| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of the possibility of determining that current has rapidly grown in spite of the current not growing.SOLUTION: A power converter comprises: a power conversion unit for converting power to desired AC power; a current detector for detecting output current from the power conversion unit; a current detection unit for taking in, as output current data, the output current detected by the current detector; a current delay calculation unit for performing low-pass filter processing on output current data taken in by the current detection unit; a current prediction unit for predicting data on actual current flowing in the power conversion unit on the basis of the output current data taken in by the current detection unit and the output current data on which the low-pass filter processing is performed by the current delay calculation unit; and an output current determination unit for determining output current on the basis of the actual current data predicted by the current prediction unit. The output current determination unit interrupts output of the power conversion unit when the actual current data predicted by the current prediction unit satisfies a prescribed condition. |
