| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sodium-sulfur module battery operating method preventing a battery from insufficient charging for properly meeting the power demand. SOLUTION: A fixed period of a plurality of days are set as a unit consisting of a predetermined days, in which a discharging-charging cycle for discharging electricity necessary for discharging a normal amount of discharging electricity in the daytime and for charging in the nighttime is repeated, and a predetermined days, in which no discharging-charging cycle is carried out for a rest state. In one unit, every time when the discharging-charging cycle is repeated, a time mean temperature in a discharging time of a module battery is increased higher than that of the previous discharging-charging cycle, while a module battery temperature at a start of the following discharge after the rest state for the predetermined days is brought close to that at a start of discharging in the first day of the previous unit.</p> |
