公开(公告)号：US09929666B2

公开(公告)日：2018-03-27

申请号：US15073985

申请日：2016-03-18

Applicant: LSIS CO., LTD.

Inventor： Eung Soo Kim ,  Jong Bae Kim ,  Seung Hun Lee

IPC: H02M5/44 ,  H02J3/36 ,  H02J13/00

CPC classification number: H02M5/44 ,  H02J3/36 ,  H02J13/0096 ,  Y02E60/60

Abstract: A data processing device for a high voltage direct current (HVDC) transmission system is provided. The data processing device includes a plurality of measuring interface systems (MIS) for measuring a voltage or current in an HVDC transmission system; a bus for transmitting data on the plurality of MISs; and an optical distribution module (ODM) transmitting the data transmitted through the bus to the HVDC transmission system, wherein the plurality of MISs increases counter values according to a data transmission completion signal of the ODM, and an MIS corresponding to the counter value among the plurality of MISs transmits data to the ODM through the bus.

公开(公告)号：US10530158B2

公开(公告)日：2020-01-07

申请号：US15461373

申请日：2017-03-16

Applicant: LSIS CO., LTD.

Inventor： Seung Hun Lee

IPC: H02J3/18 ,  G05B23/02

Abstract: A control device for a static var compensator (SVC) includes: a monitoring control unit configured to generate an error presence/absence signal based on a control signal inputted from a system controller; a valve signal processing unit configured to generate a valve state signal based on databack signals respectively inputted from a plurality of valves; a CPU control unit configured to generate a state information signal based on the error presence/absence signal and the valve state signal; and a firing signal output control unit configured to generate a firing signal according to the state information signal.

公开(公告)号：US09847637B2

公开(公告)日：2017-12-19

申请号：US14684133

申请日：2015-04-10

Applicant: LSIS CO., LTD.

Inventor： Eung Soo Kim ,  Jong Bae Kim ,  Seung Hun Lee

IPC: H02J1/10 ,  H02J1/00 ,  H02J3/00 ,  H02J3/36 ,  H02J13/00

CPC classification number: H02J1/00 ,  H02J3/006 ,  H02J3/36 ,  H02J13/00 ,  Y02E60/60 ,  Y04S10/525

Abstract: A changeover method of a high voltage direct current (HVDC) transmission system is provided. A first system is set to an active state. A ready signal is transmitted from the first system to a first COL. A ready detection signal and an active signal are transmitted to the first system, in response to the ready signal. A confirm signal is transmitted to the first system in response to the active signal when the ready detection signal matches the ready signal.

公开(公告)号：US10122291B2

公开(公告)日：2018-11-06

申请号：US15057353

申请日：2016-03-01

Applicant: LSIS CO., LTD.

Inventor： Seung Hun Lee ,  Jong Bae Kim ,  Eung Soo Kim

IPC: H02M5/42 ,  G05B9/03 ,  H02H7/30 ,  H02H7/26 ,  H02H3/08 ,  H02H1/00

Abstract: A redundant control device of a high voltage direct current (HVDC) transmission system is provided. The redundant control device includes a first system and a second system that performs a function corresponding to that of the first system; and a first change over logic (COL) and a second COL that determine whether to switch between the first system and the system, wherein there are optical communication modules between the first system and the first COL, between the first COL and the second COL, and between the second system and the second COL to transmit and receive data, and the first COL and the second COL includes a monitoring control unit that checks a connection or wiring state of the optical communication modules and validity of transmission data.

公开(公告)号：US09948105B2

公开(公告)日：2018-04-17

申请号：US15221480

申请日：2016-07-27

Applicant: LSIS CO., LTD.

Inventor： Seung Hun Lee ,  Jong Bae Kim

IPC: H04B10/40 ,  H04B10/80 ,  H04J3/06 ,  H04L7/00 ,  H02J3/36 ,  G01R19/25 ,  H02J13/00 ,  H02M5/458

CPC classification number: H02J3/36 ,  G01R19/2513 ,  H02J13/0086 ,  H02M5/4585 ,  H04B10/40 ,  H04B10/807 ,  H04J3/0644 ,  H04J3/0661 ,  H04L7/0075 ,  Y02E60/60

Abstract: Disclosed embodiments relate to a data control system. In some embodiments, the data control system includes a transmission module configured to add synchronization signal information to data included in a first data stream to generate a second data stream, and a plurality of control modules configured to receive the second data stream from the transmission module. In some embodiments, the data includes power information.

公开(公告)号：US09866027B2

公开(公告)日：2018-01-09

申请号：US14597057

申请日：2015-01-14

Applicant: LSIS CO., LTD.

Inventor： Seung Hun Lee ,  Eung Soo Kim ,  Jong Bae Kim

IPC: H03M13/00 ,  H02J3/36 ,  H02M5/40 ,  H04L1/20

CPC classification number: H02J3/36 ,  H02M5/40 ,  H04L1/20 ,  Y02E60/60

Abstract: A device for controlling a high voltage direct current (HVDC) transmission system is provided. The device includes: a communication unit communicating with a control device; a control unit obtaining a databack signal received through the communication unit, checking a data line error and a line connection error based on an obtained databack signal, and outputting a valve control signal based on the databack signal; and an output unit outputting the valve control signal to a valve control device based on control of the control unit.