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公开(公告)号：US20230097935A1
公开(公告)日：2023-03-30
申请号：US17872270
申请日：2022-07-25
发明人： Jee Heon Kim , Dong Gyun Woo , Chul Soon Kim , Hui Sung Jang , Sung Uk Park
摘要： An embodiment control device includes a voltage controller configured to output an input current command value of a power factor correction (PFC) based on an output voltage and an output voltage command value of the PFC, a current controller configured to control an input current of the PFC by determining a switching duty of the PFC based on the input current command value, and a current command upper limit generator configured to output an input current command upper limit value of the PFC based on an input current limit value and an input current command offset value of the PFC, wherein the input current command upper limit value has an alternating current (AC) component.
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公开(公告)号：US20220368224A1
公开(公告)日：2022-11-17
申请号：US17509721
申请日：2021-10-25
发明人： Shin Hye Chun , Dong Gyun Woo
摘要： A device for controlling a converter has a first output variable and a second output variable adjusted by a duty of a switching element. The device includes a first controller that generates a first duty based on a first error between a predetermined limitation reference value corresponding to a reference value limiting a size of the first output variable and a measurement value of the first output variable measured at a load of a converter. A second controller generates a second duty based on a second error between a predetermined reference value of the second output variable and a measurement value of the second output variable measured at the load of the converter. A duty determination unit derives a final duty of the switching element based on the first duty and the second duty.
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公开(公告)号：US20220209652A1
公开(公告)日：2022-06-30
申请号：US17503936
申请日：2021-10-18
发明人： Jee Heon Kim , Hyun Wook Seong , Sung Uk Park , Chul Soon Kim , Hui Sung Jang , Dong Gyun Woo
摘要： An apparatus for controlling a power factor correction circuit of a charger for charging a vehicle batter is configured to correct a power factor of an input AC voltage through switching of a switching element. The apparatus for controlling the power factor correction circuit includes: a phase angle detection unit configured to detect phase angle information of the input AC voltage; and a frequency determination unit configured to synchronize a period in which a preset frequency variation value varies, with a period of the input AC voltage by applying the phase angle information to the frequency variation value, and determine, as a switching frequency of the switching element, a value obtained by applying the synchronized frequency variation value to a preset fundamental frequency value.
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公开(公告)号：US20220209552A1
公开(公告)日：2022-06-30
申请号：US17473333
申请日：2021-09-13
发明人： Sung Uk Park , Hyun Wook Seong , Dong Gyun Woo , Chul Soon Kim , Hui Sung Jang , Jee Heon Kim
摘要： A device for supplying power from a vehicle battery to the outside is provided. The device includes an inverter circuit having a bridge circuit with multiple switching elements and that converts the received DC power into the AC power by switching the switching elements and that outputs the AC power. A controller controls an on/off state of each switching element through pulse width modulation. When an output AC output to the load has a value greater than a preset reference value or an input direct current input into the inverter has a value greater than a preset reference value, the controller changes a duty of each switching element to reduce an output AC voltage output from the inverter. When the reduced output AC voltage has a value equal to or less than a preset reference value, the controller stops a power conversion operation of the inverter.
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公开(公告)号：US12027865B2
公开(公告)日：2024-07-02
申请号：US18099531
申请日：2023-01-20
发明人： Jae Hyun Kim , Dong Gyun Woo
CPC分类号： H02J3/322 , B60L55/00 , H02J3/16 , H02J7/02 , H02M1/0009 , H02M1/0043 , H02M3/33584 , B60L2210/10 , H02J2207/20
摘要： A battery charging apparatus includes a bi-directional charger including a first switching circuit connected to an AC terminal, a second switching circuit connected to a battery, and a transformer connected between the first switching circuit and the second switching circuit. The battery charging apparatus also includes a controller configured to switch a leg included in the first switching circuit based on a first carrier wave and a first duty command, configured to switch a leg included in the second switching circuit based on a second carrier wave and a second duty command, configured to adjust a phase of the second carrier wave compared to a phase of the first carrier wave by a phase shift angle according to an active power command, and configured to adjust a phase of the second duty command according to the reactive power command.
