XVIII IWRA World Water Congress Beijing China 2023
Sub-theme 6: Innovation for Water Governance and Management
Author(s): Boran Zhu, Di Zhang, Junqiang Lin, Yi Liu, Qidong Peng, Yufeng Ren
Boran Zhu1, Di Zhang1, Junqiang Lin1, Yi Liu1, Qidong Peng1, Yufeng Ren2
1.China Institute of Water Resources and Hydropower Research
2.Hubei Key Laboratory of Intelligent Yangtze and Hydroelectric Science
Poster: PDFAbstractObjectives
- Build a simulation model of cascade hydropower stations that can effectively reflect the dynamic characteristics of the internal operation of the system.
- Propose a multi risk assessment index system for cascade hydropower stations that can reflect both the possibility of risk occurrence and the consequences of risk accidents;
- Exploring the interactions between multi risks of cascade hydropower stations;
Conclusions
- The SD model can accurately simulate the operation process of cascade hydropower stations, and can be used to analyze the dynamic characteristics of system operation. Compared with other general models, the OSD model has the advantages of high intelligibility, operability and expansibility.
- The constructed index system can reflect the multi risk status of cascade hydropower stations and has a unified dimension, making it suitable for risk assessment methods involving reliability, resilience and vulnerability.
- There is a contradiction between the reliability and vulnerability of the power risk of cascade hydropower stations. Improving the reliability of power risk under insufficient inflow conditions could increase the power generation deficit and shipping risk.
- Controlling ecological risk can help reduce power risk and shipping risk. Therefore, it is suggested to use the ecological outflow for minimum outflow control in the operation of hydropower stations.