PV curve generating device, PV curve generating method and program

摘要

PROBLEM TO BE SOLVED: To determine the step width when generating a PV curve properly depending on the shape or size of the PV curve.SOLUTION: A PV curve generation apparatus for generating a PV curve representing the relationship of the voltage and power demand in a power system includes an approximate curve generation unit performing power flow calculation a predetermined number of times while changing the first power demand value every first predetermined amount from the initial value, calculating the first voltage value in each case where the first power demand value changes every first predetermined amount, and generating an approximation curve of the PV curve by using these values, an increment calculation unit for calculating a second predetermined value by dividing the difference of the upper limit value ad initial value of power demand, indicated by the approximation curve, by a predetermined number of partitions, and a PV curve generation unit performing power flow calculation while changing the second power demand value every second predetermined value from the initial value, calculating the second voltage value in each case where the second power demand value changes every predetermined amount, and generating a PV curve by using these values.SELECTED DRAWING: Figure 1