Capacitor State Monitoring of MMC Photovoltaic Grid Connected Inverter Based on Capacitance Voltage Difference
Abstract Due to the high degree of modularity and high energy transmission efficiency, MMC is widely used in the field of photovoltaic grid connection. This paper focuses on the abnormal fluctuations of capacitor voltage caused by capacitor aging in MMC submodule, and comes up with a capacitance monitoring method based on the voltage fluctuation difference of submodule capacitors. The validity of the raised method is validated through simulation and experiments.
Authors
- Hui‐Jie Sun (ORCID: https://orcid.org/0000-0003-2794-0871)
- Meiyi Zhou (ORCID: https://orcid.org/0000-0002-1010-1636)
- Xiaoxuan Guo (ORCID: https://orcid.org/0000-0003-4754-2467)
Institutions
- Electric Power Research Institute (US)
- Power Grid Corporation (India) (IN)
Publication Details
- Journal
- Journal of Physics Conference Series
- Published
- 2024-10-01
- DOI
- https://doi.org/10.1088/1742-6596/2861/1/012006
- Primary Topic
- HVDC Systems and Fault Protection
- Type
- article
- Field-Weighted Citation Impact
- 0.00