POWER SUPPLY DEVICE AND DISCHARGE/CHARGE CONTROL METHOD

• Main Author: MIYATA SHINYA
• Format: Patent
• Language: English; Japanese
• Published: 10.05.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

PROBLEM TO BE SOLVED: To provide a power supply device which prolongs the lifetime of an LIC packaged module, and a discharge/charge control method.SOLUTION: LICs 21-26 are divided into multiple LIC groups 201-203. Switches 14-16 switch a power supply path in such a manner that charge-discharge is performed in accordance with a combination of the LIC groups 201-203. A lifetime diagnosis part 102 calculates the lifetimes of the multiple LICs 21-26. Based on the lifetimes of the LIC 24-26, a charge/discharge priority control part 103 sets a priority for each of the LIC groups 201-203. A charge/discharge management part 105 selects the LIC groups 201-203 to be charged/discharged based on the priority that is set by the charge/discharge priority control part 103, and supply power required for discharge and controls the switches 14-16 in such a manner that the charge/discharge is performed in accordance with the combination of the selected LIC groups 201-203.SELECTED DRAWING: Figure 1 【課題】ＬＩＣ登載モジュールの寿命を延ばす電源装置及び放充電制御方法を提供する。【解決手段】 ＬＩＣ２１〜２６は、複数のＬＩＣグループ２０１〜２０３にグループ化される。スイッチ１４〜１６は、ＬＩＣグループ２０１〜２０３の組み合わせで充放電が行われるように給電経路を切り替える。寿命診断部１０２は、複数のＬＩＣ２１〜２６の寿命を求める。充放電優先度制御部１０３は、各ＬＩＣ２４〜２６の寿命を基に、ＬＩＣグループ２０１〜２０３毎の優先度を設定する。充放電管理部１０５は、充放電優先度制御部１０３により設定された優先度及び放電時に要求される供給電力を基に、充放電を行うＬＩＣグループ２０１〜２０３を選択し、選択したＬＩＣグループ２０１〜２０３の組み合わせで充放電が行われるようにスイッチ１４〜１６を制御する。【選択図】図１