Psy PhasorPoint V6

[email protected]

www.psymetrix.com

tel: +44 (0)131 510 0700

COMMERCIAL-IN-CONFIDENCE. Copyright © 2010, Psymetrix Limited. All rights reserved. Psy-PhasorPoint-v6 1/7

PhasorPoint Solutions Architecture

Phasor Data Concentrators (PDC)

Phasor-based Wide Area Monitoring Systems (WAMS)

Phasor Applications Leading solutions for Wide-Area Monitoring, Control and Dynamic Performance Improvement

Power system security

Transfer constraint relief

Power system dynamics

Dynamic model validation

Stabiliser tuning

Network and generator connections



Overview

PhasorPoint is the Phasor Data Concentrator (PDC), phasor-based Wide Area Monitoring System (WAMS) and phasor applications solution for system operators and transmission companies. Psymetrix’s PhasorPoint systems provide Smart Grid solutions in the key areas of on-line stability, situational awareness, security analysis, grid optimisation, planning and asset management. As power companies face ever-increasing pressure to operate power systems closer to limits and to manage changes in generation profile arising from the increasing penetration of renewables, PhasorPoint provides proven solutions for enhancing grid reliability and efficiency. The PhasorPoint solutions architecture includes hierarchical multi-client server systems for phasor-based WAMS and phasor applications, with integrated Central PDC or standalone Regional or Substation PDC’s.

PhasorPoint works with all synchronised phasor measurement devices complying with the IEEE Std C37.118-2005 Standard for Synchrophasor for Power Systems. The PhasorPoint server side facilities provide a modular, scalable and flexible platform for synchronised phasor data management, monitoring and advanced applications. Key functionality includes:

Central PDC

Phasor and applications data storage

Standard phasor applications

Alarm/events and notifications management

Integration to EMS/SCADA

Advanced phasor applications Versions of the PhasorPoint Server are available for:

Enterprise Production/Operations systems

Enterprise Pre-production systems

Enterprise High Availability systems

Express Pilot systems

Regional PDC’s

The PhasorPoint platform provides a framework that supports a growing range of optional modules for integration and advanced phasor applications, including:

Oscillatory Stability Management (OSM)

Islanding, Resynchronisation & Blackstart (IRB)

Governor Stability Management (GSM) The client side provides flexible visualisation through the PhasorPoint Workbench clients which display information in a user focused form designed to meet the needs of users involved in:

Operations

Planning and Analysis

PhasorPoint Administration The PhasorPoint system is modular and scalable. The exact scope and functionality of a particular system is defined by its licensing specification. PhasorPoint is available in a number of different versions, including Express and Enterprise editions.

PhasorPoint Edition Best For

Express Pilot and small entry level systems

Enterprise Fully scalable operational systems

Other options include:

Enterprise Version Normal Availability High Availability

Production ✔ ✔

Pre-Production ✔ ✔

PhasorPoint and the PhasorPoint Applications are licensed according to the following metrics:

Metric Specifies

Aggregate Measurement Groups Visualisation elements

Phasors Determines # of phasors

Analytic Application dependent

Users Limited or unlimited

The PhasorPoint system is flexible and modular, allowing phasors, applications, options and integration services to be added as needed. Migration from Express to Enterprise versions is also supported.

An example of a PDC hierarchy in a large WAMS deployment

A typical example PhasorPoint deployment



Solutions

Today, as electricity demand grows, generation sources become more diverse, bulk energy trading increases and networks are increasingly interconnected, power system operations are becoming increasingly volatile. Commercial pressures to leverage transmission and generation assets whilst maintaining system security further compound the challenges faced by today’s power system professionals. In such a challenging environment, there is a growing need for fast, accurate and reliable measurement based tools for power system operations and planning. The availability of synchronised phasor measurement devices, such as Phasor Measurement Units (PMU’s), coupled with appropriate PhasorPoint data management and applications provide powerful solutions for the real-time monitoring of power system performance, including dynamics. Psymetrix’s solutions are used by power system operators and planners worldwide for:

Improving power system security,

Transfer constraint relief

Power system dynamics assessment

Dynamic model validation

Tuning of power system stabilisers

Network and generator connection assessment With over a decade of experience gained in successfully using our solutions to resolve power system dynamics issues, we are able to offer a wide range of services that deliver, including wide-area solutions design, power dynamics assessments and stabiliser tuning. Importantly, we are committed to providing skills transfer to guarantee our customers the greatest possible return on investment in our solutions.

