5 achievement(s) found

A study of the modelling of a microgrid and its Power Management System

This project involved designing an islanded system supplied by a collection of multiple renewable electrical energy sources . The inhomogeneous character of the sources (wind turbines, fuel cells, diesel generators, etc.) required a suitable control system to be defined. [...]

Maintaining in Operational Condition the MOSARE simulation modelling platform

The MOSARE project was developed by CAPSIM in response to the following needs:

• To have a tool available which can increase the technical expertise on new programmes,
• To study the impact of new technologies proposed by industrial companies,
• To produce expert reports on the fleet already in service.

[...]

Creation of a tool for calculating the impedance of electric railway lines

Over the past few years, technological developments in power electronics have allowed locomotives to be powered via a new generation of converters. One consequence of the arrival of this new equipment has been the appearance of harmonic currents which circulate in electric railway lines at harmonic values which had not previously been present.
It is therefore necessary to be able to ascertain whether or not, in certain configurations, it was possible for these currents to create undesirable overvoltage incidents, leading to cuts in the power supply and possibly damaging equipment. [...]

Realization of a simulation program for the electricity supply grid to a tokamak

ITER is a very large-scale international scientific project for demonstrating the scientific and technological feasibility of electricity production using energy from nuclear fusion and leading to its industrial and commercial production.
With this goal, a magnetic plasma confinement system called a tokamak has been constructed using superconducting coils. These coils are supplied on a 66 kV and 22 kV distribution grid via AC/DC thyristor converters (12 pulses). This grid is supplied by three 3-winding transformers, 400kV/66kV/22kV, allowing it to be connected to the RTD grid on a dedicated 400 kV line.

The power consumption of the coils fluctuates greatly during a plasma shot and, in particular, during its initiation and extinction. The impact of these power fluctuations on the grid needed to be estimated in order to validate adherence to the connection constraints of the ITER grid to the supplier distribution grid including limits for active power, reactive power and voltage levels of the various buses.
Hence, the requirement expressed by ITER was to obtain a tool which could simulate the voltage plan of the grid and the power flows throughout the duration of a plasma shot scenario. [...]

Tool enabling the conception and validation of the control of hybrid electrical smartgrids

The hybridation of Diesel power stations with renewable energy sources is interesting in the case of isolated electrical grids which are very far from any transmission grid.
The aim of this project was to implement hybridation of power stations feeding towns isolated from any electrical grid (micro-grid in this case) in Oriental Siberia and in the Kamchatka peninsula (in Russia) via the addition of photovoltaic power stations, wind farms, and energy storage systems.
Indeed, the conditions of extreme cold and high supplying fuel distances to these areas may lead to high electricity production costs, which could be significantly decreased by means of hybridation.
The network user of these isolated electrical grid wished therefore to:

• Implement an energy management strategy so as to directly control the equipment of the hybrid power stations,
• Create a simulation tool allowing the validation of the optimal operation of the power stations as well as the optimisation of the equipment sizing.

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