Battery system and energy storage system including the same

摘要

A battery system comprises a battery comprising a plurality of battery modules, each battery module comprising at least one battery cell, a plurality of measuring units, each comprising a plurality of primary analog front end AFE modules connected in series and a secondary analog front end AFE module connected to one of the primary AFE modules in the series, a processor for processing data received from the measuring units and an isolator for providing electrical isolation between the measuring units and the processor, wherein the isolator is connected to one of the secondary AFE modules other than to the secondary AFE module that is connected to the primary AFE module that corresponds to an outermost battery module at the highest or lowest potential end of the battery. The battery system allows for a reduction in the withstand voltage of the isolator.