SYSTEM COOPERATION ARRANGEMENT AND ITS CONTROLLING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a system cooperation arrangement capable of achieving a high conversion efficiency while suppressing the harmonic component of an output current below a reference level, and to provide a control method of the system cooperation arrangement.

SOLUTION: The system cooperation arrangement comprising a step-up circuit 22 of the power generated from a power generation source 11, and an inverter circuit 23 for converting the frequency of the power from the step-up circuit 22 into the commercial power frequency is further provided with a means for detecting the output current from the inverter circuit 23. Magnitude of the harmonic component contained in the output current detected by the current detecting means is then calculated based on the time series variation of the output current and the step-up voltage level in the step-up circuit 22 is controlled based on the magnitude of the harmonic component.

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