Vries, Thijs, de (2026) Modeling and Simulation of Frequency Dynamics in Inverter-Based Microgrids. Integration Project, Industrial Engineering and Management.
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Abstract
With the increasing penetration of renewable energy sources, the natural inertia traditionally provided by synchronous generators has significantly decreased. Hence, maintaining stable frequency dynamics in power grids has become a challenge. This project investigates and compares the frequency behavior of the three grid-forming control strategies: traditional Droop Control and Virtual Synchronous Machine (VSM), and the newly emerging Matching Control. A detailed Simulink model of an islanded microgrid with two inverters is developed, including realistic transmission lines and LCL filters. Each control strategy is implemented in this exact model to ensure a fair comparison under identical operating conditions. At t = 0.1 s a load increase is introduced. The system frequency is measured using a phaselocked loop (PLL) synchronized to the three-phase point of common coupling (PCC) voltage V0abc. Using this measurement, the system response is analyzed based on frequency, active and reactive power, RMS voltage regulation, and voltage and current waveforms in the abc reference frame. The simulation results show that Droop Control and VSM Control have similar frequency responses characterized by oscillatory transient behavior and steady-state frequency deviation. Matching Control shows a very different dynamic behavior, with reduced oscillations and smoother power response.
| Item Type: | Thesis (Integration Project) |
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| Supervisor name: | Cucuzzella, M. and Cai, X. |
| Degree programme: | Industrial Engineering and Management |
| Thesis type: | Integration Project |
| Language: | English |
| Date Deposited: | 03 Feb 2026 09:25 |
| Last Modified: | 03 Feb 2026 09:25 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/37223 |
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