Abstract: A storage battery system connected to a power system and operative based on a charge/discharge request from an EMS includes: a battery management unit configured to monitor a state of the storage battery; a power conditioning system; a control device configured to receive the charge/discharge request and storage battery information supplied from the battery management unit and to control the power conditioning system based thereon; an on-site monitoring and operating device directly connected to the control device, the on-site monitoring and operating device including a display unit configured to display the storage battery information and an operation unit configured to enable an on-site charge/discharge request to the AC-DC converter to be input. The control device includes an on-site request adjustment unit configured to receive the on-site charge/discharge request and the storage battery information and to determine a charge/discharge command to the power conditioning system based thereon.

Abstract: A storage battery system having enhanced safety of the interlock processing. A storage battery system connected to a power system and operative based on a charge/discharge request from an EMS includes: a battery management unit configured to monitor a state of the storage battery; a power conditioning system; and a control device configured to receive the charge/discharge request and storage battery information supplied from the battery management unit and to control the power conditioning system based on the charge/discharge request and the storage battery information. The control device further includes an interlock processing unit configured to perform interlock processing upon detection of abnormality of the storage battery system, the interlock processing corresponding to a content of the detected abnormality.