Changes in weather and natural conditions have led to the emergence of new energy production methods. Once predominant, synchronous generators now share the space with pulsating green energy sources such as photovoltaic solar energy, wind energy, etc. To integrate these new sources into the power grid, electronic converters are used, but they lack the inertia of electromechanical systems. This absence of overall inertia can cause instability issues and even widespread power outages. Research has been undertaken to design inverter control technologies aimed at overcoming this limitation. The simulation and evaluation of a Virtual Synchronous Generator (VSG) model, aiming to introduce artificial inertia, constitute the primary objective of this thesis. After reviewing existing documentation, a VSG model was developed and evaluated in isolated mode using Matlab/Simulink software. The results obtained prove that controlling an inverter with VSG control mitigates system frequency variations, making it more stable in the face of disturbances (various sudden overloads). Additionally, the VSG was integrated into a power grid supplying residential homes. The VSG control also demonstrated its ability to compensate for voltage variations due to disturbances (overloads, load shedding, and injection of active and reactive current) and to maintain the stability of consumer voltages. Finally, calculations were made to justify the improvement brought by VSG control on residential voltages following the injection of active and reactive current.
| Date | 18 Oct 2024 |
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| Original language | French |
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| Awarding Institution | - École de technologie supérieure
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| Supervisor | Handy Fortin Blanchette (Supervisor) |
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Rahmouni, C. (Author),
Fortin Blanchette (Supervisor),
18 Oct 2024Student thesis: Master's thesis › Master in Engineering: Electrical Engineering