Voltage control apparatus, method, and program

摘要

The voltage control apparatus (202) includes: a first information obtaining unit (302) obtaining an output value of active power output from each of the distributed generations, and a voltage deviation amount or a voltage value at a point of common coupling of each of the distributed generations; and a control variable calculating unit (303) calculating a control variable corresponding to an amount of the active power or reactive power that should be changed and is to be output from each of the distributed generations to the distribution system so that the voltage deviation amount or the voltage value at one of the points of common coupling falls within a predetermined proper range in advance, wherein the control variable calculating unit calculates the control variable to be larger, as the output value of the active power output from one of the distributed generations is larger.