distribution automation program - ualberta.caapic/uploads/forum/p3.pdf · 2013-11-07 ·...

1

Confidential – all rights reserved

Distribution Automation Program

Automation Towards a Distribution Management System at ATCO Electric

Presented by Chris Loo at the

APIC Power & Energy Innovation Forum – 2013

University of Alberta, ETLC Solarium

6 November 2013

2 Confidential – all rights reserved

DA Program Overview

Purpose: To improve system reliability through automation and Distribution Management System technologies

Key Goals:

1. Control and manage SAIDI, CAIDI, operational risk: cities,

important customers & sites, worst-performing feeders

2. Support operation of complex cities, remote sites,

specific customer requirements

3. Support inexperienced operational staff and

undermanned districts


DA Program Overview


DA Program Overview

Horizontal development Extending reach in the field Visibility & control “Things That Go On A Pole” Vertical development Extending what we can do with existing field assets “Things That Go On A Server”


DA Program Overview

Things That Go On A Server

Things That Go On A Pole

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Field SCADA Projects


SCADA – Overview

Existing DSCADA site

Under construction

Future DSCADA site

Control centre

?

?

Goals • Switch visibility • Switch control • Fault location • Faster response times!


SCADA – Overview

Cities

High-density area -> any improvement helps many people

Modest improvement to many people

Materially improve SAIDI, etc. indices

‒ SAIDI: amount of time an average customer is out each year

‒ More customers improved -> better SAIDI performance

Rurals

Long distances -> any improvement saves much time

Large improvement to few people (but may include key industrial

customers)

Target strategic feeders: worst performers, special conditions


SCADA – Technologies

Gang switches (overhead & switch cubicle):

field retrofit with motors

No need to change switchgear

Manufacturer-supported design

Labour-intensive retrofit

SEL-751A controller

One size fits all

Built-in overcurrent -> fault detection

Logic for field-level automation


SCADA – Technologies

Reclosers

ABB OVR comes SCADA ready

Insert radio, receive SCADA

SMP-16 data concentrator

Ease of configuration & commissioning

Troubleshooting tools

Designed with security in mind

Remote administration capabilities


SCADA – Challenges & Lessons Learned

Field retrofits are labour intensive!

‒ Difficult to spare for quick responses

‒ Inappropriate for new construction

• One is okay, ten is doable, a hundred is madness

‒ External cables are target for vandalism

‒ Working with manufacturer to get a kit design

Need field support to be successful

‒ Engage front-line workers as well as management early

‒ Engage affected engineering groups early: standards, asset management,

designers

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Field SCADA Projects – Telecom


Distribution Telecommunications

Purpose: Distribution Telecommunications

will support

Distribution Automation

Metering

Mobile

???


Technology Options

Many environments:

Urban/Rural

Many options:

Mesh Network (In pilot stage)

Fixed point-to-point

Cellular/satellite phone


Mesh Network

One or more gateways create mesh connections to nodes.

Streetlight and Pole mounted devices

Redundant paths

Low install cost per node

Central management system

Unlicensed frequency (2.4 GHz)


End Devices

Pilot Mesh Network (Fort McMurray)


Installed Nodes connect devices to the Tower

Pilot Mesh Network (Fort McMurray)


Fixed Point-to-Point/Point-to-Multipoint

Communication connection from:

‒ Tower to end device (PTP)

‒ Tower to many end devices (PTMP)

Advantages:

‒ Longer range

‒ Full control

Disadvantages:

‒ Possible licensing requirements


Cellular/Satellite Communication

Cellular Communication

‒ Existing local infrastructure

‒ Slower than fixed radio

‒ Monthly contract for end device

Satellite Communication

‒ Is global

‒ Slower than fixed radio

‒ Monthly contract for end device


Cellular/Satellite Communication

ATCO Towers – Sited for

Substation Communications

Telus & Rogers Cell Towers – Sited

for Customer Communications


Key Learnings & Opportunities

1. Involve the Cyber Security Office as soon as possible with new

technologies to ensure compliance with security standards (and to

mitigate risks).

2. 2.4 GHz is a very cluttered frequency

‒ this impacts range significantly

‒ choose your channel

3. Mesh network is designed to be used in small clusters

‒ More path options provides higher redundancy

4. Combine technologies (Mesh + Cellular/PTP/PTMP)

‒ Can use the cellular network as a backhaul device

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Things That Go On A Server

IT / OT Integration SCADA / OMS Integration


IT / OT Integration – Phases

Current state: separate IT and OT networks

1. One-way integration ‒ SCADA data availabe to OMS

‒ Automatic outage generation

‒ Proof of concept: bridging the networks

‒ Pave the way for…

2. Two-way integration ‒ SCADA controls from OMS

‒ Streamline operator interface

‒ Proof of concept: controls initiated from IT network environment

‒ Pave the way for…

3. Goal – Distribution Management System ‒ …and other applications?


IT / OT Integration – Overview


IT / OT Integration – Benefits

Automatic outage generation

‒ Save administrative work (manually entering data)

‒ Improve accuracy of outage data

Reduce operator screen clutter

‒ SCADA, OMS, and real-time managed map can all be consolidated

‒ Eventual goal: one screen (OMS, future DMS)

Reduce manual map maintenance

‒ OMS imports maps from GIS

‒ SCADA screens are built by hand – duplicated effort

Proof of concept for bridging networks

‒ Pave way for future DMS, which needs data from both sides

‒ Other future applications that need data from both sides?


IT / OT Integration – Challenges

Additional support and data management needed on OMS

Security considerations

‒ Closing the air gap

‒ Controls from the “untrusted” corporate IT network?

Potential flood of new applications once proof of concept is accepted


IT / OT Integration – Lessons Learned

Complete visibility of the IT and OT networks

‒ Assembled a holistic view in order to decide architecture

Engaging stakeholders at all levels from the beginning

‒ Front line and upper management

‒ Key project acceptance and risk management

Better understanding of the complexities (Corporate and IT related)

involved with automating SCADA-controlled components

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In Conclusion

And so…


Bringing It All Together

Horizontal expansion Visibility / control of

more sites

Vertical expansion Do more with existing

visibility / control


Key Takeaway

• Engineering projects

• Isolated one-off solutions

Past

• Program

• Cross-discipline involvement

• Sustainability

Present

• Improved tools

• Better ways to do work

• Many groups benefit

Future

More than just engineering!

distribution automation program - ualberta.caapic/uploads/forum/p3.pdf · 2013-11-07 ·...

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