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IPSA (software)

From EverybodyWiki Bios & Wiki





IPSA
IPSA Logo (2021)
IPSA Logo (2021)
Original author(s) UMIST
Developer(s)TNEI Services Ltd.
Initial release1974
Stable release
v2.9.0 / March 2021
Written inC++, Python
Engine
    Operating systemWindows, Linux
    Platformx86, x86-64
    Available inEnglish
    LicenseSentinel LDK
    Websitehttps://www.ipsa-power.com

    Search IPSA (software) on Amazon.

    Interactive Power Systems Analysis or IPSA is a software package developed for various power systems calculations. Originally being developed in 1974 in University of Manchester Institute of Science and Technology, Manchester, UK. It is one of the original programming resources that allowed for sophisticated results of load flow and fault level calculations, allowing for power systems design and operation applications. Since its inception, IPSA has been developed to perform a number of other calculations concurrent with its power flow and fault current calculations. This includes overcurrent protection modelling, transients analysis and harmonic penetration...[1]

    History

    Starting as a Ph.D project back in 1974 coming out of UMIST, IPSA was the first power systems analysis software to be implemented with a fully functioning GUI. Its reputation grew when it was ported onto the mainframe at SP Manweb (formerly MANWEB). The transient stability functionality was added in 1978. After becoming a commerical product in 1986, IPSA went through several iterations until Ipsa 1.0 was released in 2000. Whilst the main engine of the code remained dependent on Fortran, after the main release in 2000 the UI (user interface) was upgraded to utilise the Qt framework which allows for easy, cross-platform interfacing.

    Photo showing the building Bainbridge House in M1 Manchester where the company TNEI Services Ltd. are based (the developers of IPSA)
    Bainbridge House — home of TNEI Services Ltd. and development of IPSA

    In 2009, the beta version of IPSA 2.0 was released and over the next decade, the software underwent many changes and additional features were added into the program. IPSA has been utilised in many large projects, such as Flexible Networks from 2015, undertaken by Scottish Power Energy Networks in efforts to find spare capacity to remove the need for heavily upgraded networks[2]. Similarly, from 2011 to 2015, IPSA was being used in Project FALCON (Flexible Approaches for Low Carbon Optimised Networks) designed by the network operator WPD. In this project, the aim was to test how 11kV [3] networks were practically implemented when considering a reduction of carbon emissions. IPSA 2 made the backbone of the simulation models for this project, utilising the unbalanced voltage calculations and for battery/energy storage modelling[4]. Since the software has been developed, maintained and used since 1974, IPSA has been used by a number of distribution network operators (DNOs) and other notable clients. IPSA team developers pioneered the fast-decoupled Newton-Raphson implementation for power-flow calculations [5] and with regimented memory allocations owing to the original code development in Fortran, the software has been through "extensive testing and validation against real life results to ensure accurate modelling results" [6]

    In 2021, TNEI Services Ltd. released the latest version of the IPSA software package: IPSA 2.9.0. This latest package included the addition of a DC load flow module, the introduction of a new Sentinel licensing system (deployed by Gemalto, owned by Thales and a wide range of modifications that enhance the User experience (UX).

    Features

    As a tool for power systems analysis, IPSA offers a wide variety of features that the user can utilise for their studies. Not only are there various modules that have been implemented within IPSA to give the user a wide variety of customisation options, but there have been many modifications to the UX which make the interface as easy to use as possible.

    Modules

    The power systems analysis within IPSA relies on a variety of implementation programs that all contribute to a full and accessible software package. The non-exhaustive features available to the user are:

    Animated diagram showing a refinery-like network with transformers, lines, generators and loads. The animation shows red and blue flow icons that denote where the power is flowing to and from with their size representing the size of the flow.
    Example of refinery network diagram running load flow with IPSA. Note that the active power flow (red) and reactive power flow (blue) are both represented by the animations on this diagram. The size of the respective moving icons represent how large the flow is from one part of the diagram to the next.

