公开(公告)号：US11984815B2

公开(公告)日：2024-05-14

申请号：US17825211

申请日：2022-05-26

申请人： North Carolina State University

发明人： M A Awal ,  Srdjan Lukic ,  Iqbal Husain

IPC分类号： H02M7/217 ,  H02M1/00 ,  H02M1/04 ,  H02M1/12 ,  H02M1/36 ,  H02M3/335 ,  H02M7/219 ,  H02M7/797

CPC分类号： H02M7/2173 ,  H02M1/0012 ,  H02M1/0067 ,  H02M1/007 ,  H02M1/0074 ,  H02M1/045 ,  H02M1/12 ,  H02M1/36 ,  H02M3/33573 ,  H02M3/33584 ,  H02M7/219 ,  H02M7/797

摘要： Disclosed herein is a modular, scalable, and galvanically isolated power electronics converter topology for medium voltage AC (MVAC) to DC or high voltage AC (HVAC) to DC power conversion. A disclosed modular converter can comprise a low-voltage direct current bus and a centralized controller configured to regulate the low-voltage direct current bus. The modular converter can further comprise a plurality of three-phase blocks connected in series. Individual three-phase blocks of the plurality of three-phase blocks can comprise a plurality of single-phase modules connected in an input-series output-parallel configuration. The modular converter can further comprise a filter connected between a grid input and the plurality of three-phase blocks and a pulse-width modulator configured to generate encoded gate pulses for the individual three-phase blocks of the plurality of three-phase blocks.

公开(公告)号：US20240154513A1

公开(公告)日：2024-05-09

申请号：US18381592

申请日：2023-10-18

申请人： Delta Electronics (Shanghai) Co., Ltd.

发明人： Peng Xiao ,  Yi Zhang

IPC分类号： H02M1/00 ,  H02M1/32 ,  H02M7/217

CPC分类号： H02M1/0003 ,  H02M1/32 ,  H02M7/2173

摘要： A modular multilevel converter and a control method are provided. When an AC input voltage from a power grid is lower than a drop threshold value and the modular multilevel converter is in a drop state, the idle upper bridge arm submodules of the n upper bridge arm submodules and the idle lower bridge arm submodules of the n lower bridge arm submodules are in the on-state. Consequently, the total number of the on-state upper bridge arm submodules and the on-state lower bridge arm submodules is increased to be greater than n. Since the average value of the DC voltages received by the upper bridge arm submodules or the lower bridge arm submodules is decreased, the voltage stress of the total submodule capacitor voltage of the on-state upper bridge arm submodules and the on-state lower bridge arm submodules is reduced.

公开(公告)号：US20240136939A1

公开(公告)日：2024-04-25

申请号：US18489268

申请日：2023-10-17

申请人： Huawei Digital Power Technologies Co., Ltd.

发明人： Yuchen ZHOU

IPC分类号： H02M7/217 ,  H02M1/42 ,  H02M7/04 ,  H02M7/219

CPC分类号： H02M7/2173 ,  H02M1/4233 ,  H02M1/4266 ,  H02M7/05 ,  H02M7/219 ,  B60L53/53

摘要： A charging module and a charging device. The charging module includes a three-phase rectifier module, a bus capacitor module, an inductor, and a controller. An input end of the three-phase rectifier module is electrically connected to an input power supply, and an output end of the three-phase rectifier module is electrically connected to an input end of the bus capacitor module. The bus capacitor module includes a first bus capacitor and a second bus capacitor. The first bus capacitor is connected between a first output end of a three-phase bridge arm and a midpoint of the three-phase bridge arm, and the second bus capacitor is electrically connected between a second output end of the three-phase bridge arm and the midpoint. The inductor is electrically connected to the midpoint of the three-phase bridge arm and a midpoint between the first bus capacitor and the second bus capacitor.

公开(公告)号：US20240106340A1

公开(公告)日：2024-03-28

申请号：US18370185

申请日：2023-09-19

申请人： AA Power Inc.

发明人： Qun Lu

IPC分类号： H02M7/00 ,  H02M1/00 ,  H02M7/04 ,  H02M7/217

CPC分类号： H02M7/003 ,  H02M1/007 ,  H02M7/05 ,  H02M7/2173

摘要： An apparatus includes, on a top layer of a circuit board, a first and a second synchronous rectifier groups (SRGs) placed along first two opposite sides of a first phase of a transformer including three phases. A second and a fourth SRGs are placed along the first two opposite sides on a bottom layer of the circuit board. The first and second SRGs are connected between a first terminal of the first phase and a grounding terminal. The third and fourth SRGs are connected between a second terminal of the first phase and the grounding terminal. Two filter capacitor groups are placed along second two opposite sides of the first phase on the top layer. Another two filter capacitor groups are placed along the second two opposite sides on the bottom layer. The four filter capacitor groups are connected to a third terminal of the first phase.

公开(公告)号：US20240014726A1

公开(公告)日：2024-01-11

申请号：US18471291

申请日：2023-09-21

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

发明人： Guiying LIN ,  Meng WU ,  Jinfeng GAO

IPC分类号： H02M1/00 ,  H02M7/217

CPC分类号： H02M1/0012 ,  H02M7/2173

摘要： 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.

公开(公告)号：US20230155518A1

公开(公告)日：2023-05-18

申请号：US17995836

申请日：2021-04-12

申请人： PRODRIVE TECHNOLOGIES INNOVATION SERVICES B.V.

