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公开(公告)号：EP3244526B1
公开(公告)日：2018-12-05
申请号：EP17168352.7
申请日：2017-04-27
发明人： SHEN, Dingkun , ZHENG, Jianfei , XU, Wei , YING, Jianping , WEI, Lan , HU, Zhiming
CPC分类号： H02M1/083 , H02M1/14 , H02M7/487 , H02M7/49 , H02M2001/0025 , H02M2007/4835
摘要： A hybrid topology power converter (1) includes a three-level circuit module (2) and a cascaded H-bridge circuit module (3). A control method includes the following steps. Firstly, a zero sequence component (S) is injected into a total modulation wave (P), thereby generating a compensated total modulation wave (P1). Then, a first voltage signal (Vsg) is generated according to the compensated total modulation wave (P1). An H-bridge modulation wave (P2) is generated according to the compensated total modulation wave (P1) and the first voltage signal (Vsg). A three-level driving signal (Vg1) is generated according to the first voltage signal (Vsg), and an H-bridge driving signal (Vg2) is generated according to the H-bridge modulation wave (P2). A duty cycle of at least one switch element of the three-level circuit module (2) is adjusted according to the three-level driving signal (Vg1). A duty cycle of at least one switch elements of the cascaded H-bridge circuit module (3) is adjusted according to the H-bridge driving signal (Vg2).
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公开(公告)号：EP3916975A3
公开(公告)日：2022-01-19
申请号：EP21171009.0
申请日：2021-04-28
发明人： LIU, Teng , YING, Jianping , QIAO, Lifeng , WANG, Xin , XIAO, Hongwei
IPC分类号： H02M1/00 , H02M1/088 , H02M3/00 , H02M3/335 , H02M5/458 , H02M7/08 , H02M7/23 , H02M7/48 , H02M7/487 , H02M7/493
摘要： Embodiments of the present invention provide a conversion device connected between an alternating current (AC) power grid and a load, wherein the conversion device comprises: an inductor electrically connected to the AC power grid; a first-stage converter having a first terminal electrically connected to the inductor and a second terminal electrically connected to a bus, and the first-stage converter being configured to output a bus voltage according to the AC power grid, wherein the first-stage converter comprises an N-level alternating current-direct current (AC-DC) converter, and the N-level AC-DC converter comprises a plurality of switch bridge arms, wherein both an upper bridge arm and a lower bridge arm of each of the plurality of switch bridge arms of the N-level AC-DC converter include a plurality of semiconductor devices connected in series, and a rated withstand voltage Vsemi of each of the semiconductor devices is greater than or equal to (Vbus ∗ δ)/((N-1) ∗ Nseries ∗ λ); and a second-stage converter having a first terminal electrically connected to the bus and a second terminal electrically connected to the load, and the second-stage converter being configured to convert the bus voltage into an output voltage to supply energy to the load. The technical solution of the present invention can reduce size and cost of the conversion device.
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公开(公告)号：EP3916980A1
公开(公告)日：2021-12-01
申请号：EP21170736.9
申请日：2021-04-27
发明人： LIU, Teng , YING, Jianping , QIAO, Lifeng , WANG, Xin , XIAO, Hongwei
摘要： A conversion device includes: an inductor (Lf) electrically connected to a AC power grid; a first-stage converter (302) configured to output a bus voltage based on the AC power grid; a second-stage converter (303) configured to convert the bus voltage into an output voltage to the load; and a filtering network, wherein a first resistance-capacitance circuit is disposed between the first and third terminals of the filtering network, a second resistance-capacitance circuit is disposed between the second and third terminals of the filtering network, the first terminal of the filtering network is electrically connected to the AC power grid, the second terminal of the filtering network is electrically connected to the bus or the second terminal of the second-stage converter, and the third terminal of the filtering network is grounded through a first capacitor.