PhasorPoint System

PhasorPoint systems typically include the following key elements: Core

Phasor Data Concentrator (PDC)

Data Storage Management

Integration

System Services Applications

Applications/Analytics

Alarms/Events/Notifications

Application Services

Workbench Services Client Workbench

User focused views

Live and/or historical views

System and Application Admin

PhasorPoint Core

Two key elements of the PhasorPoint core solutions set are described below. Phasor Data Concentrators

A Phasor Data Concentrator (PDC) receives multiple PMU data streams, performs stream data rate conversion where required, time aligns the stream and repacks the streams into one or more output streams for transmission to other systems requiring phasor data. Psymetrix provides a range of software PDC solutions, including:

Central PDC – integrated with PhasorPoint server

Regional PDC – for standalone operation

Substation PDC – for substation computing

platforms These PDC offerings provide essentially the same functionality, but may differ in their capability to support large volumes of data throughput. The first diagram shown on the previous page shows an example of a PDC hierarchy in a large phasor-based WAMS deployment. This hierarchy illustrates the advantage of the PDC capability, allowing multiple levels of data aggregation and forwarding. This has benefits in managing communications bandwidth usage and maintaining appropriate communications network security. Key features available with PhasorPoint PDCs include:

C37.118 streams in

C37.118 streams out

Phasor stream time alignment

Up/down sampling

User configurable output stream content selection

Web based configuration

Local storage option for Substation and Regional PDCs

Data Storage Management

The storage facilities offered by PhasorPoint include the following features:

Real time phasor data rolling buffer

Applications data rolling buffer

Long-term phasor data archive

Long-term applications data archive

Triggered storage

Automatic Substation PDC data recovery following connection loss



PhasorPoint Applications

The Standard Applications offered by PhasorPoint

include:

Voltage and Phase Angle Monitoring

Current Visualisation

System Frequency Monitoring

Active and Reactive Power Monitoring

Symmetrical Components

cos φ The Advanced Applications available include:

Oscillatory Stability Management (OSM)

Islanding, Resynchronisation & Blackstart (IRB)

Asynchronous Systems (ASC)

Governor Stability Management (GSM) PhasorPoint Workbench Overview

The PhasorPoint Workbench provides robust remote access to all of the visualisation and analysis applications available. The Workbench can be tailored to provide different views to different classes of user. Each of the individual applications that together comprise the complete workbench share a common interface and design methodology. Many of the system and application tabs provide a map view of the WAMS. Maps provide an intuitive way of quickly viewing relationships between components in both localised regions of the WAMS and for the entire system as a whole.

All maps, including the overview map, are composed of two levels. A System Level view and a Measurement Level view. The system level view shows an overview of the entire WAMS. The hexagonal icon represents an Aggregate Measurement Group (AMG). Measurement Groups

contain one or more measurement sites. For example, a measurement group may represent a particular group of PMUs that measure related signals. Measurement groups provide a method of grouping particular measurements from one or more PMUs.

Double clicking on a measurement group icon switches the map to the measurement level view for that group. Each measurement group can have its own background image and map properties configured. This allows the icons within a single measurement group to be placed appropriately against geographic or schematic backgrounds.

Voltage and Phase Angle Monitoring

The PhasorPoint Voltage and Phase Angle application deliver real-time voltage angle monitoring with alarms and on-line and off-line visualisation.

