Abstract: According to various embodiments, an antenna device may include: a board unit; a power feeding unit provided in the board unit; and radiation units connected to the power feeding unit to be fed with a power feeding signal. The radiation units may be provided to face each other within a width of the board unit along a periphery of the board unit. The device as described above may be implemented more variously according to embodiments.

Abstract: A power controlling apparatus for a fuel cell system includes a fuel cell controller which analyzes power state information of a fuel cell system, transmits a power state information signal based on the analysis to a power conversion controller, receives a load request power information signal from the power conversion controller, analyzes the received load request power information signal, and changes an outputtable power amount based on the analysis. The power controlling apparatus also includes a power conversion controller which transmits a load request power information signal based on power information requested by a load to the fuel cell controller, analyzes the power state information signal transmitted by the fuel cell controller, and controls a power convert amount based on the analysis.

Abstract: A fuel cell system comprises: a fuel cell stack (100) where an anode (110) and a cathode (120) are arranged under a state that an electrolyte membrane is positioned therebetween; a fuel tank (300) for storing a fuel; a fuel circulation supply means (400) for circulation-supplying a fuel stored in the fuel tank (300) to the anode of the fuel cell stack; an air supply unit (200) connected to the cathode of the fuel cell stack (100) by an air supply line, for supplying oxygen, etc. to the cathode (120); a sensing unit (500) for measuring a concentration of at least one of fuels supplied to the anode (110) and a control unit for receiving a signal of the sensing unit (500) and informing replacement time of a fuel. According to this, a fuel usage is maximized by informing replacement time of a used fuel and a filter (450) for filtering impurity by detecting a fuel consumption degree and an impurity generation amount.

Abstract: A multi-unit fuel cell system that includes a common-use reforming unit configured to supply hydrogen to multiple fuel cell units that are installed in multiple units, such as apartments within an apartment building. In one example embodiment, a fuel cell system including a common-use reforming unit and multiple fuel cell units is disclosed. The common-use reforming unit is configured to supply hydrogen to the plurality of fuel cell units. Each fuel cell unit includes a stack unit, an air supplying unit, an integral heat exchange unit, a hot-water supplying unit, an auxiliary heat supplying unit, and an electric output unit.

Abstract: The present invention discloses a power supply apparatus and method for a line connection type fuel cell system. The power supply apparatus for the line connection type fuel cell system includes: a storing unit for pre-storing a normal region and a warning region according to an operating condition of a fuel cell and a correlation between an output voltage and an output current of the fuel cell; and a control unit for detecting an operating point on the basis of the operating condition of the fuel cell, comparing the detected operating point with the normal region and the warning region, and outputting a control signal for increasing or decreasing the output current of the fuel cell according to the comparison result.

Abstract: A fuel cell system comprises: a DBFC for generating a power by receiving a fuel; a PEMFC for generating a power by receiving hydrogen, a byproduct generated at an anode of the DBFC after a reaction, as a fuel; a supplementary power partially charged by a power generated at the DBFC and the PEMFC and discharging the charged power; a load sensing unit for sensing a load connected to the DBFC, the PEMFC, and the supplementary power; and a control unit for controlling a power of the DBFC, the PEMFC, and the supplementary power according to a load sensed by the load sensing unit and thereby selectively supplying to the load. According to this, hydrogen generated at the DBFC is recycled, and a load amount is sensed thus to stably correspond to a load variation, thereby maximizing a fuel usage efficiency and stably driving the system.

Abstract: A fuel cell system comprises: a fuel storage means for storing a fuel; a direct borohydride fuel cell (DBFC); a fuel circulation supply means for circulation and supplying a fuel to an anode of the DBFC from the fuel storage means; a polymer electrolyte membrane fuel cell (PEMFC) for receiving hydrogen generated at the anode of the DBFC as a fuel; a hydrogen control means for controlling hydrogen generated from the anode of the DBFC in correspondence to an amount required by the PEMFC and thereby supplying the hydrogen to the PEMFC; and an air supply means for supplying air to a cathode of the DBFC and an cathode of the PEMFC.

Abstract: Fuel cell including an electrolyte, an anode and a cathode on both sides of the electrolyte, a cathode side separator at an outer side of the cathode having a flow passage for flow of air, and a flow passage between the electrolyte and the anode, thereby improving an electricity generating performance.

Abstract: A multi-unit fuel cell system that includes a common-use reforming unit configured to supply hydrogen to multiple fuel cell units that are installed in multiple units, such as apartments within an apartment building. In one example embodiment, a fuel cell system including a common-use reforming unit and multiple fuel cell units is disclosed. The common-use reforming unit is configured to supply hydrogen to the plurality of fuel cell units. Each fuel cell unit includes a stack unit, an air supplying unit, an integral heat exchange unit, a hot-water supplying unit, an auxiliary heat supplying unit, and an electric output unit.

Abstract: A fuel cell system is provided which produces improved reaction speed and performance. The fuel cell system includes a fuel cell stack including an anode, a cathode, and an electrolyte membrane disposed therebetween. A fuel tank supplies hydrogen-based fuel to the anode of the fuel cell stack, and an oxidant supplying unit adds ozone to oxygen- including air supplies it to the cathode of the fuel cell stack. The ozone supplied to the cathode of the fuel cell stack accelerates a reaction speed in the fuel cell stack, thereby producing a relatively high current density and improving fuel cell performance.

