Application of New Stability Criterion on Hydropower Generator Control System

摘要：

The turbine-generator set is a complex control system with nonlinear and strong coupling characteristics. It is very important to make sure that the turbine-generator set work stably. Reference 1 and 2 presented a new stability criterion based on numerical computing and simulation, which could solve this problem. The New Stability Criterion expanded the sufficient conditions of Lyapunovs direct method into necessary and sufficient conditions for local stability. It provides a standard and simple way to select the energy-like function. Some refinements of the new criterion are made in this paper. And this paper applies the new criterion on hydropower generating control system stability analysis. Foziling Hydropower Generating Station in Anhui province is selected as the application example. Modeling and stability analysis based on numerical calculation and system simulation for this hydropower station is carried out on the software platform of MATLAB/Simulink. The practical operation process proved that the new stability criterion is valid.

关键词： hydropower generating station stability criteria simulation.

作者: Zhang Xiaojiang Wang Huaqiang

作者单位: School of Electrical Engineering and Automation,Hefei University of Technology,Hefei 230009,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 1468-1471

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）