用简单图解法分析调压室水位波动的稳定性

Analysis of the fluctuation stability of surge chamher through simple graphic method

用图解法分析调压室水位波动的稳定性具有以下特点：方法简单、醒目，可以研究大波动问题；可以给出波动过程；可以分析等出力、等开度、等出力结合全开度的情况，考虑了机组效率的变化。

Use graphic method to analyze the stability of surge chatnber fluctuati-on,has the special features as fouows:The method is simple and clear; Applicableto study large fluctuation problems; It is feasible to show the procedure in fluc-tuationi This method can analvze the conditions of equivalent output、equivalentopening、combination with equivalent output and full opening; This method con-sideted the changes of turbine generator machine group efficiency.