| Title |
Virtual Admittance PLL Structure for Grid-forming Power Converters in Microgrids |
| Authors |
Tarraso A. , Candela J.I. , LAI, NGOC BAO, BALTAS, NICHOLAS-GREGORY, RODRÍGUEZ CORTÉS, PEDRO |
| External publication |
No |
| Means |
ECCE - IEEE Energy Convers. Congr. Expo. |
| Scope |
Capítulo de un Libro |
| Nature |
Científica |
| Web |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097185947&doi=10.1109%2fECCE44975.2020.9235629&partnerID=40&md5=2b171d062c5a3bda26983e38e38b4add |
| Publication date |
01/01/2020 |
| Scopus Id |
2-s2.0-85097185947 |
| DOI |
10.1109/ECCE44975.2020.9235629 |
| Abstract |
Synchronization plays a fundamental role in connecting power electronic converters with the grid. Conventionally, the synchronous reference frame phase-locked loop (SRF-PLL) has been widely used to estimate the grid phase angle. Though SRF-PLL is effective under normal grid voltage conditions, its performance degrades drastically under weak grid conditions. This paper presents a control strategy for current controller of grid-connected power converters that contributes in the reduction of the negative effects of SRF-PLL during grid disturbances. The main control concept is based on virtual admittance. This approach is capable of operating effectively power converters when connected to weak grids and permit grid-forming operation. Simulation and experimental results are provided to validate the proposed controller. © 2020 IEEE. |
| Keywords |
Controllers; Electric power transmission networks; Energy conversion; Microgrids; Phase locked loops; Power converters; Control concept; Control strategies; Current controller; Grid disturbance; Grid- |
| Universidad Loyola members |
|
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