MANAGEMENT DEVICE, AND POWER STORAGE SYSTEM

In this management device which manages a power storage module, a voltage measuring unit (11) measures n voltages of n power storage blocks. A ranking part (143) ranks the n power storage blocks in the descending order/ascending order of magnitude of the measured voltage values. A frequency distribution information generating unit (144), for each of the n power storage blocks, sums up ranks of themeasured voltages given within a set period, and generates frequency distribution information of the voltage ranks. An abnormality determining unit (148) detects an abnormality when a normal rank state becomes a different rank state. 在对蓄电模块进行管理的管理装置中，电压计测部(11)计测n个蓄电块的n个电压。位次赋予部(143)针对n个蓄电块以计测出的电压值的大小的顺序按从大到小的顺序/从小到大的顺序赋予位次。频数分布信息生成部(144)按照n个蓄电块的每个合计在设定期间内赋予的计测电压的位次，来生成电压位次的频数分布信息。异常判定部(148)在成为与正常时的位次状态不同的位次状态时进行异常探测。