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公开(公告)号：EP3244526A1
公开(公告)日：2017-11-15
申请号：EP17168352.7
申请日：2017-04-27
发明人： SHEN, Dingkun , ZHENG, Jianfei , XU, Wei , YING, Jianping , WEI, Lan , HU, Zhiming
CPC分类号： H02M1/083 , H02M1/14 , H02M7/487 , H02M7/49 , H02M2001/0025 , H02M2007/4835
摘要： A hybrid topology power converter (1) includes a three-level circuit module (2) and a cascaded H-bridge circuit module (3). A control method includes the following steps. Firstly, a zero sequence component (S) is injected into a total modulation wave (P), thereby generating a compensated total modulation wave (P1). Then, a first voltage signal (Vsg) is generated according to the compensated total modulation wave (P1). An H-bridge modulation wave (P2) is generated according to the compensated total modulation wave (P1) and the first voltage signal (Vsg). A three-level driving signal (Vg1) is generated according to the first voltage signal (Vsg), and an H-bridge driving signal (Vg2) is generated according to the H-bridge modulation wave (P2). A duty cycle of at least one switch element of the three-level circuit module (2) is adjusted according to the three-level driving signal (Vg1). A duty cycle of at least one switch elements of the cascaded H-bridge circuit module (3) is adjusted according to the H-bridge driving signal (Vg2).
摘要翻译： 混合拓扑功率变换器（1）包括三电平电路模块（2）和级联H桥电路模块（3）。 控制方法包括以下步骤。 首先，将零序分量（S）注入到总调制波（P）中，由此生成补偿的总调制波（P1）。 然后，根据补偿的总调制波（P1）产生第一电压信号（Vsg）。 根据补偿后的总调制波（P1）和第一电压信号（Vsg）产生H桥调制波（P2）。 根据第一电压信号（Vsg）产生三电平驱动信号（Vg1），并且根据H桥调制波（P2）产生H桥驱动信号（Vg2）。 根据三电平驱动信号（Vg1）调节三电平电路模块（2）的至少一个开关元件的占空比。 根据H桥驱动信号（Vg2）调节级联H桥电路模块（3）的至少一个开关元件的占空比。
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公开(公告)号：EP4207574A1
公开(公告)日：2023-07-05
申请号：EP22217360.1
申请日：2022-12-30
发明人： QIAO, Lifeng , LOU, Dehai , LIU, Teng , YING, Jianping , DAI, Zhiqiang
摘要： A power converter includes a PCB (1) having opposing first and second sides (11, 12), and a plurality of first commutation units and first capacitor unit disposed on the PCB. Each first commutation unit includes first and second discrete component (Q1, Q2). The second end of the first discrete component (Q1) is electrically coupled to the first end of the second discrete component (Q2), and the first capacitor unit (Ca) is electrically coupled to the first ends of the first discrete components (Q1) and the second ends of the second discrete components (Q2) in the plurality of first commutation units, respectively. The first and second discrete components (Q1, Q2) in the plurality of first commutation units are arranged in a row. The first and second discrete components (Q1, Q2) in each first commutation unit form a commutation loop together with the first capacitor unit (Ca).
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公开(公告)号：EP3916975A2
公开(公告)日：2021-12-01
申请号：EP21171009.0
申请日：2021-04-28
发明人： LIU, Teng , YING, Jianping , QIAO, Lifeng , WANG, Xin , XIAO, Hongwei
IPC分类号： H02M1/00 , H02M1/088 , H02M3/00 , H02M3/335 , H02M5/458 , H02M7/08 , H02M7/23 , H02M7/48 , H02M7/487 , H02M7/493
摘要： Embodiments of the present invention provide a conversion device connected between an alternating current (AC) power grid and a load, wherein the conversion device comprises: an inductor electrically connected to the AC power grid; a first-stage converter having a first terminal electrically connected to the inductor and a second terminal electrically connected to a bus, and the first-stage converter being configured to output a bus voltage according to the AC power grid, wherein the first-stage converter comprises an N-level alternating current-direct current (AC-DC) converter, and the N-level AC-DC converter comprises a plurality of switch bridge arms, wherein both an upper bridge arm and a lower bridge arm of each of the plurality of switch bridge arms of the N-level AC-DC converter include a plurality of semiconductor devices connected in series, and a rated withstand voltage Vsemi of each of the semiconductor devices is greater than or equal to (Vbus ∗ δ)/((N-1) ∗ Nseries ∗ λ); and a second-stage converter having a first terminal electrically connected to the bus and a second terminal electrically connected to the load, and the second-stage converter being configured to convert the bus voltage into an output voltage to supply energy to the load. The technical solution of the present invention can reduce size and cost of the conversion device.
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