Patent ID: 8976560
Filing Date: 2015-03-10
Classification: B60L,H02M,H02P,Y02T

Abstract:
1. An inverter control device comprising: a voltage detector configured to detect a direct-current voltage of an inverter that converts a direct-current power input from a direct-current power supply into an alternating-current power; a target value calculation section configured to calculate a target value of an alternating-current output from the inverter based on a detection voltage detected by the voltage detector; an inverter control section configured to generate a control signal for a switching element of the inverter based on the detection voltage and the target value to control the inverter; an abnormality detector configured to detect an occurrence of an abnormality in the voltage detector; and a voltage clamp unit configured to clamp the detection voltage, for calculating the target value by the target value calculation section, at a first assured voltage determined based on a lower limit area of an assured voltage range that assures an operation of the inverter; and clamps the detection voltage, for generating the control signal by the inverter control section, at a second assured voltage that is higher than the first assured voltage, upon detecting the abnormality in the voltage detector by the abnormality detector.