    User interface

    Within the main window of the program, there are lots of methods that can enhance the client's experience using IPSA, thanks to the flexible Qt framework. IPSA is fully compatible with multiple instances of the program open, accommodates custom and tailored databases as well as basic single line diagrams. Furthermore, a rudimentary geographical map scaling can enhance the physical feel of the network against an actual location, to improve implementation and contingency. Seeded diagram programming allows for islands and diagrams within diagrams as well. The user can also customise the outputs of their results within the Analysis and Results windows as well. These results can also be filtered by the user. The scripting capabilities of IPSA even allow for seamless interfacing between itself and DINIS, AutoCAD and many more databases produced by other softwares.

    Recent projects

    First designed in 2003, the largest offshore wind and demonstration facility in Scotland was commissioned in 2018: The European Offshore Wind Deployment Centre. In 2019, this became a 'clean energy laboratory' where the most optimum power distribution for 'the equivalent of 70% of Aberdeen's domestic energy demand' is being analysed and optimised. In 2019, a full study was carried out to assess the reactive capability of the 66kV-connected wind-farm using IPSA and other noteworthy PSA packages[7]

    Many TNEI consultants as well as members of WSP UK were involved in a series of studies that were highlighted at the CIRED conference in Madrid, 2019. The studies here involved a number of additional challenges that were investigated using the IPSA software framework to ultimately check the efficacy of smart meters in low-voltage networks and re-evaluation of the inaccuracies encumbered from current 'top-down' loss modelling. [8][9]. These were part of a wider series of studies known as the Smart Network Design Methodologies, pioneered by Northern Powergrid and SP Energy Networks with the work of engineers from consultancies such as TNEI Services Ltd. For example, a study between TNEI and NPg identified solutions for non-holistical issues arising between the interfaces of EHV, HV and LV distribution networks [10]. All of these studies relied on using IPSA load flow, unbalanced and harmonic modules.

    References

    1. ↑ Efthymiadis, A.E.; Ravenscroft, F. (1992). "Interactive power system analysis for design and operations applications". IEE Colloquium on Interactive Graphic Power System Analysis Programs.
    2. ↑ Higgins, Charlotte (2012–2015). "Flexible Networks: IPSA Development" (PDF). SP Energy Networks. Scottish Power Energy Networks. Retrieved 1 November 2021.
    3. ↑ In the United Kingdom, 'high-voltage' (HV) networks
    4. ↑ "Project FALCON". Western Power Distribution: What is FALCON?. 2011–2015. Retrieved 1 November 2021.
    5. ↑ 5.0 5.1 Stott, B.; Alsac, O. (May 1974). "Fast Decoupled Load Flow". IEEE Transactions on Power Apparatus and Systems. PAS-93 (3): 859–869. Bibcode:1974ITPAS..93..859S. doi:10.1109/tpas.1974.293985. ISSN 0018-9510.
    6. ↑ Ringkjøb, Hans-Kristian; Haugan, Peter M.; Solbrekke, Ida Marie (November 2018). "A review of modelling tools for energy and electricity systems with large shares of variable renewables". Renewable and Sustainable Energy Reviews. 96: 440–459. doi:10.1016/j.rser.2018.08.002. Retrieved 1 November 2021. Unknown parameter |s2cid= ignored (help)
    7. ↑ Aggarwal, Rajat; McVey, Lauren (31 October 2019). "Clean Energy Laboratory". T&D World. Retrieved 1 November 2021.
    8. ↑ Chakravorty, Diptargha; Higgins, Charlotte; Edwards, Gruffudd; McFadzean, Gordon; Shillitoe, Francis; Creighton, Alan (3 June 2019). Novel Analysis Techniques for LV Network Planning using Smart Meter Data. CIRED 2019. Madrid, Spain: AIM. ISBN 978-2-9602415-0-1.
    9. ↑ Bryans, Russell; Mantle, Wendy; Jones, Matthew; Higgins, Charlotte; Chakravorty, Diptargha; Bebbington, Malcolm (3 June 2019). Advanced Modelling of Complex Networks to Reduce Losses. CIRED 2019. Madrid, Spain: AIM. ISBN 978-2-9602415-0-1.
    10. ↑ George, Gorby. "Multi-Voltage Level Novel Analysis" (PDF). Northern Power Grid. Retrieved 1 November 2021.

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