| 摘要 |
PURPOSE:To estimate the system condition of future properly by a method wherein an estimated total future demand is operated from a difference between an actual total demand and a total demand obtained statistically as well as the changing rate of the difference. CONSTITUTION:A total demand estimating means S11 is interposed after a system condition determining means S10 to detect a difference between an actual total demand and a total demand obtained statistically from accumulated data in the past as well as the changing rate of the difference. A total demand estimating means S11 corrects the statistically obtained total demand by the difference and the changing rate of the difference and operates an estimated total demand in future. A future system condition estimating means S20 estimates the system condition in future based on the present system condition, determined by the means S10, and the total demand estimated by the means S11. As a result, the future system condition can be estimated properly by estimating the future total demand with a good accuracy even when the total demand is being changed suddenly whereby more stabilized operation of a power system can be supported. |
