Patent ID: 9001480
Filing Date: 2015-04-07
Classification: H02J,H02M,Y02B

Abstract:
1. A distributed energy resources control apparatus for controlling power from a distributed energy resource in a system section separable from a power system comprising: a detecting unit which detects a fault of the power system; a receiving unit which receives a signal indicating authorization for the distributed energy resource to perform an independent operation as linking with the system section when the system section is separated from the power system; and a control unit which controls a power converter converting power from the distributed energy resource and outputting to the system section, based on measurement results of a voltage and a frequency of the system section, when the fault is detected and the signal is received, wherein the measurement results comprise a voltage deviation of the system section relative to a prescribed voltage, and wherein the detecting unit transmits a cut-off command to cut off between the system section and the distributed energy resource, and the control unit controls the power converter with a voltage-sourced voltage control method, based on the voltage deviation, when the fault is detected and the signal is not received.