Dynamic Training Environment for Synchrophasor Applications

Jean-Marc MoulinEMS Business Development Director

International Workshop on Electric Power Control CentersMay 17-20 2015, Bled Slovenia

© ALSTOM 2015. 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.

What is SynchroPhasor Technology?

− Next generation measurement technology.(voltages, currents, frequency, frequency rate-of-change, etc)

− Higher resolution scans (e.g. 30 samples/second).─ Improved visibility into dynamic

grid conditions.─ Early warning detection alerts.

− Precise GPS time stamping.─ Wide-area Situational Awareness.─ Faster Post-Event Analysis.

MRI quality visibility of power system compared to X-ray via SCADA PMU Resolution

SCADA Resolution

Phasor Measurement Units (PMUs)

© ALSTOM 2015. 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.

Synchrophasor Solutions for the Control Room

Synchrophasor MeasurementSynchrophasor Measurement

− Synchronised V&I measurements− 50/60Hz data captures dynamics− Phasor format efficient for real-time

streaming

Why Synchrophasors?Why Synchrophasors?

� Improve security

� Increase transfer

� System analysis

� Manage renewables

Client Applications

C37.118 PMU/PDC Data Stream

SCADA Protocol eg IEC 60870-101/4

EMS Integration

© ALSTOM 2015. 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.

Example 1: Oscillatory Stability Management

� Ecuador Mode 0.54Hz

� Governor Mode 0.05Hz

Trigger Re DispatchE.g. Reduce inter-

area tranfer,

Input to AGC

Generator P,Q setpoint

Well-known 0.05Hz - if large,

Re-dispatch San Carlos output

© ALSTOM 2015. 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.

Select 2 locations for:

Frequency differenceVmag differenceVangle difference

Align for successful reclosure

Example 2: Islanding, Resynchronisation & Blackstart

© ALSTOM 2015. 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.

Key Drivers and Use Cases

Key Drivers

� Growing demand coupled with lack of investment in transmission is forcing the grid to operate closer to its stability limits.

� Larger penetration of renewables is introducing new dynamics.

⇒ Need for modern day Energy Management Systems to provide dynamic observability (i.e. WAMS) and real-time stability analysis (i..e Dynamic Security Assessment) capabilities.

⇒ Equally important is a training environment for introducing operators to these new synchrophasor applications and security assessment tools (e.g. NERC mandates operator training on tools being introducted into the control room).

DT

S

INT

EG

RA

TIO

NP

HA

SO

RP

OIN

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Use Cases1) Stand-alone WAMS Training Environment

Dynamic simulation capability driving synchrophasor applications in PhasorPoint.

Demonstrates the product’s capabilities for WAMS real-time applications, enabling exercise the

trainee’s understanding of the solution.

2) Historical Event Capture Playback

Re-run of past system events within the WAMS environment, enabling configuration adjustments

and operator response analysis.

3) Real-Time Dynamic Dispatcher Training Simulator (DTS/OTS)

Fully mimics the operational environment in a control-room, allowing the trainee to change the course of the system’s response in real-time.

© ALSTOM 2015. 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.

CASE 1: “Stand-alone” WAMS Training Environment

GOAL: Utilize Transient Stability Analysis (TSAT) engine

to generate simulated PMU data, driving PhasorPointapplications.

ePMU

PhasorPoint Synchrophasor Applications

© ALSTOM 2015. 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.

Sample Screenshot

TSAT Simulation Engine

(generating PMU data)

PhasorPoint Workbench

(receiving PMU data)

© ALSTOM 2015. 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.

CASE 2: Historical Event Capture Playback

GOAL: Ability to retrieve key event captures of interest and replay

through PhasorPoint to reconstruct operator displays.

PhasorPoint Synchrophasor Applications

© ALSTOM 2015. 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.

EMS Platform

Integrated Dispatcher Training System:

• Real-time simulator based on Powertech TSAT

• Simulated data is fed directly into PP as C37.118 streams

• Data is also downsampledand sent to the EMS & DSA Tools

• EMS integrated with PhasorPoint and DSA tools

PhasorPointTraining Server

DSA tools

Central PDC

ApplicationServices

Data Services

Load Flow Simulation

Dispatch Control ETV Engine

Dynamic

Grid Simulator

Control Room

Training Environment

Operator in Training

Downsampling

alarms

Simulated

C37.118 Data

Powertech TSATEnvironment

CASE 3: “Integrated” Training Environment (e-terrasimulator)

GOAL: Integration of Dispatcher Training Simulator (DTS) and a

Transient Stability Engine (PowerTech TSAT).

⇒⇒⇒⇒ Shaping the next-generation DTS/OTS

© ALSTOM 2015. 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.

e-terrasimulator

The Transient Stability Displays are available as a Submenu from the DTS Control Display

© ALSTOM 2015. 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.

e-terrasimulator

TSAT configured on a remote machine

© ALSTOM 2015. 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.

e-terrasimulator

• The DTS node-breaker model is mapped to the bus-branch model used by TSAT using the translation table

• The Translation Table is updated every time the DTS topology changes

• The Bus tab includes the Bus mapping between the Dynamic Data and the Network information

© ALSTOM 2015. 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.

e-terrasimulator

TSAT events triggered by modified DTS Outage and Fault Events

© ALSTOM 2015. 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.

e-terrasimulator

t=4t=1

t=2t=3

t=10

Handoff back to

the DTS

t=0

Output (Generator Bus Frequency)

© ALSTOM 2015. 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.

e-terrasimulator

Output (SCADA)

• Bus Frequencies Sent from TSAT to DTS on a 1 second dynamic cycle, and are processed to determine DTS Frequency Relay Trips.

• Voltage/Angles Sent From TSAT to DTS on a 1 second cycle.

• Voltage/Angles processed to determine other DTS relays

(Voltage/Current).• Network STATE calculation is performed to determine branch flows

which is then sent to SCADA.

Output (Phasor Applications)

• Bus Voltage Phasors, Current Phasors, Frequency, df/dt sent to PMU applications at sub-second rate (IEEE C37.118 format).

© ALSTOM 2015. 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.

Summary

As we introduce WAMS and real-time dynamic stability analysis capabilities into the control room, it is imperative to provide a training environment for operators/dispatchers have a training environment to:

� Gain familiarity with the new stability metrics (such as angular separation and oscillatory damping), and how they are impacted with increased stresses on the grid.

� Playback past events of interest to analyze operator responses during those conditions.

� Provide unified view across traditional (steady-state) EMS tools (such as State Estimation, Contingency Analysis) alongside the new dynamic stability related information.

Alstom has been collaborating with Pacific Gas & Electric (US) to develop this next-generation e-terrasimulator with full WAMS integration and dynamic simulation capabilities to meet the needs of the future control room.