Abstract: An energy storage system of an apartment building, an integrated power management system, and a method of controlling the integrated power management system. Power may be efficiently consumed by supplying remaining power stored in an energy storage system of each apartment to a common load.

Abstract: An energy storage system, more particularly, a grid-connected energy storage system including a renewable energy generation system. The energy storage system includes a compensation unit for storing or outputting electric energy generated from a renewable energy generation system including a plurality of renewable energy generation modules; and a power managing system for converting power generated from the renewable energy generation system into power for driving a load, outputting the load, and operating the compensation unit when a mismatch loss is generated so that entire output power from the renewable energy generation system is smaller than the sum of maximum power of the renewable energy generation modules.

Abstract: A contactless power charging system and an energy storage system including the same, the contactless power charging system including a contactless transformer configured to transmit power stored in a battery to a load, wherein the contactless transformer includes a primary core unit, the primary core unit including a first base portion, a projecting portion projecting from the first base portion, and a primary coil wound around the projecting portion; and a secondary core unit, the secondary core unit including a second base portion, a concave portion in the second base portion to receive the projecting portion, and a secondary coil on an inner surface of the concave portion, the secondary coil being configured to couple to the primary coil.

Abstract: A power conversion system for an energy storage system includes: at least two conversion units respectively configured to be coupled to one or more power sources or loads; and at least one output controller configured to generate at least one reference voltage to control at least one of the at least two conversion units, wherein the at least one of the at least two conversion units includes: a plurality of conversion subunits having inputs coupled to at least one of the power sources and having outputs that are coupled to one another; and at least one conversion subunit controller configured to adjust output voltages of the plurality of conversion subunits to be substantially the same corresponding to the at least one reference voltage, wherein the at least one reference voltage corresponds to the output voltages and output currents of the plurality of conversion subunits.

Abstract: A contactless power charging system and an energy storage system including the same, the contactless power charging system including a contactless transformer configured to transmit power stored in a battery to a load, wherein the contactless transformer includes a primary core unit, the primary core unit including a first base portion, a projecting portion projecting from the first base portion, and a primary coil wound around the projecting portion; and a secondary core unit, the secondary core unit including a second base portion, a concave portion in the second base portion to receive the projecting portion, and a secondary coil on an inner surface of the concave portion, the secondary coil being configured to couple to the primary coil.

Abstract: An energy storage system of an apartment building, an integrated power management system, and a method of controlling the integrated power management system. Power may be efficiently consumed by supplying remaining power stored in an energy storage system of each apartment to a common load.