摘要
根据汽轮发电机组轴系的简化模型 ,对该系统的平衡位置局部稳定性和分岔进行了定性分析 ,指出对一切正的参数 ,在参数空间不存在 Hopf分岔。对稳定平衡点 ,还用 Lyapunov函数对稳定域进行了估计。最后 ,用仿真算例说明了所得结论的有效性及所得稳定域的精确性。
The local stability and bifurcation of equilibrium points of turbine-generator including the shaft torsional oscillations are analyzed. It is obtained that there is no Hopf bifurcation for all the positive parameters in the parameter space. Furthermore, the stable operation region of the generator is estimated by using Lyapunov function. Finally, an example is given to show the effectiveness of the obtained conclusions and accuracy of estimated stable region. This project is supported by National Key Basic Research Special Fund of China (No. G1998020307).
出处
《电力系统自动化》
EI
CSCD
北大核心
2001年第4期6-10,共5页
Automation of Electric Power Systems
基金
国家重点基础研究专项经费资助!项目 (G19980 2 0 30 7)
