Software Architecture for Automated Fault Analysis: Scalable Deployment and Use of Open Source

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This paper discusses architecture-significant requirements for an automated fault analysis system. The analysis utilizes substation data collected from event-triggered intelligent electronic devices (IEDs). The proposed architecture assumes generic, transparent, and robust computations that can be applied to variety of IED types and models. When defining a universal solution, the use of standards is critical to facilitating the transparency, scalability, and interoperability. The solution is typically configured to fit the end user needs, which requires configuration traceability, acceptance testing, and change management after the deployment. Another aspect of the transparency and scalability of the proposed solution is the use of open source software (OSS), both for the development and deployment of the system. The discussion includes the deployment tools selection and setup. Particularly, the experiences and benefits of using OSS when deploying a system for automated fault analysis are shared.

Engineering Technology Education

FDAC 2013
Software Architecture for Automated Fault Analysis:
Scalable Deployment and Use of Open Source
T. Popovic, M. Kezunovic, B. Krstajic
presented by:
Tomo Popovic,
XpertPower Associates
May 2013

2
Introduction: Solutions with Open Source
● Popularity of OSS in recent years
– Wide availability of the Internet
– Variety of OSS development tools
● Software Development Methods
– Agile development vs. traditional “waterfall”
– Embracing the change
● Interoperability and standardization
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

3
Outline
● Introduction
● Background
● Implementation framework
● Deployment using OSS
● Experience and considerations
● Conclusions
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

4
Background: OSS Process
● Process:
– Initiation
– Execution
– Releasing
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

5
Background: Roles in software projects
● Commercial:
– Developers
– Users
– Customers
● Open Source:
– Developers
– Users (co- developers)
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

6
Background: Standards
● COMTRADE
● COMNAME
● COMFEDE
● IEC 61850
● IEC 61970
● ASCII
● XML
● SQL
● Other
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

7
Outline
● Introduction
● Background
● Implementation framework
● Deployment using OSS
● Experience and considerations
● Conclusions
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

8
Implementation Architecture: Framework
● Data Warehouse:
– Event data
– Configuration settings
– Analytics results/reports
● Implementation Interfaces:
– IED data import/unification
– Configuration access
– Data analytics
– Data and reports access
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

9
Implementation Architecture: Data Import
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

10
Implementation Architecture: Data Analytics
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

11
Implementation Architecture: Data Analytics
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

12
Implementation Architecture: Data Access
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

13
Outline
● Introduction
● Background
● Implementation framework
● Deployment using OSS
● Experience and considerations
● Conclusions
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

14
Deployment Using OSS: Tools Summary
● Core Technology: Java (OpenJDK)
● Operating System: Linux (and others)
● Application Server: Apache Tomcat
● HTTP Server: Apache2
● Database: PosgreSQL
● Workstation: Firefox, OpenJRE
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

15
Deployment Using OSS: UML Diagram
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

16
Deployment Using OSS: User Interface
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

17
Deployment Using OSS: User Interface
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

18
Outline
● Introduction
● Background
● Implementation framework
● Deployment using OSS
● Experience and considerations
● Conclusions
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

19
Experience: Summary
● Field installations:
– Pilot and system-wide
– Variety of IEDs (DFRs, DPRs, CBRs)
● 10,000s of event files processed
● Single- and two-end fault location
calculation
● Variations in protection evaluation
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

20
Experience: Field Event Example
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

21
Experience: Report Examples
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

22
Considerations: What if?
● What would it take turn the solution like
this into OSS project?
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

23
Considerations: Challenges
● Team forming
●
Variations in needs
and configurations
● End user's proprietary
information and
security
●
Warranties,
guarantees,
and liability
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

24
Considerations: Initiation
● Initiation “boost”;
sponsorship
● Understanding roles
and support from
utilities, government,
and vendors
● Understanding the
benefits of OSS
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

25
Considerations: Simplify Project Objective
● Breaking down into
subsystems
● Specific algorithms/
functions
● Support by work
groups, vendors
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

26
Considerations: Custom-built Solutions
● Important role of
vendors
● Custom fit to the needs
and configuration
● End user's proprietary
information and security
● Warranties, guarantees,
and liability
● Commercial support
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

27
Outline
● Introduction
● Background
● Implementation framework
● Deployment using OSS
● Experience and considerations
● Conclusions
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

28
Conclusions
● Architecture-significant requirements for automated IED data
fault analysis are presented.
● The proposed architecture aims at universal solution with
transparent access to data, configuration and analytics results.
● The implementation framework and experience with
deploying the solution using OSS are discussed.
● Awareness about the availability and quality of OSS
development and deployment tools.
● Issues and concerns related to implementing the solution as
OSS have been discussed.
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

29
Questions?
© 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

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Software Architecture for Automated Fault Analysis: Scalable Deployment and Use of Open Source

1. FDAC 2013 Software Architecture for Automated Fault Analysis: Scalable Deployment and Use of Open Source T. Popovic, M. Kezunovic, B. Krstajic presented by: Tomo Popovic, XpertPower Associates May 2013

2. 2 Introduction: Solutions with Open Source ● Popularity of OSS in recent years – Wide availability of the Internet – Variety of OSS development tools ● Software Development Methods – Agile development vs. traditional “waterfall” – Embracing the change ● Interoperability and standardization © 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

8. 8 Implementation Architecture: Framework ● Data Warehouse: – Event data – Configuration settings – Analytics results/reports ● Implementation Interfaces: – IED data import/unification – Configuration access – Data analytics – Data and reports access © 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

14. 14 Deployment Using OSS: Tools Summary ● Core Technology: Java (OpenJDK) ● Operating System: Linux (and others) ● Application Server: Apache Tomcat ● HTTP Server: Apache2 ● Database: PosgreSQL ● Workstation: Firefox, OpenJRE © 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

19. 19 Experience: Summary ● Field installations: – Pilot and system-wide – Variety of IEDs (DFRs, DPRs, CBRs) ● 10,000s of event files processed ● Single- and two-end fault location calculation ● Variations in protection evaluation © 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

23. 23 Considerations: Challenges ● Team forming ● Variations in needs and configurations ● End user's proprietary information and security ● Warranties, guarantees, and liability © 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

24. 24 Considerations: Initiation ● Initiation “boost”; sponsorship ● Understanding roles and support from utilities, government, and vendors ● Understanding the benefits of OSS © 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

25. 25 Considerations: Simplify Project Objective ● Breaking down into subsystems ● Specific algorithms/ functions ● Support by work groups, vendors © 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

26. 26 Considerations: Custom-built Solutions ● Important role of vendors ● Custom fit to the needs and configuration ● End user's proprietary information and security ● Warranties, guarantees, and liability ● Commercial support © 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

28. 28 Conclusions ● Architecture-significant requirements for automated IED data fault analysis are presented. ● The proposed architecture aims at universal solution with transparent access to data, configuration and analytics results. ● The implementation framework and experience with deploying the solution using OSS are discussed. ● Awareness about the availability and quality of OSS development and deployment tools. ● Issues and concerns related to implementing the solution as OSS have been discussed. © 2013 Copyright T. Popovic, M. Kezunovic, B. Krstajic

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