According to an embodiment, a power converter (1) includes a main circuit (10), an electrification control unit (25), and an analysis unit (24). The main circuit includes a plurality of switching devices (Q1 to Q4), converts direct-current power into multiphase alternating-current power through switching of the plurality of switching devices, is able to supply the multiphase alternating-current power to an alternating-current load (2) connected to an output side, and output a detection result of a device short circuit current flowing in each of the plurality of switching devices. The electrification control unit electrifies the plurality of switching devices for a predetermined time based on one of a plurality of pre-decided analysis test electrification patterns. The analysis unit analyzes soundness of the main circuit using a load current flowing from the main circuit to the alternating-current load, a phase voltage output by the main circuit, and data at the time of electrification for the predetermined time with regard to the device short circuit current flowing in each of the plurality of switching devices.