e-terraphasorpoint 3.0 - Alstom

e-terraphasorpoint 3.0
Integrated Phasor Solutions
for Advanced Energy Management
GRID

e-terraphasorpoint 3.0
The new e-terra3.0 is the most advanced, fully integrated, smart grid-ready suite of
products for the 21 st Century Grid. e-terra3.0 is developed by the world’s leader of energy
management and electricity market systems and THE only player in the industry who offers a
full solution from market-to-meter for the new grid. Your Grid. Reinvented.
Stable and Efficient Power Systems
Transmission operators must maintain stable
operation of the power system and increase
the use of assets, while aging infrastructure
and a changing generation profile introduce
new challenges. e-terraphasorpoint 3.0 can
bring great insight, reducing costs through
more effective use of power system capacity,
and safeguarding its stability. This flexible,
scalable and extensible phasor-based Wide Area
Management System (WAMS) is integrated
with the e-terraplatform solutions for Energy
Management Systems (EMS), in order to:
●● Transform phasor data into actionable
information to improve system security
and capacity
●● Coordinate WAMS and EMS to provide a
unified view of the power system, enhancing
operator and analyst decision-making
●● Enable strategic development of control
center systems with the critical involvement
of phasor-based information sources
Grid performance can be managed
with e-terraphasorpoint 3.0 through
●● Improving power system security
●● Transfer constraint relief
●● Power system dynamics risk assessment
●● Dynamic model validation
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●● Tuning of power system stabilisers
●● Managing islanded situations and
resynchronisation
Uniquely, e-terraphasorpoint 3.0 is able to
leverage the synergies between WAMS, EMS
and Dynamic Security Assessment (DSA)
for improving power system performance in
many growing aspects of operations, analysis,
modelling and control.

Benefits
Enhanced security. e-terraphasorpoint 3.0
provides state of the art solutions for managing
the risks of blackouts while not over-constraining
the grid. Dynamic threats such as oscillations,
separation and major disturbances can be
observed and managed.
Situational Awareness & Operational Response.
e-terraphasorpoint 3.0 alerts an operator to an
emerging problem for defined corrective action
to be taken. Combined with e-terravision, a
unified global overview of threats from diverse
sources is presented.
Alarm Management. e-terraphasorpoint
3.0 communicates wide area alarms to the
e-terraplatform. Presentation and visualization
of alarms in the e-terraplatform and easy
navigation to the relevant diagnostic information
improves management of emergency situations.
Constraint Relaxation. e-terraphasorpoint
3.0 has a proven track record for relieving
constraints based on oscillation damping. It
can also be used for other forms of constraint
relief including angle-based limits.
Model validation. Improving dynamic models
using phasor measurements and continuous
observation of oscillations leads to better design
of stability controls and potentially enables
constraint relief.
Connection of Renewable Energy. The capability
of the network to accommodate intermittent
renewable resources can be increased through
the use of angle-based controls. Stability issues
such as frequency stability, common-mode
disturbance and model validation can also
be addressed.
Compliance Monitoring. Retain information to
comply with regulatory disturbance reporting
requirements. Also, records can be used for
generator compliance to grid connection
requirements, potentially reducing compliance
testing effort.
Integrated WAMS/EMS. Reduced burden of
effort and on-going cost for administering an
integrated WAMS/EMS system compared with
running separate systems.
Customer Benefits
●● Mitigate risk of major
disturbance
●● Relieve transmission constraints
●● Improve dynamic models
●● Fulfill regulatory reporting
requirements
●● Improve emergency response
●● Scalable – grow to the largest
foreseeable systems
●● Extensible – add new
applications when required
●● Flexible – tools to configure
and implement your own
applications
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WAMS/EMS/DSA Synergies
State Estimation. Improved State Estimation
leads to more reliable and accurate results for
the network security applications that depend
on the results. e-terraphasorpoint 3.0 provides
phasor data to the EMS for State Estimation.
Situational Awareness for Oscillations.
e-terraphasorpoint 3.0 oscillation damping,
geographic information and alarms can be
presented in e-terravision, together with
simulation-based analysis and any other
significant alarms. The user can associate
oscillation problems with other disturbed
network conditions.
General WAMS Alarm Presentation.
e-terraphasorpoint 3.0 can generate highlevel
warnings of wide-area system conditions
of concern. It provides a great deal of flexibility
to create system-wide alarms, supplementing
more conventional EMS alarms that are difficult
to interpret under critical conditions leading
to “alarm floods”. These high-level warnings
are presented in the e-terraplatform, drawing
the operators’ attention to a system issue, and
e-terraphasorpoint 3.0 can then be used to
identify the source of the issue.
.
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Features
e-terraphasorpoint 3.0 comprises the latest
version of the world leading Psymetrix PhasorPoint
WAMS solutions with advanced integration to
e-terra and other systems.
The solutions provide an advanced phasor
framework for:
●● Data Management – PDC’s and historians
for fast and slow scan archiving
●● Analysis Tools and Applications – advanced
analytics and transformations to actionable
information
●● Visualization – clear presentation using
alarm dashboard, multi-tiered views and
drill-down
e-terraphasorpoint 3.0 has a set of core
standard applications and interfaces with
optional extensions, and a growing number
of advanced applications.
The range of advanced applications for specialized
analysis and management of critical grid
conditions includes:
●● Oscillatory Stability Management (OSM) for
real-time power system dynamics.
●● Mode Power Path (MPP) to show the path
of network power oscillations, identifying
regions or plants contributing to the mode.
●● Islanding, Resynchronization and Blackstart
(IRB) for real-time alarming, visualization
and restoring of islanding conditions.
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Figure 1: PhasorPoint Applications and Interfaces
●● System Disturbance Management (SDM) for
detecting disturbances, identifying locations
and characterizing the impact.
●● System Condition Monitoring (SCM) for
wide area visualization of system stresses
through deviations in voltage magnitude,
voltage angle, and frequency.

