PhD Thesis – “Power system EMT-TS simulation” F/M
SUPERGRID INSTITUTE
Villeurbanne, FR
il y a 15h

SuperGrid Institute recruits a PhD F / M

Development of parallel numerical methods for power system EMT-TS co-simulation

The Institute for Energy Transition (ITE) SuperGrid isa collaborative research platform in the field of low-carbon energy, bringingtogether the expertise of industry and public research in the logic ofpublic-

private co-investment and close cooperation between all stakeholders ofthe sector.

The instituteaims to develop technologies for the Supergrid that is the future electricitytransmission network, using direct current and alternating current at very highvoltages (in the order of one million volts), designed to transport large-

  • scaleenergy from renewable sources remote from load centers, a significant portionof which are offshore, which will be in connection with flexible storageresources;
  • to manage the intermittent nature of renewable energy; and also, toensure the stability and security of the network.

    General context

    Most program Supergrids Architecture and Systemresearch activities are based on power system simulation. Therefore, program Supergrids Architecture and Systemability to develop advanced research in the field of power transmission systemrequires to use adequate power system simulation models and tools, which inmany instances do not exist on the shelve, and must be developed, implementedand validated as part of the research process.

    Program Architecture and Systemis focused on studying HVDC grids and hybrid AC-DC grids. Simulation of suchsystem is complex, since HVDC grids are based on complex power electronicconverters and their control systems, which accurate modelling isn’t simple.

    Supergrids modelling and simulation group objective is todevelop accurate simulation models and platform to study HVDC grids.

    Simulationplatform scope covers both off-line and real-time simulation. In one hand, adedicated real-time simulation laboratory has been created to support theresearch activities of the other teams.

    In the other hand, new off-line simulationenvironments are developed to cover a complex requirement : mix wide AC grid andfast response DC grid.

    Objectives

    A trend inthe development of power grid simulation is the introduction of advancednumerical methods including high performance computing to deal withincreasingly complex operational situations and / or design or protectionstudies due to the introduction of renewable energy sources in the networks(wind turbines, photovoltaic panels, ).

    Mathematicalmodelling of an electrical network can be carried out according to thecharacteristic times of the dynamics that are present.

    When the dynamics areslow, we can simplify the system of algebraic differential equations byimposing the form of the solution (dynamic phasors, Transient Stability simulation)allowing the temporal integration solver to use a large time step (of the orderof the second).

    Conversely, when the dynamics are fast, the form of thesolution cannot be simplified and the solver must use small time steps (of theorder of us to ns) to solve the Algebraic Differential Equation system (Electro-

    MagneticTransient simulation).

    The objective of this thesis is the designand implementation of parallel numerical methods allowing the coupling of TSand EMT simulations within an electrical network in order to take advantage ofthe benefits of each model.

    Numerical developments will have to interface withOpenModelica environments for network design (Dynawo).

    Missions

  • State of the art : Mathematical modelling techniques for thesimulation of electrical networks in the time domain (frequency / frequency-
  • time co-simulation),Parallel scientific libraries integratingmethods for solving DAE systems (OpenModelica / Sundials),Representation formats of electricalnetwork models (CIM, ).

  • Developments / studies : Development of the simulation engine basedon object-oriented programming integrating parallel scientific libraries,Study of the most appropriate numericalsolvers according to criteria of precision, stability, computation time, andscalability,Specifications of the software componentsdevelopment of the component library,Definition of library interfaces forcompatibility with commercial simulation software components,Development of test cases for validationand verification of software developments.
  • Profile of the candidate

    The candidate must have a solid knowledge ofapplied mathematics (DAE numerical simulation, scientific parallel libraries)and object-

    oriented software development.

    Experiences in system modelling(OpenModelica typically) and basic knowledge of grid, electrical systems,electronics and automatic would be positively considered.

    The candidateshould be capable of working autonomously but also be a good team member. Fluencyin English is welcome.

    Other informations

  • Workplace : ITE SuperGrid Institute,Villeurbanne (69)
  • PhD period : Oct. 2019 Sep. 2022, 3 years
  • PhD supervisor : Pr. Damien Tromeur-Dervout, Université de Lyon, Université Lyon 1,CNRS, UMR5208 Institut Camille Jordan
  • Contact : laurent.chedot supergrid-institute.com
  • Applications to be submitted by the end of June2019. The application has to include CV, motivation letter, transcript ofacademic qualifications and recommendation letter.

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