Short-circuit analysis of grid-connected PV power plants considering inverter limits
This paper presents a short-circuit analysis of grid-connected photovoltaic (PV) power plants, which contain several Voltage Source Converters (VSCs) that regulate and convert the power from DC to AC networks. A different methodology has been adopted in this paper for short-circuit calculation. In p...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/394246 |
| Acceso en línea: | https://hdl.handle.net/2117/394246 https://dx.doi.org/10.1016/j.ijepes.2023.109045 |
| Access Level: | acceso abierto |
| Palabra clave: | Photovoltaic power generation PV power plants Short-circuit calculation Voltage source converter Current-saturation Energia solar fotovoltaica Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica |
| Sumario: | This paper presents a short-circuit analysis of grid-connected photovoltaic (PV) power plants, which contain several Voltage Source Converters (VSCs) that regulate and convert the power from DC to AC networks. A different methodology has been adopted in this paper for short-circuit calculation. In particular, an element-based formulation is adopted to model the studied system including the grid-support control and various current-saturation states of PV inverters during the fault. An iterative approach is presented to identify the short-circuit equilibrium point that satisfies all converters’ operation limits efficiently. Case studies have been carried out on PV power plants with different numbers of inverters. The influence of the inverter grid-support operation, the main grid strength and the MV collection grid topology on system steady-state performance during the fault has been analyzed. The obtained short-circuit equilibrium points have been validated through dynamic simulations. |
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