Success Stories
TRANSMISSION
Mode Power Path was used successfully after large, low frequency oscillations tripped an
existing protection scheme. 1,100 MW of load was disconnected, affecting millions and
threatening system collapse. A hydro plant influencing mode stability was identified and its
governor controller time constant reduced, improving performance significantly.
Oscillatory Stability Management was used to provide a 300MW increase in secure power
flows over a 1000MW interconnector, analyzing system dynamic behavior to allow a damping
measurement based limit, rather than a lower model-based limit with margin.
Islanding, Resynchronization & Blackstart detected islanding of a large hydro generator and
load where it was not identifiable through the EMS due to topology errors. The information
changed the operator’s course of action to address the problem, and provided visualization
of frequency and stability.
Connection of Renewables. e-terraphasorpoint 3.0 is used to identify long-term trends in the
frequency and oscillatory stability of the network as renewable energy penetration increases.

Future Directions
In the future, e-terraphasorpoint 3.0 will
support additional features to ease the tasks and
challenges of transmission network management
including:
Integrated Dispatcher Training
Environment
Alstom Grid’s integrated training environment
will allow operators to learn to use WAMS
together with the EMS for diagnosing and
resolving problems.
Dynamic Constraint Management
e-terraphasorpoint 3.0 will enable alarm limits
to adapt to thresholds derived from EMS/DSA
sources. For example, transient and voltage
stability thresholds can be integrated into
e-terraphasorpoint 3.0 for dynamic alarm
management and constraint relief.
Post-Event Analysis
Event reporting using WAMS/EMS/DSA data
with a simple unified user interface for the
various data sources, thus reducing time to
produce event reports.
Hybrid WAMS/DSA/EMS Voltage Stability
Using phasor-based stability indices and realtime
presentation, together with EMS/DSAbased
measurement of reactive reserves and
contingency analysis, voltage stability problems
can be flagged and presented in a way that
the condition can be understood and action
taken to resolve.
Consulting Services
Psymetrix consulting services include WAMS
solution specification and deployment with
advanced EMS integration, and extensive
expertise in phasor measurement resolvable
operational issues such as:
●● Constraint relaxation
●● Reliability improvement
●● Model validation
●● Plant performance improvement.
The Psymetrix approach includes sharing
methodologies and experience with customers
through workshops and ‘hands-on’ consulting
projects.
Psymetrix
TRANSMISSION
Psymetrix, an Alstom company, is a world leader
in phasor-based WAMS and power system
stability. Its products are used extensively by
operators and planners for improving security,
safely increasing power transfer levels and
tracking grid performance. Psymetrix has over
15-years’ experience of resolving power system
dynamics issues and successfully leveraging
synchronised measurement technologies.
In 2011, Psymetrix became Alstom Grid’s global
Center of Excellence for phasor-based WAMS
solutions and online stability.

Alstom Grid-NMS-L2-e-terraphasorpoint3.0-2860-2012_07-EN © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or
should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change
without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
GRID
For further information
please contact:
Alstom Grid Inc.
10865 Willows Rd. NE, Redmond
WA 98052-2502, USA
Tel: +1 (425) 822 6800
e-mail: transmission@alstom.com
ALSTOM Grid Worldwide Contact Centre
www.alstom.com/grid/contactcentre/
Tel: +44 (0) 1785 250 070
www.alstom.com