Addressing the challenges for integrating micro-synchrophasor data with operational system applications
PES General Meeting | Conference Exposition, 2014 IEEE
Stewart, E.M. and Kiliccote, S. and Shand, C.M. and McMorran, A.W. and Arghandeh, R. and von Meier, A.
This paper describes challenges for integrating high fidelity data with utility distribution operations. Two research projects are described microsynchrophasors (μPMU) and OpenPMU and explore the applications of data for electric power distribution systems.
T D Conference and Exposition, 2014 IEEE PES
McMorran, A.W. and Rudd, S.E. and Shand, C.M. and Simmins, J.J. and McCollough, N. and Stewart, E.M.
Modern mobile devices are capable of running sophisticated, network-enabled applications exploiting a variety of sensors on a single low-cost piece of hardware. The electrical industry can benefit from these new platforms to automate existing processes and provide engineers and field crew with access to large amounts of complex data in real-time, anywhere in the world. The development of a standards-based application decouples the mobile client application from a single vendor or existing enterprise system, but requires a complex data integration architecture to support the use and exploitation of large amounts of data spread across multiple existing systems. The integration with a mobile application introduces new challenges when dealing with remote devices where data network communications cannot be relied on, especially under storm conditions, and the devices themselves are at risk of being lost or stolen. Addressing these challenges offers the potential to improve data quality, enable access to accurate, up-to-date information in the field and ultimately save a utility time and money.
Power Engineering Conference (UPEC), 2014 49th International Universities
Shand, C. and McMorran, A. and Taylor, G.
The scalable communication, processing and storage of data within a power network is becoming more and more necessary to ensure the reliability of the grid and maintain the security of supply to consumers. Not all communications are performed in the same timeframe, at the same frequency, or at the same time of day; this results in problems when trying to coordinate a power network and the necessary data exchange. Different open or proprietary standards are often incompatible with each other both in terms of their communication protocols and data models. This causes electricity companies and standards groups to develop their own method of data exchange thus resulting in problems for exchanging and integrating this data, both internally and externally. Overcoming the challenges with incompatible data structure, serialisation formats and communication protocols will make it easier to integrate systems and realise the potential of being able to integrate data across domains. These include the ability to integrate real-time data into offline analysis tools; or utilising smart-meter data to enable true real-time pricing for electricity markets.
Potential integration of Phasor Measurement Units and Wide Area Monitoring Systems based upon National Grid enterprise level CIM
Power and Energy Society General Meeting (PES), 2013 IEEE
Taylor, G.A. and Hargreaves, N. and Ashton, P. and Bradley, M.E. and Carter, A. and McMorran, A.
Summary form only given. The IEC Common Information Model (CIM) supports interoperability between power system applications by providing, as a reference model, a generic means of sharing heterogeneous proprietary data models at an enterprise level. Extension of the CIM to facilitate the modelling of Intelligent Electronic Devices (IEDs) such as Phasor Measurement Units (PMUs) is desirable from the perspective of data integration and wider uses of situational awareness. Such use cases could include near real time update of the Energy Management System (EMS) and advanced visualization of network status. However, the unification or harmonization of two key standards will be required in order to achieve such a goal. IEC 61970, a core CIM standard, was developed in (Universal Modelling Language) UML to facilitate the interoperability of extensive power system applications. Independently, IEC 61850 was developed primarily for substation control, monitoring and automation purposes and therefore represents a significant part of the Wide Area Monitoring Systems (WAMS) and PMUs domain. This presentation provides a brief overview of both standards and potential ways in which they can be extended to interoperate for the purpose of modeling IEDs and PMUs. Current enterprise level CIM use cases relating to National Grid as the GB transmission system operator will also be presented.
Power and Energy Society General Meeting, 2012 IEEE
McMorran, A.W. and Rudd, S.E. and Simmins, J.J. and McCollough, N. and Shand, C.M.
With the intention of supporting personnel in the field, this paper proposes a mobile application for data management and visualization. Taking advantage of modern mobile devices provides an inexpensive platform with built in sensors and power, providing field crews with important information regarding asset history, location and documentation while on the move. The use of such an application can also provide a platform for scheduling “real time” work requests and creating switching orders whilst in the vicinity of the asset, saving time and paper.
