Dynamic analysis and modelling of a Francis hydro-energy generation system in the load rejection transient

作者：Li, Huanhuan; Chen, Diyi^*; Zhang, Xinguang; Wu, Yonghong

来源：IET Renewable Power Generation, 2016, 10(8): 1140-1148.

DOI：10.1049/iet-rpg.2015.0579

• hydroelectric power stations
• hydraulic turbines
• bifurcation
• Francis hydroenergy generation system modelling
• hydropower station
• time waveform
• bifurcation diagram
• hydroturbine dynamic transfer coefficient
• generator nonlinear characteristics
• penstock elastic water hammer impact
• nonlinear mathematical model
• load rejection transient
• Francis hydroenergy generation system dynamic analysis

In this study, the authors propose a novel non-linear mathematical model of a hydro-energy generation system in the load rejection transient considering the elastic water hammer-impact of the penstock and the non-linear characteristics of the generator. More specifically, six dynamic transfer coefficients of the hydro-turbine are introduced to the generation system. Furthermore, the dynamic behaviours of the system are investigated using bifurcation diagrams and time waveforms from the point of engineering. Finally, these methods and analytical results will supply some principles for designing and running a hydropower station.

• 出版日期2016-9
• 单位中国水利水电科学研究院; 西北农林科技大学