CONTROL METHOD OF PHOTOVOLTAIC POWER GENERATION SYSTEM AND POWER GENERATION PREDICTING APPARATUS OF PHOTOVOLTAIC POWER GENERATION SYSTEM

摘要

PPROBLEM TO BE SOLVED: To solve problems in operation life and price of electrical power storage part in the photovoltaic power generation system in which a stabilizer is connected to a power system. PSOLUTION: The photovoltaic power generating apparatus is divided into a part for regulation operation and a part for backup operation. A control part stores a previously generated peak curve of power generation until the power generation end time from the power generation start time of the photovoltaic power generation apparatus and an operation planning table of charge to the power storage part. During a charging operation until the power generation end time from the power generation start time, an extra power is charged when power generation output is larger than the value in the charging operation planning table and a solar cell group for backup operation is connected to the power system when the power generation output is smaller than the scheduled charging value. Moreover, during a non-charging operation, discharging is conducted along the peak curve. PCOPYRIGHT: (C)2008,JPO&INPIT