DC / DC converter, a control method of the power converter, distributed power systems, and DC / DC converter

摘要

PROBLEM TO BE SOLVED: To provide a DC-DC conversion apparatus, performing continuous operation of a power conversion apparatus even when an instantaneous drop in a system voltage occurs and rapidly recovering output power of the power conversion apparatus when the system voltage recovers, capable of accommodating it even if an output status of a DC power supply changes suddenly during an instantaneous drop.;SOLUTION: After an instantaneous drop in a system voltage occurs, a control section, upon detecting that an output voltage of a DC-DC converter section 211 is below a threshold value for recovery determination, determines the system voltage to have recovered and, while the output voltage of the DC-DC converter section 211 is below the threshold value for recovery determination, increases a width of a pulse signal driving switching elements Q1, Q2 to raise the output voltage of the DC-DC converter section 211.;COPYRIGHT: (C)2014,JPO&INPIT