POWER MANAGEMENT SYSTEM, ELECTRIC POWER CONVERSION SYSTEM AND POWER MANAGEMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a power management system, electric power conversion system and power management method, capable of eliminating disadvantages of a user even while suppressing an inverse load flow into a system side by output suppression.SOLUTION: In a case where a PCS 130 for converting DC power input from both of a solar battery 110 and a storage battery 120 into AC power is used, a recorder 500 records a value obtained by subtracting charge power of a storage battery 120 from output power of an inverter as a verification record while charging the storage battery 120.SELECTED DRAWING: Figure 2