStandby optimizationNOx constraints

ObjectivesCoordinated control of power generationAchieve stable operation

Supervision, Control, and Data Acquisition

Clearly Structured PresentationControls - Select Before ExecuteStatus IndicationsTime Tagged Events (1 ms resolution)Alarm handling, Reports, TrendsSupervision and Self DiagnosticsSingle Window conceptInterface with upper-level control system, such as DCS

Measuring of U,I,E, calculation of P & Q

Monitoring & Control

Interlockings

Alarm annunciation

Event Time Tagging

Disturbance Recording

Local storage of trip-events

Integration with Protection & Control Units

Time synchronization

Relay parameterization

Synchronisation

Local Manual Perform on the synchronization panelManually raise/lower using push button Issue close command by using a dedicated close button by mean of watching indication of synchronoscope

Local AutomaticPerform on the synchronization panelPush start synchronization buttonSynchrotact to start generating lower/raise commands in search for synchronism. Once this is achieve, the synchrotact will automatically issue the close command.

Remote Automatic

Synchronisation Panel

© ABB GroupSeptember 5, 2011 | Slide 25

Content

IntroductionFunctionality ReferenceSummaryLive demonstrationQ & A

Named Customer References

ABB delivers Industrial IT solution to the Statoil Hammerfest, Norway LNG Plant

ABB delivers Industrial IT solution to the Sakhalin II LNG Plant, Russia

© ABB GroupSeptember 5, 2011 | Slide 29

Content

IntroductionFunctionality ReferenceSummaryLive demonstrationQ & A

Maintaining a good Power Factor

The total accumulated switched-off shortcurrents by a circuitbreaker or the number of generator starts are a trigger for maintenanceNo need for big oversizing of primary equipment

Power Control, Standby Optimization, n+1 Criteria, SCADA, etc. are performed by the system and not by the operators

The Human Machine Interfaces for all the electrical sub-systems can be integrated in the Energy Management SystemSerial interfaces with protection & control units avoid spaghetti wiring & cable ducts

A B B T r a n s m i t O yN e t w o r k P a r t n e r

FEEDER TERMINAL REF541A B B N e t w o r k P a r t n e r

Uaux = 80 .. .265 Vdc /ac

fn = 50 Hz

In = 1/5 A (I)

1M RS xxxxxx

98 15 0Un = 100 /1 10 V (U)

Uon = 1 00/110 V (Uo)

Ion = 1/5 A (Io)

9 509

Summary: ABB PMS allows you to:

Avoid black-outs (up to 500 kUSD / hour)Power control including voltage control, frequency control, sharing power among generators and tie-line(s).High Speed Contingency Load Shedding (< 100 ms.)

Reduce electricity costsPeak-shavingRe-active Power Control & Sharing

In case of a shortage of electrical power, secure the available power to critical loads by switching off the none important loads according to dynamic load tables

?

Limit electrical import during peak time and reduce peak based charges

Minimize operational costsDecreased number of operatorsEvent driven maintenance

Single Window conceptTransformer Overload Management

In case of a shortage of electrical power, secure the available power to critical loads by switching off the none important loads according to dynamic load tables

?

Optimizing the stability of the operation of the electrical generation- and distribution network of a plant

Minimized cabling and engineeringOptimized network design

Reduce investment costs

Summary: Why ABB PMS?In-depth knowledge of the electrical process20 years experience in PMS implementations across the world(green-field and brown-field plants)Standard software, well documented, tested, proven technologyFast Response Time for: Load Shedding, Mode Control, Power Control, Re-accelerationHigh Resolution and Accuracy of Sequence of Event recordingComply to class 3 EMC immunity Single responsibility: One supplier for PMS integrated with switchgear, protection, governor, excitation, transformer, tap changer, Motor Control Centre, Variable Speed Drive, etc.Experience with EPC’s like: CB&I, Bechtel, Chiyoda, Fluor Daniel, Foster Wheeler, JGC, Kellogg, Larson & Tubro, Mitsubisi, Snamprogetti, Technip, Toyo, Toshiba, Hyundai, etc.

Live Demonstration

Q&A

Local Contact:

Michael Ho Email: michael.ho@tw.abb.comPhone: +886 2 87516090 #343Mobile: 0937-010658

Regional PMS Centre:

Wang BinEmail: bin.wang@sg.abb.comPhone: +65 6773 8874Mobile: +65 98367539