摘要:
Disclosed herein are an electric energy storage apparatus, a voltage equalization module thereof, and a voltage equalization method. There is provided an electric energy storage apparatus, including: a plurality of electric energy storage cells connected in series; voltage sensing units sensing voltage charged in each of the electric energy storage cells, respectively; first bypass discharge units connected to each of the electric energy storage cells in parallel, respectively, and bypassing and discharging electric energy charged; second bypass discharge units additionally connected to each of the electric energy storage cells in parallel, respectively, and bypassing and additionally discharging electric energy; and a control unit receiving voltage information from the voltage sensing units, determining whether controlling or not and controlling operations of each of the first and second bypass discharge units so as to equalize charged voltage values of the electric energy storage cells.
摘要:
Disclosed herein are a wind power generation system including: a wind power generation unit converting wind energy into electrical energy and outputting the electrical energy; a wind power generation controlling unit controlling the electrical energy output from the wind power generation unit; and a capacitor unit and a battery unit storing the electrical energy controlled by the wind power generation controlling unit, wherein the wind power generation controlling unit includes a direct current (DC)-direct current (DC) converter monitoring the wind power generation unit and the capacitor unit to thereby selectively boost the electrical energy output from the wind power generation unit, and a method for controlling the same.
摘要:
Disclosed herein is an apparatus for stabilizing voltage of an energy storage in which a plurality of unit cells are connected to each other in series, including: a bypass unit that is connected to the unit cell in parallel; and a controller that detects voltage of the unit cell and controls an operation of the bypass unit according to the detected voltage of the unit cell, wherein the bypass unit bypasses current flowing in the unit cell when the detected voltage of the unit cell is larger than predetermined reference voltage to generate the reusing voltage, whereby the voltage of each unit cell is stably equalized and reuses the voltage provided to the bypass path, thereby performing voltage equalization without loss.
摘要:
Disclosed herein is a capacitor module including at least one capacitor, a cooling case accommodating the capacitor, and a cooling unit disposed in the cooling case and cooling a side surface of the capacitor.According to the present invention, cooling efficiency of the capacitor is maximized and fixing force of the capacitor in the cooling case is superior so that product reliability of the capacitor module can be improved.
摘要:
The present invention relates to mass production method for three-dimensional micro structure and especially to the mass production method for three-dimensional metal micro structure having high aspect ratio. According to the present invention, the manufacturing of the three-dimensional micro structure having high aspect ratio is possible, which was impossible with the prior art of MEMS or LIGA. Especially, micro structure with complex shape can be obtained through dividing into layers and depositing the layers. Micro structure with any shape can be obtained with the method according to the present invention.