Abstract: A battery bank control device is provided for setting a power limit value of a battery bank in which a plurality of battery racks (BRs) are connected in parallel. The device includes: a voltage measurement unit measuring a voltage of each BR of the plurality of BRs; a first power limit calculation unit calculating a first power limit value according to a state of charge (SOC) calculated based on the voltage of each BR with respect to each BR; a capacity ratio calculation unit calculating a capacity ratio of each BR based on capacity information of the plurality of BRs; a second power limit calculation unit calculating a second power limit value using the capacity ratio and the first power limit value of each BR; and a battery bank power limit calculation unit calculating a battery bank power limit value using the second power limit value of each BR.

Abstract: An apparatus for simulating a wind power farm includes a wind power generator simulator configured to act as a virtual wind power generator to dynamically generate an attribute value and provide the attribute value to a supervisory control and data acquisition (SCADA) system to be tested; a wind power generator simulation platform configured to generate and manage a plurality of wind power generator simulators within one system, monitor the system, monitor operation states of the plurality of wind power generator simulators, and transmit a result of monitoring the operation states; and a wind power farm controller configured to generate a wind power farm by grouping a plurality of wind power generator simulation platforms into a single cluster, and manage a simulation environment of the wind power farm.

Abstract: An apparatus for simulating a wind power farm includes a wind power generator simulator configured to act as a virtual wind power generator to dynamically generate an attribute value and provide the attribute value to a supervisory control and data acquisition (SCADA) system to be tested; a wind power generator simulation platform configured to generate and manage a plurality of wind power generator simulators within one system, monitor the system, monitor operation states of the plurality of wind power generator simulators, and transmit a result of monitoring the operation states; and a wind power farm controller configured to generate a wind power farm by grouping a plurality of wind power generator simulation platforms into a single cluster, and manage a simulation environment of the wind power farm.

Abstract: Disclosed herein is an automatic meter reading system for an underground distribution line using wired/wireless communication. The system includes at least one Data Concentration Unit (DCU), at least one Wireless Gathering Unit (WGU), and at least one wireless communication modem. The DCU is installed in a ground transformer, and sends meter reading data to an underground high-voltage distribution line (DL) using a Frequency Division Duplex (FDD) power line communication repeating method. The WGU is installed on a ground rising pipe or at a multi-consumer lead-in wire, and sets up a higher wireless mesh network and a lower wireless mesh network. The wireless communication modem sets up the lower wireless mesh network along with the WGU and the wireless communication modems, gathers the meter reading data, stores the gathered meter reading data, and transfers the stored meter reading data to the DCU through the WGU.

Abstract: Disclosed herein is an automatic meter reading system for an underground distribution line using wired/wireless communication. The system includes at least one Data Concentration Unit (DCU), at least one Wireless Gathering Unit (WGU), and at least one wireless communication modem. The DCU is installed in a ground transformer, and sends meter reading data to an underground high-voltage distribution line (DL) using a Frequency Division Duplex (FDD) power line communication repeating method. The WGU is installed on a ground rising pipe or at a multi-consumer lead-in wire, and sets up a higher wireless mesh network and a lower wireless mesh network. The wireless communication modem sets up the lower wireless mesh network along with the WGU and the wireless communication modems, gathers the meter reading data, stores the gathered meter reading data, and transfers the stored meter reading data to the DCU through the WGU.

Abstract: A coupler-integrated transformer for processing power line communication is disclosed. The transformer includes a sensor unit to obtain power and transformer state information, low- and high-voltage power line communication modules to send the power and transformer state information via a low-voltage or high-voltage power line, and to send a communication signal from the low-voltage power line to the high-voltage power line or vice versa via signal amplification, low- and high-voltage power line communication couplers connected to the low- and high-voltage power line communication modules to perform insertion and extraction of the communication signal with respect to a power distribution line, and a microcontroller to process the information from the sensor unit and supply the processed information to the power line communication modules.