A novel surface-cluster approach towards transient modeling of hydro-turbine governing systems in the start-up process

作者：Zhang, Hao; Chen, Diyi^*; Guo, Pengcheng; Luo, Xingqi; George, Aggidis

来源：Energy Conversion and Management, 2018, 165: 861-868.

DOI：10.1016/j.enconman.2018.03.097

• Hydro-turbine governing system
• Start-up process
• Transient modeling
• Dynamics
• Surface-cluster method

Transient process, an essential condition for the operation of the hydro-turbine governing system, is critical for the safety and stability of a hydropower station. This research focuses on the transient modeling and dynamic analysis of the hydro-turbine governing system in the start-up process. A novel approach is developed to establish the dynamic model of the hydro-turbine governing system in transient process. The flow equation and torque equation were improved to reflect the dramatic changes of system parameters during the start-up process. As a pioneering work, the effect of guide vane opening law on the dynamic characteristics of the hydro-turbine governing system in the start-up process was investigated by numerical simulations. The results of this research can promote the development of transient modeling and performance improvement of hydro-turbine governing systems in transient process.

• 出版日期2018-6-1
• 单位中国水利水电科学研究院; 西北农林科技大学; 西安理工大学