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公开(公告)号：US20240154422A1
公开(公告)日：2024-05-09
申请号：US18137525
申请日：2023-04-21
发明人： Sung Uk Park , Jae Hyun Kim , Hyun Wook Seong , Dong Gyun Woo
CPC分类号： H02J3/322 , B60L53/22 , H02J7/02 , H02M1/4216 , H02M7/797 , B60L2210/10 , H02J2207/20
摘要： A power conversion system of a battery for a vehicle includes a bidirectional charger configured to output a first active line voltage between a first active line and a neutral line and a second active line voltage between a second active line and the neutral line at different levels by converting a voltage of a battery into an AC voltage in a battery discharge mode, and a wiring swap device configured to electrically connect the first active line to a load-side first active line and to cross and electrically connect the second active line and the neutral line to a load-side neutral line and a load-side second active line, respectively.
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公开(公告)号：US11876447B2
公开(公告)日：2024-01-16
申请号：US17509721
申请日：2021-10-25
发明人： Shin Hye Chun , Dong Gyun Woo
CPC分类号： H02M3/156 , H02J7/007 , H02J2207/20
摘要： A device for controlling a converter has a first output variable and a second output variable adjusted by a duty of a switching element. The device includes a first controller that generates a first duty based on a first error between a predetermined limitation reference value corresponding to a reference value limiting a size of the first output variable and a measurement value of the first output variable measured at a load of a converter. A second controller generates a second duty based on a second error between a predetermined reference value of the second output variable and a measurement value of the second output variable measured at the load of the converter. A duty determination unit derives a final duty of the switching element based on the first duty and the second duty.
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公开(公告)号：US20240063640A1
公开(公告)日：2024-02-22
申请号：US18099531
申请日：2023-01-20
发明人： Jae Hyun Kim , Dong Gyun Woo
CPC分类号： H02J3/322 , H02J3/16 , H02M3/33584 , H02M1/0043 , H02J7/02 , H02M1/0009 , B60L55/00 , H02J2207/20 , B60L2210/10
摘要： A battery charging apparatus includes a bi-directional charger including a first switching circuit connected to an AC terminal, a second switching circuit connected to a battery, and a transformer connected between the first switching circuit and the second switching circuit. The battery charging apparatus also includes a controller configured to switch a leg included in the first switching circuit based on a first carrier wave and a first duty command, configured to switch a leg included in the second switching circuit based on a second carrier wave and a second duty command, configured to adjust a phase of the second carrier wave compared to a phase of the first carrier wave by a phase shift angle according to an active power command, and configured to adjust a phase of the second duty command according to the reactive power command.
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公开(公告)号：US11724612B2
公开(公告)日：2023-08-15
申请号：US17830543
申请日：2022-06-02
发明人： Jae Hyun Kim , Hyun-Wook Seong , Dong Gyun Woo
IPC分类号： B60L53/60 , B60L53/24 , H02M7/797 , H02J7/00 , H02J3/32 , H02M3/335 , B60L50/60 , H02M1/42 , H02P27/06
CPC分类号： B60L53/24 , B60L50/60 , H02J3/322 , H02J7/0068 , H02M1/4208 , H02M3/33573 , H02M3/33584 , H02M7/797 , B60L2210/30 , H02J2207/20 , H02J2310/48 , H02P27/06
摘要： An embodiment bidirectional charging system for a vehicle includes a first bridge circuit having a plurality of legs each including two first switching elements connected in series with each other between both ends of a battery, a transformer comprising a plurality of primary-side windings connected to a grid or load side and a plurality of secondary-side windings insulated from the plurality of primary-side windings, a motor including a plurality of input terminals configured to receive a plurality of phase voltages, respectively, a plurality of changeover switches configured to selectively connect connection nodes of the two first switching elements included in the plurality of legs to the plurality of secondary-side windings or to the plurality of input terminals, respectively, and a controller configured to control connection states of the plurality of changeover switches according to a pre-configured operation mode.
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公开(公告)号：US20230025134A1
公开(公告)日：2023-01-26
申请号：US17672985
申请日：2022-02-16
发明人： Jae Hyun Kim , Sung Uk Park , Hyun-Wook Seong , Dong Gyun Woo
摘要： An embodiment apparatus for an electric vehicle includes an indoor power outlet configured to receive power through one of a plurality of lines except for a single-phase alternating current (AC) charging line among three-phase AC input lines, a sensor configured to measure a required current of an electronic device connected to the indoor power outlet, and a controller configured to control a bidirectional on board charger of the electric vehicle based on the required current.
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