The PhasorPoint workbench provides a graphical representation of voltage magnitudes and phase angles throughout the system. A map view is provided so that an appropriate image can be configured to act as a backdrop to the positioned measurement icons. Visualisation at the System Level provides a complete

overview of voltage magnitudes and phases throughout the WAMS. Drill-down is provided to the Measurement Level view.

Maps at the measurement level provide views of individual voltage measurements together with any defined angle differences. Live strip charts displaying the voltage magnitude and angle for any selected phasor are displayed below the map.



Key benefits of the Voltage and Phase Angle

application include:

System stress indication

EMS/SCADA backup

Solution of wide-spread voltage profile problems

Observation of wide-area voltage support System Frequency

The PhasorPoint System Frequency application provides a graphical representation of frequency throughout the system with alarms. Key benefits of the PhasorPoint System Frequency

application include:

System stress indication

Blackstart & islanding recovery

Disturbance indication

EMS/SCADA backup Active and Reactive Power (P&Q)

The PhasorPoint P&Q applications deliver real-time detailed measures of the active and reactive power in monitored circuits. Derived from current and voltage phasors, these records are useful for observing steady-state and transient responses. Key benefits of PhasorPoint P&Q applications are:

Visualisation of transients

EMS backup Alarms/Events/Notifications

PhasorPoint provides real-time detection and wide-area display of magnitude and transient events for alerting operators to conditions of key measurement deviations. Events (Real-time Alarms) include:

Automatic transient event detection

Magnitude events (upper/lower threshold)

Notification options include:

Visual

Audible

Email

To external systems Key benefits of the PhasorPoint

Alarms/Events/Notifications include:

Real-time disturbance indication

Post event analysis Oscillatory Stability

The PhasorPoint Oscillatory Stability applications utilises the unique and sophisticated modal analysis technology (PDX) developed by Psymetrix. This technology provides continuous, real-time and full characterisation of the low-frequency modes of power system oscillation, including damping. The Psymetrix modal analysis technology has been successfully deployed operationally for over a decade. Stability Analysis includes:

Analyses for operations (Fast Modal Analysis)

Analyses for planning (Trend Modal Analysis)

Identification and characterisation of dominant low frequency modes of oscillation, including mode: Frequency Amplitude (for analysed signal) Damping Phase



Events (Real-time Warning and Alarms) include:

Mode frequency

Mode decay time

Mode amplitude Visualisation features include:

Topological display (mode amplitude, phase and alarm status)

Mode frequency histogram

Locus plots (mode decay time vs mode amplitude)

Strip charts - trending Key Benefits of the PhasorPoint Oscillatory Stability

applications include:

Improved power system security

Increased secure power flows

Damping controller performance enhancement

Identification of oscillation source/control location.

Model validation Islanding, Resynchronisation and Blackstart

Voltage phasor measurements, together with frequency measurements, can provide an immediate indication of the separation of a system into two or more electrical islands. They can also provide valuable information for operators to prepare the system for resynchronisation and supervise the process of synchronising the system and subsequent network strengthening. It can be very useful for operators to have a supervisory indication of the frequency and angle so that islands can be balanced before a resynchronisation is attempted.

This view of the system is also useful in the blackstart

process. A blackstart plan normally involves energising the system from a few generators at strategic positions in the grid, then re-energising the network in islands around these generators and finally reconnecting the islands. The network can be quite insecure during this process, and a view of the stability of frequency and angle in real-time is very useful. The Islanding, Resynchronisation and Blackstart

(IRB) Advanced Application provides a real-time tool for identifying islanding and providing information valuable in performing a successful resynchronisation. It provides a real-time view of both angle and frequency across a network topology map. It also provides visual indication of when and where islanding has occurred with a visualisation of frequency deviation between areas. Asynchronous Systems

A power system that includes two or more separate synchronous areas interconnected by High Voltage Direct Current (HVDC) couplings requires independent

treatment of each synchronous zone. For example, if all phasors were referred to a single angle reference, then during normal operation, one synchronous area will show almost static phasors while in the other synchronous areas the phasors will rotate continuously. This phasor rotation would hide potentially significant information. The PhasorPoint Asynchronous Systems advanced application (ASC) provides the tools and

mechanisms for grouping PMUs according to which synchronous area they are measuring and defining separate angle references for each area.

