Stability analysis of systems with high VSC penetration: where is the limit?
The paper addresses the stability of modern voltage-source-converter-dominated power systems, which are experiencing a progressive phase-out of conventional generation. An essential system model is used to capture the fundamental system dynamics, to conduct a thorough mathematical analysis and under...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| 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:2117/189033 |
| Acceso en línea: | https://hdl.handle.net/2117/189033 https://dx.doi.org/10.1109/TPWRD.2019.2959541 |
| Access Level: | acceso abierto |
| Palabra clave: | Electric current converters Synchronous generator Voltage source converter (VSC) VSC-dominated power systems Convertidors de corrent elèctric Àrees temàtiques de la UPC::Enginyeria elèctrica |
| Sumario: | The paper addresses the stability of modern voltage-source-converter-dominated power systems, which are experiencing a progressive phase-out of conventional generation. An essential system model is used to capture the fundamental system dynamics, to conduct a thorough mathematical analysis and understand the principles governing network stability in converter-dominated power systems. A detailed analysis is developed to identify the stability limits of this system when voltage source converters operate in grid-following mode. A complete mathematical linear model including the dynamics of the network elements is used to identify these stability limits. Based on this model, a detailed assessment of the influence that the voltage source converter controllers have on the system stability is performed to identify potential stability and reveal the main mechanisms of interaction. Then, a study to identify the minimum synchronous generation to ensure system stability is developed, including analytical expressions of some critical system poles. The mathematical results obtained are validated with a complete non-linear simulation model of the system. |
|---|