To provide a voltage distribution calculation device that can further exactly calculate a voltage or a load amount between each zone in a power distribution system, and to provide an inter-zone load calculation device and its method.
By solving a tidal equation by using voltages in installation points of switches with measuring instruments in two points, active power tidal values, and reactive power tidal values; there can be calculated a pseudo-concentration load point that represents a plurality of the zones including a branch line sandwiched by the two points, a voltage in the point, an active power load amount, and a reactive power load amount. The voltage distribution or the inter-zone load amount of the whole of the power distribution system is obtained on the basis of the calculation.
NAKANISHI YOUSUKE
MATSUDA HIDEKI
