电压型直流电源装置及电压型直流电源装置之控制方法;VOLTAGE TYPE DC POWER SUPPLY APPARATUS AND CONTROL METHOD OF VOLTAGE TYPE DC POWER SUPPLY APPARATUS

摘要

在具备反流器的电压型直流电源装置中，于电弧产生时抑制从反流器对负载侧之电流供给。;在电压型直流电源装置的直流输出停止/恢复时，于停止时将截波(chopper)部从反流器分离开来，藉此抑制电弧产生时对负载的过剩电流，高速进行电弧之消弧；将流通于截波部之电流保持成为循环电流，并于反流器再启动时将保持之循环电流供给至负载，藉此于电压型直流电源装置的直流输出恢复时，减低对负载的直流电力供给延迟。;In a halt and return of a DC output of a voltage type DC power supply apparatus, when the DC output halts an excessive current to a load at the time of an arc generation is suppressed and the arc is extinguished quickly by disconnecting a chopper part from an inverter, and a current flowing on the chopper part is hold as a circulating current. When the inverter restarts, a logging in supply of the DC power to the load is reduced at the time of a return of the DC power of the voltage type DC power supply apparatus by supplying the hold circulating current to the load.