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：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.

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：US09583645B2

公开(公告)日：2017-02-28

申请号：US14316555

申请日：2014-06-26

Applicant: LSIS CO., LTD.

Inventor： Dong Hyun Kim ,  Jong Kug Seon ,  Jong Bae Kim

IPC: H01L31/02 ,  G05F1/67 ,  H01L31/042 ,  G01R31/40 ,  H02S40/32

CPC classification number: H01L31/02021 ,  G05F1/67 ,  H02S40/00 ,  H02S40/32 ,  H02S50/00 ,  Y02E10/58

Abstract: Disclosed is a photovoltaic system including a power optimizer, capable of minimizing noise occurring due to shading, an error in an output power of a photovoltaic module, etc. while a maximum power point tracking (MPPT) algorithm is performed. The photovoltaic system includes a photovoltaic module; a power optimizer; and an inverter, wherein the power optimizer includes: an input unit configured to receive an output power of the photovoltaic module; a sensing unit configured to sense an output voltage and an output current of the photovoltaic module; and a controller configured to control an output of the power optimizer, by comparing the presently-sensed current with a previously-sensed current.

Abstract translation: 公开了一种包括功率优化器的光伏系统，其能够在执行最大功率点跟踪（MPPT）算法的同时最小化由于阴影引起的噪声，光伏模块的输出功率的误差等。 光伏系统包括光伏模块; 电源优化器; 以及逆变器，其中所述功率优化器包括：被配置为接收所述光伏模块的输出功率的输入单元; 感测单元，被配置为感测所述光伏模块的输出电压和输出电流; 以及控制器，被配置为通过将当前感测的电流与先前感测的电流进行比较来控制功率优化器的输出。

公开(公告)号：US08760200B2

公开(公告)日：2014-06-24

申请号：US13857056

申请日：2013-04-04

Applicant: LSIS Co., Ltd.

Inventor： Jae Seok Choung ,  Gyoung Hun Nam ,  Sung Hee Kang ,  Jong Bae Kim

IPC: H03B1/00 ,  H03K3/00

CPC classification number: H03K17/161 ,  H03K17/04123 ,  H03K17/06 ,  H03K19/01721

Abstract: A gate driving apparatus according to the embodiment includes a first switching device, a second switching device that outputs a signal to charge a capacitance of the first switching device, a third switching device connected in parallel to the second switching device to prevent a drop of a voltage output from the second switching device, and a fourth switching device that outputs a signal to discharge the capacitance of the first switching device. An NMOS transistor is used as a main switching device and a PMOS transistor connected in parallel to the NMOS transistor is used as a sub-switching device, so that the chip size is reduced without dropping the output voltage of the gate driving apparatus. The loss of the switching device is prevented by preventing the output voltage of the gate driving apparatus from being dropped.

Abstract translation: 根据实施例的门驱动装置包括第一开关装置，输出用于对第一开关装置的电容充电的信号的第二开关装置，与第二开关装置并联连接的第三开关装置，以防止第 从第二开关装置输出的电压;以及第四开关装置，其输出用于放电第一开关装置的电容的信号。 使用NMOS晶体管作为主开关器件，并且将与NMOS晶体管并联连接的PMOS晶体管用作子开关器件，从而在不降低栅极驱动器件的输出电压的情况下降低芯片尺寸。 通过防止栅极驱动装置的输出电压下降来防止开关装置的损耗。