System and method of battery temperature control

摘要

A temperature control system for a battery in an energy storage system is disclosed. In one aspect, the temperature control system includes a circuit configured to determine that the temperature of the battery has been maintained below a normal operation temperature for a predetermined duration. The circuit is further configured to alternatingly repeat charging and discharging operations using a winding in a primary side of an inverter to generate reactive current to flow in opposite directions through the battery until the temperature of the battery is restored to the normal operation temperature.

主权项

1. A battery temperature control system comprising:
a battery; a converter electrically connected to the battery and comprising first and second switches and a first inductor, the converter configured to boost or drop an output voltage of the battery into an output voltage of converter; a DC linker electrically connected to the converter and comprising a first capacitor, the DC linker configured to stabilize the output voltage of the converter; and an inverter electrically connected to the DC linker and comprising a non-contact transformer, the non-contact transformer comprising a first winding on a primary side and a second winding on a secondary side, the first and second windings separated from each other by a gap therebetween, the non-contact transformer further comprising first to fourth switches provided on the primary side and a fifth switch and a second inductor provided on the secondary side.