OUTPUT ESTIMATION METHOD AND OUTPUT ESTIMATION DEVICE FOR PHOTOVOLTAIC POWER GENERATION

摘要

PROBLEM TO BE SOLVED: To implement output estimation for photovoltaic power generation more easily with few sensors than in a conventional way.

SOLUTION: The output estimation method for photovoltaic power generation includes: a step for measuring changes in active power and reactive power at an observation point 50b provided on the more upstream side than a plurality of photovoltaic power generation devices PV1-PV3 and a plurality of load devices LD1-LD6 connected to a distribution system 1; a step for calculating a restoration signal by independent component analysis using data of active power and reactive power measured at the observation point 50b; and a step for estimating a change in active power totally consumed at the plurality of load devices LD1-LD6 based on the restoration signal and a change in the active power totally output from the plurality of photovoltaic power generation devices PV1-PV3.

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