SYSTEM-COOPERATIVE INVERTER

摘要

PROBLEM TO BE SOLVED: To provide a system-cooperative inverter suppressing variations in switching and DC components of AC output current.

SOLUTION: The system-cooperative inverter has a voltage detecting means 8 for detecting a voltage between a midpoint of two capacitors C1, C2 and positive and negative busbars 201, 202 and a voltage between the positive and negative busbars; and an inverter output current control means 12 for controlling the DC components of an output current command of an inverter so that the voltage between the midpoint of the two capacitors and the positive and negative busbars may be 1/2 of the voltage between the positive and negative busbars.

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