| 摘要 |
PROBLEM TO BE SOLVED: To enable immediate analysis of fluctuation of a system by determining a transfer function of the ratio between the amount of fluctuation of a terminal voltage of a synchronous generator and a minute fluctuation of an automatic voltage regulator circuit and by analyzing transient phenomena by linear approximation. SOLUTION: Δet , ΔVfd and Δe'q are a terminal voltage, a field voltage and an axis (d) transient voltage of a minute fluctuation of a synchronous generator respectively, while ΔVAVR is the minute fluctuation of an AVR voltage, GGOV a transfer function of a governor and GAVR the transfer function of AVR. The fluctuation amount Δ et of the terminal voltage of the synchronous generator in relation to an active method at the time of system interconnection can be analyzed by determining the transfer function of Δet /ΔVAVR. By this analysis, it is made possible to examine beforehand the voltage fluctuation, a reactive power fluctuation, etc., given to the system side by making an AVR voltage command value fluctuate minutely. |
