Grid-connected Current Control System that Links the Electricity Generated form IdleEmergency Generator to Utility Power Supply

摘要

The present invention relates to a current control system for grid-connecting an idle (emergency) generator to commercial power, in which the idle (emergency) generator is grid-connected to the commercial power to be used as a demand management resource in a power supply crisis of the commercial power to mitigate a power supply crisis. To this end, according to the present invention, an MCCB breaker and an ACB breaker are installed in an existing idle (emergency) generator and the current control system controls a current generated from the idle (emergency) generator to transfer the current to the commercial power. The current control system does not exceed continuous generation efficiency of the idle (emergency) generator and safely transmits generated power to the commercial power in synchronization with the idle (emergency) generator. Accordingly, in the power supply crisis, the idle (emergency) generator is remotely operated at a central control room to be connected to a grid, thereby providing an effect of smoothly overcoming the power supply crisis.