公开(公告)号：US20230034870A1

公开(公告)日：2023-02-02

申请号：US17772632

申请日：2020-03-18

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jiheon LEE ,  Dongjin YUN ,  Dohyun KIM ,  Jihong KIM ,  Minjun PARK ,  Wonseok DO

IPC: H02J9/06 ,  H02M7/145 ,  H02M1/00

Abstract: The present disclosure relates to an uninterruptible power supply (UPS) system and, more specifically, to a static transfer switch (STS) that can be applied to a UPS module, the static transfer switch comprising: one semiconductor rectifying element connected to either the anode terminal or the cathode terminal of a direct current power source; a bypass circuit for connecting the input terminal and the output terminal of the semiconductor rectifying element so as to bypass the semiconductor rectifying element; a breaker for opening or closing the bypass circuit; and a switch including a control unit, which controls the semiconductor rectifying element so as to conduct current when a preset conduction signal is received, controls the breaker so as to close the bypass circuit, and, when the bypass circuit is closed by the breaker, controls the semiconductor rectifying element so as to stop the conduction of current.

公开(公告)号：US20220115902A1

公开(公告)日：2022-04-14

申请号：US17275557

申请日：2019-09-10

Applicant: LS ELECTRIC CO., LTD.

Inventor： Minjun PARK ,  Dongjin YUN ,  Jihong KIM ,  Dohyun KIM ,  Kwangkyu HWANG

IPC: H02J9/06

Abstract: The present specification relates to a power supply system capable of supplying uninterruptible power, the system comprising a plurality of circuit breakers for controlling the connections between a plurality of power source modules, to control power demand and supply through opening or closing of the circuit breakers according to various situations occurring in the system, so as to enable a UPS function between the plurality of power source modules.

公开(公告)号：US20220069614A1

公开(公告)日：2022-03-03

申请号：US17275019

申请日：2019-09-11

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jihong KIM ,  Kwangkyu HWANG ,  Dohyun KIM ,  Minjun PARK

IPC: H02J9/06 ,  H02J3/38 ,  H02H1/00 ,  H02H7/26

Abstract: The present specification relates to an uninterruptible power supply device, an uninterruptible power supply system and a method for controlling the uninterruptible power supply system, and relates to a power supply device comprising a circuit breaker for switching connection to a power bus, thereby controlling the reception and supply of the power by opening and closing the circuit breaker according to various situations occurring in a system, a power supply system and a method for controlling the power supply system.