Multi-objective optimization of a hydro-wind-photovoltaic power complementary plant with a vibration avoidance strategy
| Autor: | Poul Alberg Østergaard, Hualin Xiong, Mònica Egusquiza, Juan I. Pérez-Díaz, Xingqi Luo, Guoxiu Sun, Edoardo Patelli, Eduard Egusquiza, Hongjiang Duan, Beibei Xu, Diyi Chen |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Centre de Diagnòstic Industrial i Fluidodinàmica, Universitat Politècnica de Catalunya. Departament d'Enginyeria de Projectes i de la Construcció, Universitat Politècnica de Catalunya. CDIF - Centre de Diagnòstic Industrial i Fluidodinàmica |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Power station
Vibration zone Computer science Hydro-wind-photovoltaic Management Monitoring Policy and Law Water-power Multi-objective optimization Automotive engineering Energia hidràulica Centrals hidroelèctrique Hydropower Energies::Energia hidràulica::Centrals hidràuliques [Àrees temàtiques de la UPC] Wind power business.industry Mechanical Engineering Photovoltaic system Building and Construction Coordinated optimized operation Power (physics) Vibration General Energy Electricity generation Hydroelectric power-plants Hydraulic machinery business Màquines hidràuliques Enginyeria mecànica::Mecànica de fluids [Àrees temàtiques de la UPC] |
| Zdroj: | Xiong, H, Egusquiza, M, Østergaard, P A, Pérez-Díaz, J I, Sun, G, Egusquiza, E, Patelli, E, Xu, B, Duan, H, Chen, D & Luo, X 2021, ' Multi-objective optimization of a hydro-wind-photovoltaic power complementary plant with a vibration avoidance strategy ', Applied Energy, vol. 301, 117459 . https://doi.org/10.1016/j.apenergy.2021.117459 UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| DOI: | 10.1016/j.apenergy.2021.117459 |
| Popis: | Hydropower has the advantages of quickly responding to load variability, which overcomes the unpredictable and unstable variabilities of solar and wind power. Therefore, such power generation can be combined into a hydro-wind-photovoltaic complementary plant (HWPCP). However, hydropower units running at partial load are prone to suffer from hydraulic instabilities generated by a cavitating vortex rope, which may lead to power swings and high vibrations. Operation in these vibration zones may affect the operation and ultimately cause structural damage and affect the power plant. The problem of avoiding running hydropower units in the vibration zones is effectively addressed in this study. This is achieved by adopting a vibration avoidance strategy to determine a rational power distribution scheme for hydropower units. Multi-objective optimization is performed to maximize power generation, minimize output power fluctuations, and minimize the deviation between the power generation and the planned output. The power distribution strategies of hydropower units under 12 scenarios, composed of different inflow and weather conditions, are analyzed. The results indicate that the vibration avoidance strategy effectively avoids the operation of hydropower units in the vibration zones and ensures the operation of hydropower units in the non-vibration zone for more than 99.31% of the operation time. This study contributes to the identification of the relationship between conflicting objectives and provides operational strategies for the safe and stable operation of hydropower units. Hydropower has the advantages of quickly responding to load variability, which overcomes the unpredictable and unstable variabilities of solar and wind power. Therefore, such power generation can be combined into a hydro-wind-photovoltaic complementary plant (HWPCP). However, hydropower units running at partial load are prone to suffer from hydraulic instabilities generated by a cavitating vortex rope, which may lead to power swings and high vibrations. Operation in these vibration zones may affect the operation and ultimately cause structural damage and affect the power plant. The problem of avoiding running hydropower units in the vibration zones is effectively addressed in this study. This is achieved by adopting a vibration avoidance strategy to determine a rational power distribution scheme for hydropower units. Multi-objective optimization is performed to maximize power generation, minimize output power fluctuations, and minimize the deviation between the power generation and the planned output. The power distribution strategies of hydropower units under 12 scenarios, composed of different inflow and weather conditions, are analyzed. The results indicate that the vibration avoidance strategy effectively avoids the operation of hydropower units in the vibration zones and ensures the operation of hydropower units in the non-vibration zone for more than 99.31% of the operation time. This study contributes to the identification of the relationship between conflicting objectives and provides operational strategies for the safe and stable operation of hydropower units. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|