PROBLEM TO BE SOLVED: To provide a power storage device capable of raising the temperature of a capacitor and suppressing degradation of a capacitor at the time of temperature increase.SOLUTION: The power storage device includes a first capacitor, a second capacitor having a capacity deterioration coefficient dependent on a storage capacity larger than that of the first capacitor, a converter for converting at least one of an output voltage of the first capacitor and an output voltage of the second capacitor, and a control unit for controlling the converter. If the respective temperatures of the first capacitor and the second capacitor are equal to or less than the threshold value, the control unit controls the converter to execute alternate charge and discharge alternately performing charging and discharging between the first capacitor and the second capacitor, and based on the storage capacity of the second capacitor, determines which one of the first capacitor and the second capacitor discharges first when alternate charging/discharging is started.SELECTED DRAWING: Figure 8
【課題】蓄電器を昇温でき、かつ、昇温時の蓄電器の劣化を抑制可能な蓄電装置を提供すること。【解決手段】蓄電装置は、第1蓄電器と、蓄電容量に対する容量劣化係数の依存が第1蓄電器より大きい第2蓄電器と、第1蓄電器の出力電圧及び第2蓄電器の出力電圧の少なくとも一方を変換する変換部と、変換部を制御する制御部とを備える。制御部は、第1蓄電器及び第2蓄電器の各温度がしきい値以下であれば、変換部を制御して、第1蓄電器と第2蓄電器の間で交互に充放電を行う交互充放電を実行し、第2蓄電器の蓄電容量に基づき、交互充放電を開始する際に第1蓄電器及び第2蓄電器のどちらが先に放電するかを決定する。【選択図】図8
POWER STORAGE DEVICE, TRANSPORTATION DEVICE, AND CONTROL METHOD
蓄電装置、輸送機器及び制御方法
18.05.2017
Patent
Elektronische Ressource
Japanisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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