DUPLICATION PROTECTION DEVICE FOR PROTECTING ENERGY STORAGE DEVICE AND ENERGY STORAGE SYSTEM HAVING THE DEVICE

摘要

Disclosed are a redundant protection device that can be electrically connected to an energy storage device to protect it, and an energy storage system having the same. Such energy storage systems include energy storage devices and redundant protection devices. The energy storage device can be charged by receiving external power from an external power device, or providing charging power to an external power device, and can be controlled by receiving a battery control signal from an external network device, and generating operation status information to the external network It can be provided as a device. The redundant protection device may perform a monitoring process of monitoring the state of the energy storage device while connecting between the external power device and the energy storage device while connecting between the external network device and the energy storage device. Accordingly, the redundant protection device can monitor and protect the energy storage device in addition to the self-monitoring function of the energy storage device.