Power converter, power generating system, apparatus for controlling power converter, and method for controlling power converter

摘要

A power converter according to one embodiment includes a controller that switches between a boosting operation in a boost circuit and a pulse-width modulation operation in a single-phase inverter. The controller modifies an output from a voltage detection filter based on a delay compensating value for compensating a detection delay introduced by the voltage detection filter, when switching is performed the boosting operation in the boost circuit to the PWM operation in the single-phase inverter.

主权项

1. A power converter comprising:
a boost circuit that boosts a voltage of a direct-current (DC) power source; a single-phase inverter that converts a voltage output from the boost circuit into an alternating-current (AC) voltage; and a controller that switches between a boosting operation in the boost circuit and a pulse-width modulation (PWM) operation in the single-phase inverter, the controller includes:
a voltage detection filter that removes a noise component from a detection result of a voltage detector detecting the output voltage of the boost circuit; anda detected voltage modifying unit that modifies an output from the voltage detection filter based on a delay compensating value for compensating a detection delay introduced by the voltage detection filter, when switching is performed from the boosting operation in the boost circuit to the PWM operation in the single-phase inverter.