Impedance-Based Modelling of Hybrid AC/DC Grids With Synchronous Generator for Interaction Study and Dynamic Improvement
Hybrid AC/DC grids are increasingly been seen as the most important network structure for future transmission infrastructures. An emerging challenge to such grids is the constant interaction between various components in the system. Interactions could occur in many intricate forms including between...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| 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:2117/178934 |
| Acceso en línea: | https://hdl.handle.net/2117/178934 https://dx.doi.org/10.1016/j.epsr.2019.106086 |
| Access Level: | acceso abierto |
| Palabra clave: | Electrical engineering VSC synchronous generator impedance-based analysis interactions HVDC Hybrid AC/DC grid Enginyeria elèctrica Àrees temàtiques de la UPC::Enginyeria elèctrica |
| Sumario: | Hybrid AC/DC grids are increasingly been seen as the most important network structure for future transmission infrastructures. An emerging challenge to such grids is the constant interaction between various components in the system. Interactions could occur in many intricate forms including between and within the AC and DC subnetworks. However, considering the complexities involved, methods for detection that are intuitive, compact, and relatively straightforward to apply are lacking. In this paper, device-level closed-loop impedance models of subsystems in a hybrid AC/DC grid are extended compactly to subnetwork equivalents in the form of matrices. Then, interaction analysis between a voltage source converter (VSC) interconnected on both sides, and a synchronous generator with excitation control is carried out as a case study to highlight potentially detrimental interactions. The analysis is carried out in the frequency domain and validated with a nonlinear time domain simulations in MATLAB/SIMULINK. |
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