发明人： Jordi EVERTS

IPC分类号： H02M7/219 ,  H02M7/487 ,  H02M1/42 ,  H02M7/217 ,  H02J7/04

CPC分类号： H02M7/219 ,  H02M7/487 ,  H02M1/4216 ,  H02M1/4225 ,  H02M7/2173 ,  H02J7/04

摘要： An electrical converter may include (i) m=3 phase input terminals, a neutral terminal and two output terminals, (ii) a first power stage comprising a bridge rectifier connected to each of the m phase input terminals and an output connected to an upper intermediate node and a lower intermediate node, (iii) a second power stage comprising an upper boost stage connected between the upper intermediate node and a common node, and a lower boost stage connected between the common node and the lower intermediate node, and (iv) a controller configured to operate according to a first mode of operation for converting the multi-phase AC input to the DC output or vice versa and according to a second mode of operation for converting a single phase AC input applied to at least one of the m phase input terminals and the neutral terminal to the DC output.

公开(公告)号：US11652403B2

公开(公告)日：2023-05-16

申请号：US17395039

申请日：2021-08-05

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Shuhei Chizuwa

IPC分类号： H02M1/42 ,  H02M1/14 ,  H02M7/217 ,  H02M3/158

CPC分类号： H02M1/4225 ,  H02M1/143 ,  H02M3/158 ,  H02M7/2173

摘要： A switching power source device includes a plurality of power source circuits including a first power source circuit corresponding to a first phase of an external power source, and a second power source circuit corresponding to a second phase of the external power source that is different from the first phase; a first switching circuit capable of switching between a plurality of connection modes including a first mode of connecting the second power source circuit to the first phase in parallel with the first power source circuit, and a second mode of connecting the second power source circuit to the second phase; a memory; and a hardware processor coupled to the memory, the hardware processor being configured to open and close a switching element included in the first power source circuit and a switching element included in the second power source circuit, in different phases in the first mode.

公开(公告)号：US20190081481A1

公开(公告)日：2019-03-14

申请号：US16081092

申请日：2017-02-23

申请人： General Electric Technology GmbH

发明人： Robin GUPTA ,  Robert WHITEHOUSE

IPC分类号： H02J3/36 ,  H02M7/00 ,  H02M7/483

CPC分类号： H02J3/36 ,  H02J2003/365 ,  H02M7/003 ,  H02M7/2173 ,  H02M7/2176 ,  H02M7/483 ,  H02M2001/123 ,  H02M2007/4835 ,  Y02E60/60

摘要： An electrical assembly includes a power converter having first and second DC terminals which are connectable to a DC electrical network. The power converter also includes converter limbs connected between the first and second DC terminals. Each converter limb includes an AC terminal that is connectable to a respective AC phase of a multi-phase AC electrical network. Each converter limb also includes limb portions, each connected between a corresponding AC terminal and a respective one of the first and second DC terminals. Each limb portion includes switching element(s). The electrical assembly includes a single grounding circuit having a reactor configured to provide a current path for alternating current with a high impedance to ground and a current path for direct current with a low impedance to ground. The grounding circuit is arranged so that only one of the AC phases is connected to ground via the grounding circuit.

公开(公告)号：US20180342962A1

公开(公告)日：2018-11-29

申请号：US16054876

申请日：2018-08-03

申请人： Weilun CHEN

发明人： Weilun CHEN ,  STEVE JUN CHEN

IPC分类号： H02M7/217 ,  H02M7/219 ,  H02M3/335

CPC分类号： H02M7/2173 ,  H02M3/33569 ,  H02M7/217 ,  H02M7/219

摘要： A single-stage three-phase power supply conversion device includes a three-phase rectification and commutation module and a DC/DC conversion module; the three-phase rectification and commutation module has a three-phase AC connection end, a DC source first connection end, a DC source second connection end and a DC source third connection end, and the DC/DC conversion module has a first connection end. a second connection end, a third connection end, a DC source positive connection end and a DC source negative connection end; a three-phase AC source is connected to the three-phase AC connection end of the three-phase rectification and commutation module, the DC source first connection end of the three-phase rectification and commutation module is connected to the first connection end of the DC/DC conversion module, the DC source second connection end is connected to the second connection end of the DC/DC conversion module.

公开(公告)号：US20180287508A1

公开(公告)日：2018-10-04

申请号：US15938280

申请日：2018-03-28

申请人： LAPIS Semiconductor Co., Ltd.

发明人： Takashi NAKAMURA

IPC分类号： H02M7/217 ,  H03K17/687

CPC分类号： H02M7/2173 ,  H02M7/217 ,  H02M2001/0048 ,  H03K17/687 ,  H03K17/693 ,  H03K2217/0018

摘要： A rectifier circuit is configured to receive first and second alternate current (AC) signals that have opposite phases. The rectifier circuit includes a first half-wave rectifier circuit that includes a first metal-oxide-semiconductor (MOS) transistor and a second MOS transistor connected in series, and performs half-wave rectification on the first AC signal to generate a first direct current (DC) signal, a second half-wave rectifier circuit that includes a third MOS transistor and a fourth MOS transistor connected in series, and performs the half-wave rectification on the second AC signal to generate a second DC signal, the first DC signal and the second DC signal being outputted by the rectifier circuit to a load, and a body potential setting circuit configured to set a body potential of each of the first MOS transistor, the second MOS transistor, the third MOS transistor, and the fourth MOS transistor.