Hydro turbine governor's power control of hydroelectric unit with sloping ceiling tailrace tunnel

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Fu, Liang^1 ; Wu, Changli^1 ; Tang, Weiping^1

No.79 Shuidian Street Yuhua Dist., ChangSha

410007, China^1

关键词: Hydroelectric units;    Hydroturbine governor;    Parameter measurement;    Power regulation;    Primary frequency regulation;    Simulation model;    Small fluctuation;    Transient process;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/4/042009/pdf
DOI  :  10.1088/1755-1315/121/4/042009

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The primary frequency regulation and load regulation transient process when the hydro turbine governor is under the power mode of hydropower unit with sloping ceiling tailrace are analysed by field test and numerical simulation in this paper. A simulation method based on "three-zone model" to simulate small fluctuation transient process of the sloping ceiling tailrace is proposed. The simulation model of hydraulic turbine governor power mode is established by governor's PLC program identification and parameter measurement, and the simulation model is verified by the test. The slow-fast-slow "three-stage regulation" method which can improve the dynamic quality of hydro turbine governor power mode is proposed. The power regulation strategy and parameters are optimized by numerical simulation, the performance of primary frequency regulation and load regulation transient process when the hydro turbine governor is under power mode are improved significantly.