摘要
水轮机调节系统中采用模糊控制时,应考虑编制模糊控制表中的非线性特性对系统动态响应的影响。文章在快速富里哀变换(FFT)的基础上,应用描述函数法对此问题进行了研究,指出了系统出现持续振荡(极限环)的可能性。文中理论分析和仿真计算结果表明这种分析方法是可行的。
The authors propose that applying Fuzzy Control to the hydroturbine regulation system, the nonlinear property whichis caused by the designed Fuzzy control schedule will affect the response behavior of the system. Based on the Fast Fourier Transform (FFT), this problem is studied by means of describing function method and the possibility of the existence of limiting circle, in which appears the self oscillation of the system, is pointed out. The theoritecal analysis and the results of simulation express that the adopted method is reasonable.
出处
《武汉水利电力大学学报》
CSCD
1993年第3期245-249,共5页
Engineering Journal of Wuhan University
关键词
水轮机
调节
模糊决策
非线性
hydraulic turbine
regulation
fuzzy decision
non-linear
