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Trends in SCADA Technology for Public Power

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Trends in SCADA Technology for Public Power Mike Parker Senior Electric System Dispatcher Roseville Electric mparker_at_roseville.ca.us William (Bill) Rambo – PowerPoint PPT presentation

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Title: Trends in SCADA Technology for Public Power


1
Trends in SCADA Technology for Public Power
Mike Parker Senior Electric System
Dispatcher Roseville Electric mparker_at_roseville.ca
.us
William (Bill) Rambo Vice President, Business
Development Survalent Technology
Corporation rambo_at_survalent.com
2
Technology
We are being asked to do more with less
3
Technology
Technology and the pace of change are relentless.
4
Technology
Our systems need updating
5
Technology
6
  • Agenda
  • Evolution of SCADA
  • SCADA Costs
  • Web Technology
  • City of Roseville case study
  • Integration
  • Q A

7
SCADA Timeline
  • Before SCADA
  • Simple Human-Machine Interfaces provided basic
    equipment monitoring
  • Limited information
  • Slow
  • Undependable
  • Messy

8
SCADA Timeline
  • Q How long have SCADA Systems been around?
  • A SCADA systems have been used in utilities
    industry in the United States since the 1960s

9
SCADA Timeline
First Generation SCADA Monolithic
  • Networks non-existent
  • Proprietary (expensive) hardware and software
  • Limited communication protocols strictly
    scanning and controlling points within the remote
    device
  • Limited graphics displays
  • Communications were slow, unreliable

Second Generation SCADA Distributed
Third Generation SCADA Networked
  • More powerful processors allowed for distribution
    of individual SCADA system functions across
    multiple systems
  • Improved the redundancy and reliability of the
    system
  • Still largely proprietary software. PC
    technology emerging
  • Information available in real time
  • Movement toward open system architecture
  • Windows based systems emerge
  • Possible now to distribute SCADA functionality
    across a Wide Area Network and not just a Local
    Area Network
  • Easier for the user to connect third party
    peripheral devices (such as monitors, printers,
    disk drives, tape drives, etc.) to the system
    and/or the network
  • Internet Protocol (IP) for communication between
    the master station and communications equipment
    allows for Ethernet connectivity
  • Enhanced graphical displays

1960s 1990s
10
SCADA Timeline
SCADA Today
  • Integration of standard Information Technology
  • OS Linux and Windows limited UNIX
  • Increased use of Intel Processors (Windows and
    Linux)
  • IP based RTU Communications (DNP/IP)
  • Integration of IEDs
  • Cyber Security Post 9/11
  • SCADA connected to the enterprise

11
SCADA Timeline
  • BOTTOM LINE
  • Public Power Benefits tremendously!
  • SCADA is not just for larger utilities

SCADA Costs
12
SCADA Trends
  • Web Technology

13
SCADA Trends
14
Web Technology
  • Utilized to provide a secure interface to SCADA
  • Provide transport for Data to and from SCADA

15
Web Technology
  • Before Web Technology
  • Proprietary software required
  • Difficult (and potentially expensive) to give
    multiple users access to the system
  • Limited access to SCADA data
  • Difficult to share access outside of the
    enterprise

16
Web Technology
DMZ
Web-Server
17
Web Technology
  • Powerful application to serve real-time SCADA
    information across the entire enterprise
  • Provides secure, read only access to SCADA
    information via a zero-maintenance web browser
    client.
  • Eliminates multiple instances of software to
    manage,
  • Custom web pages or,
  • Maintenance of a separate system.

18
  • Instant, out-of-the-box SCADA web server.
  • User-friendly drill-down interface to view
    configuration and information.
  • Tabular and Graphical Displays

19
  • Password protection
  • Off-loads client workstation data requests from
    SCADA master
  • Common pre-configured interface for all users, no
    need to build custom screens
  • Supports maps, alarms, operations messages,
    reports and graphs
  • Automatically retrieves data from alternate
    master during fail-over condition.

20
  • Tabular Displays
  • Dynamic
  • Station data, hierarchical
  • Alarms and operations messages

21
  • Tabular Displays
  • Reports
  • Tagged devices
  • Abnormal points
  • Failed points
  • Manually set points

22
Graphics
  • Server uses GUI as SVG graphics generator
  • Dynamic point updates
  • Dynamic trend graphs and feeder coloring
  • Navigation
  • Automatic and manual layer control
  • Leverage software investment
  • Leverage your graphics database investment

23
SCADA Trends
  • City of Roseville Application

24
Web Technology
  • City of Roseville, California
  • Background
  • Situation
  • Solution
  • Benefits

25
Web Technology
  • City of Roseville, California
  • gt43,000 meters
  • 17 distribution substations
  • Population doubled in last decade
  • 6-8System load increase every year for past
    decade
  • Peak load 315 MW
  • SCADA System for 15 years
  • 160 MW power plant coming on-line in 2007

26
Web Technology
  • Situation
  • Only way to get into SCADA was via single modem
  • Feeders at capacity
  • No 24 hour dispatch center
  • Need for access to SCADA outside of business
    hours
  • MS Access database for tracking load information
    had become support nightmare
  • Getting data out of SCADA was always a management
    issue for IT
  • Database size an issue for MS Access
  • Many utility personnel who need information from
    SCADA
  • Switching Power Marketing Services
  • Data input from ftp site
  • System load data to Power Marketer

27
Web Technology
  • Solution Web Server
  • Web server
  • Real-time replication of SCADA database to SQL
    database
  • Historical data archive
  • Web server knows when redundant SCADA servers
    fail over- pulls data from primary SCADA master
  • Reporting data from historical and real-time
    data for load information

28
Web Technology
  • Benefits
  • Easy access to SCADA
  • User ID and password
  • Multiple personnel can access
  • Security is maintained Web Server outside of
    SCADA firewall
  • Data in SQL database
  • Scalable, open platform
  • Web pages for sharing of near real-time data
  • Internal utility employees
  • Power Marketer
  • Easy import of data, using web technology back
    into SCADA from power provider

29
SCADA Trends
  • Integration

30
Integration
  • SCADA data is useful in other parts of the
    organization
  • Examples
  • Engineering Analysis
  • Outage Management
  • Metrics
  • Load Management
  • Geographical Information Systems

31
www.multispeak.org
32
MultiSpeak Project Objectives
  • Industry-wide open initiative sponsored by the
    National Rural Electric Cooperative Association
    (NRECA) to facilitate development of software
    interfaces needed by rural electric co-ops
  • Developed uniform interface definitions for data
    exchange among commonly used software
  • Developed consensus among vendors about details
    of the interfaces, including data dictionary,
    data objects, and messaging framework

33
What is MultiSpeak?
  • Specification for data exchange interfaces
  • Treats software applications as black boxes
  • Does not limit vendors from developing new
    features or working together to provide tighter
    integration than presently supported by spec

34
What MultiSpeak Does
  • Defines which data objects need to be exchanged
    between common software
  • Defines structure of those data objects
  • Specifies message structures and messaging
    architectures
  • Supports real time and/or file-based data
    exchanges

35
Re-Cap
  • SCADA Price/Performance for Public Power
  • Web Technology will provide value as an enabling
    technology
  • Interface to SCADA
  • Transport for data to/from SCADA
  • Integration of utility systems and elimination of
    silos of data will allow utilities to increase
    performance

36
Questions?
Thank you!
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