RMS Modeling of Grid-Forming Power Electronics for Renewable Energy Power Plant Integration and Classical Power System Stability Studies
Studenteropgave: Speciale (inkl. HD afgangsprojekt)
- Theyagarajan Thangamani
- Ibrahim Kucuk
4. semester, Energiteknik, Kandidat (Kandidatuddannelse)
The share of the renewable energy sources (RESs) in electrical power system is continuously increasing. As a result, the conventional power plants, which mostly utilize large synchronous generators (SGs), are taken out from the operation and this leads to power system stability concerns. The conventional grid-following control strategies for RESs do not contribute to the stability. On the other hand, grid-forming (GF) controls acts as a voltage source in a system, and can perform an operation similar to SGs. In this study an RMS model of GF converter is built. The GF converter model is implemented to a simple power system and fed by a renewable energy source. The results showed that a GF converter can operate like a SG and it can perform load sharing based on its implemented droop curve. In addition, two adaptive droop control methods are introduced for frequency control in the power system. A battery storage system is proposed to support DC voltage during immediate power demands. The study is performed in DIgSILENT PowerFactory.
Specialiseringsretning | Vindmølleteknologi |
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Sprog | Engelsk |
Udgivelsesdato | maj 2020 |
Antal sider | 74 |
Ekstern samarbejdspartner | Energinet SOV Ingeniør - Netanalyse Laurids Dall ldl@energinet.dk Informantgruppe |