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1.发明公开公开(公告)号：US20240006980A1
公开(公告)日：2024-01-04
申请号：US18354397
申请日：2023-07-18
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Meng WU , Guiying LIN , Jinfeng GAO
CPC classification number: H02M1/0067 , H02M1/36 , H02M3/33576 , H02M3/33573 , H02J7/00712 , H02J2207/20
Abstract: A series-parallel switching method and apparatus, a power conversion circuit, and an electronic device are provided. The power conversion circuit includes a control unit and two power conversion modules. The two power conversion modules are connected in series or connected in parallel. Either of the power conversion modules includes output terminals and first switch branches, where the first switch branches are connected to the output terminals, and the output terminals are configured to connect to a load. The first switch branches are connected to the control unit, and the first switch branches are configured to switch an operating state according to a control signal output by the control unit, to provide an energy discharge loop when the two power conversion modules are switched from a parallel connection to a series connection, where the operating state includes a stopping state and a running state.
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公开(公告)号：US20230035744A1
公开(公告)日：2023-02-02
申请号：US17562286
申请日：2021-12-27
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jinfeng GAO , Chen QI , Xiyang ZUO , Xiaojian HUANG
Abstract: Embodiments of the present application provide a charging and discharging device. The charging and discharging device includes an AC/DC converter, a first DC/DC converter, a second DC/DC converter and a control unit. The control unit is used to: receive a first charging request, the first charging request including a first charging voltage and a first charging current; set output power of the first DC/DC converter based on the first charging voltage and the first charging current; turn on the second DC/DC converter if an SOC of the energy storage unit is greater than a first threshold to charge the battery by the energy storage unit; and adjust output power of the second DC/DC converter, so as to enable a voltage difference between a bus voltage and a bus balance voltage of the charging and discharging device to be less than or equal to a preset value.
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3.发明公开公开(公告)号：US20230283162A1
公开(公告)日：2023-09-07
申请号：US18315893
申请日：2023-05-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qinyuan TIAN , Huanle ZHOU , Sigui ZHANG , Jinfeng GAO , Meng LI
CPC classification number: H02M1/0051 , H02M3/33515 , H02M1/0012 , H02M1/0009
Abstract: A control method includes determining an error value of a reverse input current of a phase-shifted full-bridge circuit based on sampling and reference values of the reverse input current, determining a compensation control quantity of a switch drive signal of the phase-shifted full-bridge circuit based on the error value. The compensation control quantity corresponds to a period or a duty cycle of the switch drive signal. The method further includes determining period and duty cycle control quantities of the switch drive signal based on the compensation control quantity. The period control quantity is within a value range of the period of the switch drive signal, and the duty cycle control quantity is within a value range of the duty cycle of the switch drive signal. The method also includes controlling the switch drive signal based on the period control quantity and the duty cycle control quantity.
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公开(公告)号：US20230253886A1
公开(公告)日：2023-08-10
申请号：US18187112
申请日：2023-03-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuan YAO , Weichen HE , Guiying LIN , Huaisen ZHANG , Jinfeng GAO , Yu YAN
CPC classification number: H02M3/3353 , H02M3/01
Abstract: A voltage conversion circuit includes an N-level conversion unit and N-1 DC-DC conversion units. The N-level conversion unit includes N output terminals at different levels. A first input terminal of the Mth DC-DC conversion unit is connected to the Mth output terminal of the N-level conversion unit, and a second input terminal of the Mth DC-DC conversion unit is connected to an (M+1)th output terminal of the N-level conversion unit. An output level of the Mth output terminal and an output level of the (M+1)th output terminal are adjacent levels. N and M are positive integers and satisfy N ≤ 3 and 1 ≥ M
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公开(公告)号：US20230037865A1
公开(公告)日：2023-02-09
申请号：US17562562
申请日：2021-12-27
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaojian HUANG , Zhimin DAN , Xianxi PAN , Jinfeng GAO
IPC: B60L58/27 , H01M10/615 , H01M10/44 , H01M10/625
Abstract: The present application provide a control method of a power battery heating system. The method includes: controlling all upper bridge arms of a first bridge arm group and all lower bridge arms of a second bridge arm group to be turned on, and all lower bridge arms of the first bridge arm group and all upper bridge arms of the second bridge arm group to be turned off, so as to form a first loop; controlling all the lower bridge arms of the first bridge arm group and all the upper bridge arms of the second bridge arm group to be turned on, and all the upper bridge arms of the first bridge arm group and all the lower bridge arms of the second bridge arm group to be turned off, so as to form a second loop. The method is used to heat the power battery.