Abstract: A fuel cell system comprises: a fuel cell stack (100) where an anode (110) and a cathode (120) are arranged under a state that an electrolyte membrane is positioned therebetween; a fuel tank (300) for storing a fuel; a fuel circulation supply means (400) for circulation-supplying a fuel stored in the fuel tank (300) to the anode of the fuel cell stack; an air supply unit (200) connected to the cathode of the fuel cell stack (100) by an air supply line, for supplying oxygen, etc. to the cathode (120); a sensing unit (500) for measuring a concentration of at least one of fuels supplied to the anode (110) and a control unit for receiving a signal of the sensing unit (500) and informing replacement time of a fuel. According to this, a fuel usage is maximized by informing replacement time of a used fuel and a filter (450) for filtering impurity by detecting a fuel consumption degree and an impurity generation amount.

Abstract: A fuel cell system comprises: a fuel storage means (100) for storing a fuel; a DBFC (200); a fuel circulation supply means (300) for circulation-supplying a fuel to an anode of the DBFC from the fuel storage means (100); a PEMFC (400) for receiving hydrogen generated from the anode of the DBFC as a fuel; a hydrogen control means (500) for controlling hydrogen generated from the anode of the DBFC in correspondence to an amount required by the PEMFC and thereby supplying the hydrogen to the PEMFC (400); and an air supply means (600) for supplying air to a cathode of the DBFC and a cathode of the PEMFC.

Abstract: A fuel cell system comprises: a DBFC for generating a power by receiving a fuel; a PEMFC for generating a power by receiving hydrogen, a byproduct generated at an anode of the DBFC after a reaction, as a fuel; a supplementary power partially charged by a power generated at the DBFC and the PEMFC and discharging the charged power; a load sensing unit for sensing a load connected to the DBFC, the PEMFC, and the supplementary power; and a control unit for controlling a power of the DBFC, the PEMFC, and the supplementary power according to a load sensed by the load sensing unit and thereby selectively supplying to the load. According to this, hydrogen generated at the DBFC is recycled, and a load amount is sensed thus to stably correspond to a load variation, thereby maximizing a fuel usage efficiency and stably driving the system.

Abstract: Disclosed are a fuel cell system and a control method thereof. The fuel cell system comprises: a main fuel cell stack (6) that an anode (2) and a cathode (4) are arranged in a state that an electrolyte membrane is interposed therebetween; a fuel supplying unit connected with the anode of the main fuel cell stack (6) by a fuel supplying line (16) for supplying hydrogen-including fuel to the anode; an air supplying unit (10) connected to the cathode of the main fuel cell (6) stack by an air supplying line (20) for supplying oxygen-including air to the cathode (4); and a sub fuel cell stack (14) for using hydrogen generated at the anode (2) during reaction as fuel. According to this, energy efficiency of a fuel cell can be increased and danger due to exhaustion of hydrogen generated at the fuel cell stack (6) can be decreased.

Abstract: The present invention discloses a power supply apparatus and method for a line connection type fuel cell system. The power supply apparatus for the line connection type fuel cell system includes: a storing unit for pre-storing a normal region and a warning region according to an operating condition of a fuel cell and a correlation between an output voltage and an output current of the fuel cell; a detecting unit for detecting a common power current; and a control unit for detecting an operating point of the fuel cell, and outputting a control signal for varying the output current of the fuel cell on the basis of the position of the detected operating point and detection or non-detection of the common power current.

Abstract: The present invention discloses a power supply apparatus and method for a line connection type fuel cell system. The power supply apparatus for the line connection type fuel cell system includes: a storing unit for pre-storing a normal region and a warning region according to an operating condition of a fuel cell and a correlation between an output voltage and an output current of the fuel cell; and a control unit for detecting an operating point on the basis of the operating condition of the fuel cell, comparing the detected operating point with the normal region and the warning region, and outputting a control signal for increasing or decreasing the output current of the fuel cell according to the comparison result.

Abstract: A power controlling apparatus for a fuel cell system includes a fuel cell controller which analyzes power state information of a fuel cell system, transmits a power state information signal based on the analysis to a power conversion controller, receives a load request power information signal from the power conversion controller, analyzes the received load request power information signal, and changes an outputtable power amount based on the analysis. The power controlling apparatus also includes a power conversion controller which transmits a load request power information signal based on power information requested by a load to the fuel cell controller, analyzes the power state information signal transmitted by the fuel cell controller, and controls a power convert amount based on the analysis.

Abstract: A home network system using a fuel cell, comprises: a plurality of home electric units for receiving remote control data, analyzing the received remote control data, and thus performing each controlling operation; and a communication server for receiving the remote control data from outside through an internet and transmitting the received remote control data to the plural home electric units.

Abstract: An apparatus for controlling operation of a fuel cell system and a method thereof. The apparatus comprises a power generation amount controlling unit for generating a user's heat usage pattern and outputting a power generation amount controlling signal for controlling a power generation amount of a fuel cell based on the generated user's heat usage pattern, and a power generation command generating unit for applying a power generation command corresponding to the power generation amount controlling signal outputted from the power generation amount controlling unit to the fuel cell.

Abstract: An apparatus for controlling operation of a fuel cell system, and a method thereof. The apparatus comprises a power generation amount controlling unit for generating a user's heat usage pattern and a user's power usage pattern and outputting a power generation amount controlling signal for controlling a power generation amount of a fuel cell by selecting the user's heat usage pattern or the user's power usage pattern according to a system efficiency priority regarding the generated user's heat usage pattern and the user's power usage pattern, and a power generation command generating unit for applying a power generation command corresponding to the power generation amount controlling signal outputted from the power generation amount controlling unit to the fuel cell.