The ASC advanced application also fully integrates with the Oscillatory Stability Management (OSM) and Islanding Resynchronisation and Blackstart (IRB)

advanced applications. For example, where the WAMS system is observing multiple asynchronous areas, the ASC advanced application ensures the extraction and monitoring of dynamics take account of the fact that there are independent patterns of oscillation in each area. In the IRB advanced application, each synchronous area is independently monitored and visualised.



EMS Integration

Psymetrix is working with leading Energy Management System (EMS) vendors to provide PhasorPoint EMS integration. This enables key PhasorPoint information to be made available to system operators through their EMS Situational Awareness dashboards and other screens. This integration also allows SCADA and PMU derived data to be combined within PhasorPoint to provide additional dynamics insights thus improving the information available to system operators and planners.

WAMS Design and Deployment

Psymetrix has significant experience in the design and deployment of WAMS (Wide-Area Monitoring Systems) using PMUs from a number of different vendors. Services provided include the design of WAMS ranging from small-pilot schemes right up to large-scale deployments that are flexible, scalable and reliable. Our approach ensures that the WAMS design is suitable for the available or planned communications infrastructure, and that the appropriate phasor data concentrator architecture, applications and integration required is delivered. Furthermore, where synchrophasor measurements are already available as part of existing protection relay, IED or PMU deployments, Psymetrix will happily advise customers on how to get the most out of their existing measurement investment whilst at the same time leveraging the benefits of Psymetrix’s PhasorPoint data management facilities and advanced applications.

Psymetrix

Psymetrix provides world-beating products and services that deliver significant benefits in the operation, and planning of electrical power systems. Established in the UK in 1997, Psymetrix has over a decade of experience in providing solutions to the global power sector and is recognised as an Industry Leader in the field of power system dynamics and

wide-area monitoring systems (WAMS). The Psymetrix PhasorPoint Flexible Wide-Area Solutions architecture provides a full-range of scalable

building blocks for synchronised measurement and monitoring systems. The wide-range of easy to use functionality available includes efficient real-time data management, archiving, visualisation and advanced applications. The latter includes an enhanced version of the industry-leading Psymetrix oscillatory stability monitoring technology. Psymetrix has an enviable track record in delivering effective real-time oscillatory stability monitoring. Our unique modal analysis technology has been successfully deployed operationally for over a decade and represents a world First for Dynamics, providing

continuous real-time tracking of the damping of low-frequency modes of power system oscillation. Psymetrix has built on this heritage to provide the industry’s most comprehensive and proven set of tools for the early detection, characterisation and tracking of poorly damped modes of power system oscillation. This experience has also shaped the successful development of our wide-area synchronised measurement and monitoring solutions. Psymetrix’s Proven Solutions are used by power

system operators and planners worldwide for improving power system security, securely increasing power transfer levels and tracking power system performance, including dynamics, model validation, tuning of power system stabilisers and more. With over a decade of experience gained in successfully using our solutions to resolve power system dynamics issues, we are able to offer a wide range of Services that Deliver, including wide-area

solutions design, power dynamics assessments and stabiliser tuning. Importantly, we are committed to providing skills transfer to guarantee our customers the greatest possible return on investment in our solutions.

Errors and omissions excepted. Specification subject to change without notice.

Psymetrix Limited Mitchell House – 1

st Floor, 5 Mitchell Street, Edinburgh, EH6 7BD, Scotland, UK

Tel: +44 (0)131 510 0700 Fax: +44 (0)131 555 5185 [email protected] www.psymetrix.com

Documents

Psy PhasorPoint V6