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Patent Agency Ranking
公开(公告)号：US20230268755A1
公开(公告)日：2023-08-24
申请号：US18067106
申请日：2022-12-16
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Tianyi HUANG , Xianxi PAN , Jinfeng GAO , Jinbo CAI
CPC classification number: H02J7/00712 , H02J7/0013 , H02J7/0048 , H01M10/441 , H01M10/425 , H02J2207/20
Abstract: An energy storage system includes a first energy storage branch and a second energy storage branch connected in parallel. The first energy storage branch includes a first battery cluster. The second energy storage branch includes a second battery cluster and a DC/DC converter connected to the second battery cluster in series, with an output end of the DC/DC converter being connected to the second battery cluster. The DC/DC converter is configured to adjust an output current of the second energy storage branch to balance an output current of the first energy storage branch and the output current of the second energy storage branch.
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公开(公告)号：US20230041713A1
公开(公告)日：2023-02-09
申请号：US17563207
申请日：2021-12-28
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaojian HUANG , Zhimin DAN , Jinfeng GAO , Jin HUANG
IPC: B60L58/27 , B60L1/02 , B60L58/12 , H01M10/615 , H01M10/625
Abstract: The present application provide a control method of a power battery heating system. The method includes: controlling all upper bridge arms of a first bridge arm group and all lower bridge arms of a second bridge arm group to be turned on, and controlling all lower bridge arms of the first bridge arm group and all upper bridge arms of the second bridge arm group to be turned off, so as to form a first loop; controlling all the lower bridge arms of the first bridge arm group and all the upper bridge arms of the second bridge arm group to be turned on, and controlling all the upper bridge arms of the first bridge arm group and all the lower bridge arms of the second bridge arm group to be turned off, so as to form a second loop. The method is used to heat the power battery.
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公开(公告)号：US20220345023A1
公开(公告)日：2022-10-27
申请号：US17856453
申请日：2022-07-01
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jinfeng GAO , Guiying LIN , Weichen HE , Zhimin DAN , Lijun HANG , Yuanbin HE , Ke CHEN , Jiarui LIAO
Abstract: Embodiments of this application provide a converter control method, a converter control apparatus, and a readable storage medium. The control method includes: obtaining a real-time input voltage and a real-time output voltage of a converter; determining a corresponding real-time closed-loop control output value of the converter based on the real-time input voltage and the real-time output voltage by using a closed-loop control algorithm; determining a real-time control strategy of a switch tube of the converter from at least three control strategies based on the real-time closed-loop control output value; and controlling the switch tube based on the determined real-time control strategy. The control method is used to implement efficient and high-precision voltage stabilization control.
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公开(公告)号：US20240014726A1
公开(公告)日：2024-01-11
申请号：US18471291
申请日：2023-09-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Guiying LIN , Meng WU , Jinfeng GAO
CPC classification number: H02M1/0012 , H02M7/2173
Abstract: A method for controlling a rectifier includes determining reactive power and active power according to sampled voltages and sampled currents of a three-phase alternating current signal, determining given active power according to a given voltage and a sampled voltage of a direct current signal, determining a target voltage vector for model predictive control according to the active power, the reactive power, the given active power, and a damping-injected Hamiltonian dissipative model, performing the model predictive control according to the target voltage vector to obtain a control signal for the rectifier, and controlling the rectifier according to the control signal.
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公开(公告)号：US20240010103A1
公开(公告)日：2024-01-11
申请号：US18370418
申请日：2023-09-20
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhanliang LI , Yu YAN , Zhimin DAN , Xinwei CHEN , Yuanmiao ZHAO , Xiaojian HUANG , Jinfeng GAO
CPC classification number: B60L58/27 , H02J7/007194 , H02J7/00714 , H02J7/007182 , H02J7/0047 , B60L2210/10 , H02J2207/20
Abstract: Embodiments of the present application provide a battery heating method, a charging device, and a battery management system, which can effectively heat a power battery. The method may be performed by a charging device, the method including: receiving first instruction information from a control device of a power battery before the charging device charges the power battery, where the first instruction information may be used to instruct the charging device to heat the power battery; and heating the power battery according to the first instruction information.
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