US 2024/0178656 A1 · BATTERY PROTECTION UNIT AND CONTROL METHOD FOR BATTERY PROTECTION UNIT

Abstract

The present disclosure comprises: a solid-state circuit breaker, which is arranged between a battery system and a line and includes a semiconductor switch for providing an electrical connection or insulation between the battery system and the line according to the voltage applied to a gate terminal; an interrupter switch for providing a physical connection or separation between the solid-state circuit breaker and the line; and a rack battery management system which controls a gate driver applying the gate voltage, so as to provide insulation between the battery system and the line according to the result of sensing a current flowing between the battery system and the line, and which controls the interrupter switch to physically separate the solid-state circuit breaker from the line.

Claims15

Dependent claims

A battery protection unit (BPU) connecting between a battery system and a line, the battery protection unit comprising:

a solid-state circuit breaker disposed between the battery system and the line, the solid-state circuit breaker comprising a semiconductor switch electrically connecting or insulating between the battery system and the line according to a gate voltage applied to a gate terminal thereof;
a cut-off switch physically connecting or separating between the solid-state circuit breaker and the line;
and
a rack battery management system (RBMS) that controls a gate driver applying the gate voltage according to a result of sensing a current flowing between the battery system and the line to insulate between the battery system and the line, and controls the cut-off switch to physically separate the solid-state circuit breaker from the line when the battery system is connected to the line.

1 more element

A method of controlling a battery protection unit (BPU) comprising a solid-state circuit breaker connecting between a battery system and a line, the method comprising:

controlling, by a rack battery management system (RBMS) of the battery protection unit, a cut-off switch disposed between the solid-state circuit breaker and the line to physically connect between the battery system and the line;
controlling, by the rack battery management system, a semiconductor switch provided in the solid-state circuit breaker to electrically connect between the battery system and the line;
detecting, by the rack battery management system, an overcurrent above a preset magnitude from a current flowing between the battery system and the line;
controlling, by the rack battery management system, a gate driver that applies a gate voltage to the semiconductor switch according to a result of the detection to insulate between the battery system and the line;
and
controlling, by the rack battery management system, the cut-off switch to physically separate the solid-state circuit breaker from the line.

3 more elements

Dependencies are inferred from the claim text.

Battery protection unit and control method for battery protection unit

Life of this patent

Battery protection unit and control method for battery protection unit

Life of this patent

Abstract

Claims15