公开(公告)号：US20230396196A1

公开(公告)日：2023-12-07

申请号：US18032712

申请日：2020-11-11

Applicant: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY

Inventor： So Young SUNG ,  Hee Jin KANG ,  Hyung Won SHIM ,  Youngshik KIM ,  Yunho KIM ,  Jang Pyo HONG

IPC: H02P21/13 ,  G01R31/34 ,  G01R19/00 ,  H02P21/22

CPC classification number: H02P21/13 ,  G01R31/34 ,  G01R19/0092 ,  H02P21/22

Abstract: Provided, according to one embodiment, is a method for determining a current of an electric motor or a generator, the method comprising the steps of: acquiring characteristics of a filter for eliminating noise occurring in a process for determining a current of an electric motor or a generator; determining a time delay caused by the filter, on the basis of a change in a phase indicating the characteristics of the filter, the change resulting from a change in an operating frequency of the electric motor or the generator; and determining the current of the electric motor or the generator by compensating the time delay.

公开(公告)号：US20230174214A1

公开(公告)日：2023-06-08

申请号：US17607269

申请日：2020-08-29

Applicant: Korea Institute of Ocean Science & Technology

Inventor： Hee Jin KANG ,  Young Shik KIM ,  Hyung Won SHIM ,  So Young SUNG ,  Jang Pyo HONG ,  Yun Ho KIM

IPC: B63H21/17 ,  G01M10/00 ,  G01M15/04 ,  H01M8/04313

CPC classification number: B63H21/17 ,  G01M10/00 ,  G01M15/04 ,  H01M8/04313 ,  B63H2021/205

Abstract: Provided are a marine testbed and a marine test method for providing marine verification and securing a track record of an eco-friendly propulsion system for a ship, wherein the marine testbed and the marine test method test and evaluate applicability of a hybrid propulsion system to the ship and facilitate securing of a track record, the hybrid propulsion system utilizing a battery, a fuel cell, a zero-carbon fuel engine, a zero-carbon fuel mixed-combustion engine, and a heterogeneous eco-friendly alternative fuel for the ship which are essential for developing an eco-friendly ship.

公开(公告)号：US20190009996A1

公开(公告)日：2019-01-10

申请号：US15576754

申请日：2017-02-28

Applicant: KOREA INSTITUTE OF OCEAN SCIENCE&TECHNOLOGY

Inventor： Jong Won PARK ,  So Young SUNG ,  Jung Hee LEE ,  Yong Kon LIM

IPC: B65G63/00 ,  G01N23/04 ,  B65G49/00

Abstract: The present invention relates to a container search system comprising: a radiation irradiation unit for irradiating radiation to a container to be inspected; a detection unit installed opposite to the radiation irradiation unit to detect radiation having passed through a container; a transfer cart for loading an automobile thereon, on which a container to be inspected is loaded, and travelling along a search path formed between the radiation irradiation unit and the detection unit; and a circulation orbit unit formed to allow the transfer cart to circulate along the search path, wherein a primary side of a linear induction motor for generating a moving magnetic field is formed on either side among the transfer cart and the search path and a secondary-side reaction plate for inducing a secondary eddy current due to the moving magnetic field and generating a linear driving force is formed on the other side thereof. The container search system can transfer a transfer cart according to a linear motor scheme in a radiation search section, and thus can obtain a radiation search image of high quality.

公开(公告)号：US20160197568A1

公开(公告)日：2016-07-07

申请号：US14905998

申请日：2014-07-22

Applicant: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY

Inventor： So Young SUNG ,  Jong Won PARK ,  Yong Kon LIM ,  Seung Geun KIM

IPC: H02P6/15

CPC classification number: H02P6/15 ,  H02P6/06 ,  H02P6/18 ,  H02P21/14 ,  Y02P80/116

Abstract: The present invention relates to a driving apparatus for a motor. The driving apparatus for the motor is provided with a rotor position detection unit for detecting position information of a rotor of the motor, a motor driving unit for driving the motor by applying current to the motor, a current detection unit for detecting a current that is applied to the motor, a filter for removing noise included in a signal outputted from the current detection unit and outputting the signal, and a motor control unit for outputting, to the motor driving unit, a motor driving control signal in which the time delay from the filter is recorded and which compensates for the time delay to the signal from the filter. Using the driving apparatus for the motor, the drive of the motor can be controlled so as to compensate for the time delay from the filter using a value that is calculated in advance and memorised, thereby improving driving efficiency.

Abstract translation: 本发明涉及电动机的驱动装置。 电动机的驱动装置设置有用于检测电动机的转子的位置信息的转子位置检测单元，通过向电动机施加电流来驱动电动机的电动机驱动单元，检测电动机的电流的电流检测单元 施加到所述电动机的滤波器，用于去除从所述电流检测单元输出的信号中包含的噪声并输出所述信号的滤波器;以及电动机控制单元，用于向所述电动机驱动单元输出电动机驱动控制信号， 滤波器被记录并且补偿来自滤波器的信号的时间延迟。 使用电动机的驱动装置，可以控制电动机的驱动，以便使用预先计算并记忆的值补偿来自过滤器的时间延迟，从而提高驱动效率。