Addressing the challenge of data interoperability for off-line analysis of distribution networks in the Smart Grid
Transmission and Distribution Conference and Exposition (T D), 2012 IEEE PES
McMorran, A.W. and Stewart, E.M. and Shand, C.M. and Rudd, S.E. and Taylor,G.A.
As utilities move towards a more intelligent, autonomous distribution network with increased penetration of distributed generation there is a requirement for utilities and consultancies to analyze how these changes will affect network operation and performance under varying conditions. This requires a large amount of data and results to be moved on a frequent communications basis between applications from a number of different vendors, all of whom use their own proprietary data formats. This paper will discuss how these challenges are impacting off-line analysis of complex networks and how open standards can enable companies to efficiently share and exchange network models between incompatible applications.
Lasers and Electro-Optics (CLEO), 2011 Conference on
McMorran, B.J. and Agrawal, A. and Anderson, I.M. and Herzing, A. and Lezec, Henri J. and McClelland, J.J. and Unguris, J.
We use nanofabricated diffraction holograms to demonstrate electron Laguerre-Gaussian beams. These beams are analogous to optical vortices but are composed of charged particle wavefunctions possessing mass.
Developing emerging standards for power system data exchange to enable interoperable and scalable operational modelling and analysis
Universities’ Power Engineering Conference (UPEC), Proceedings of 2011 46th International
Hargreaves, Nigel and Hargreaves, Nigel and Taylor, Gareth and Carter, Alex and McMorran, Alan
Novel information architectures, the IEC 61970 Common Information Model (CIM), and related standards could enable solutions for effective information exchange required to facilitate interoperable smart grid and supergrid development. Meeting the need to integrate heterogeneous energy management systems to control electricity networks handling an increasingly variable injection of power and demand management is essential. Information modelling and the requirement for common semantic references to base data exchanges upon, now become critical to European electricity business development. We discuss some of the challenges to utility information model exchange and conceptual solutions from developments in the CIM, based on experience gained within National Grid, the GB transmission system operator.
Power and Energy Society General Meeting, 2011 IEEE
McMorran, A.W. and Lincoln, R.W. and Taylor, G.A. and Stewart, E.M.
There are a number of highly significant misconceptions about what the CIM is, how it is used and what users should expect from products claiming CIM Compliance. This paper will try to address the reality of what the CIM is and how such significant misconceptions often reflect a misunderstanding about the CIM based on its most common implementations. The issue of CIM compliance will be considered from the perspective of profiling and interface definitions and why this makes the large, complex model, more manageable for those seeking to support a CIM interface.
Power Systems Conference and Exposition (PSCE), 2011 IEEE/PES
Energy management systems employ a variety of schematic and quasi-geographic presentations in their user interfaces. These are sometimes generated automatically, but more often are hand-drawn and require considerable labor to create and maintain. Most of this labor goes into the arrangement, or `layout’ of the power system elements within the overall diagram and when network models are exchanged, as defined in the IEC 61970 part 452 and IEC 61968 part 13 standards, it is desirable to be able to exchange these layouts. This paper will discuss the CIM Graphics Exchange format that extends the standard CIM network model to include this schematic layout information and utilize existing IEC standards (61970-552) for encoding and transmission.
Power and Energy Society General Meeting, 2010 IEEE
McMorran, A.W. and deVos, A.N. and Britton, J.P. and Ault, G.W.
As the scope of the Common Information Model grows from its origins in transmission network model exchange to cover distribution, dynamics and market data, the amount of data transferred is correspondingly increasing and the use of a single XML file for each exchange has become impractical. There is a requirement to reduce the size of the exchanged data while retaining the separation of data according to its type and this paper proposes a standard using a combination of multiple data sets organized by type; individual file header data; group descriptors and a ZIP containment format to create a compressed, modular data exchange format that utilizes existing IEC standards, retains data modularity and reduces the size of the exchanged file.