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1.发明公开
公开(公告)号：EP2953258A2
公开(公告)日：2015-12-09
申请号：EP15170742.9
申请日：2015-06-04
发明人： DING, Xibing , FENG, Weiyi , ZHANG, Weiqiang , WU, Hongyang
IPC分类号： H02M7/487
CPC分类号： H02M7/537 , H02M1/08 , H02M1/32 , H02M7/487 , H02M2001/0006 , H03K17/0828 , H03K2217/0027
摘要： The present application discloses a TNPC inverter device, comprising: a TNPC inverter module and a short circuit detecting module. The TNPC module at least comprises an inverting bridge arm and a bi-directional switching bridge arm. The inverting bridge arm comprises at least two switches connected in series; the bi-directional switching bridge arm comprises at least two switches. The short circuit detecting module mainly consists of two switch detecting unit corresponding to the two switches in the inverting bridge arm respectively. Increasing the voltage drop of the switches in the inverting bridge when a short circuit occurs in the TNPC module by some way, then it could realize the short circuit detecting module is able to detect all the paths of the short circuit in the TNPC module to simplify the peripheral circuit of the TNPC module in the TNPC inverter device.
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2.发明公开
公开(公告)号：EP4089898A1
公开(公告)日：2022-11-16
申请号：EP22171116.1
申请日：2022-05-02
发明人： LIU, Hong , ZHANG, Wen , WANG, Dan , LU, Cheng , WU, Hongyang
摘要： A method (300) for controlling a power module includes: configuring (S31) N cells (10) in cascade connection, where N is a positive integer equal to or greater than 2, each cell (10) comprising a bidirectional switching unit (11) and a non-controlled rectifier bridge (12), the bidirectional switching unit (11) being connected to central points (N1, N2) of two bridge arms (121, 122) of the non-controlled rectifier bridge (12); and controlling (S32) each cell (10) to operate in one of three operating modes of a modulation mode, a bypass mode and a non-controlled rectifying mode, wherein in the N cells(10), m1 cells operate in the bypass mode, where 0≤m1≤M1, m2 cells operate in the non-controlled rectifying mode, where 0≤m2≤M2, m3 cells operate in the modulation mode and can realize power factor correction, where 0
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公开(公告)号：EP3726695A1
公开(公告)日：2020-10-21
申请号：EP20170235.4
申请日：2020-04-17
发明人： WU, Hongyang , ZHU, Jian , SUN, Liping , YAN, Chao , LI, Qianfeng
摘要： The present disclosure provides a centralized charging cabinet, including: a charging cabinet, provided with an isolation area and a charging area therein; an isolation transformer, provided in the isolation area; and at least one charging unit, provided in the charging area, where each of the charging unit is electrically connected to a secondary winding of the isolation transformer through a plurality of first connection structures, and the plurality of first connection structures are located at a back region of the charging area. In the centralized charging cabinet, the isolation transformer is provided in the isolation area inside the charging cabinet, the charging unit is provided in the charging area inside the charging cabinet, which realizes a centralized layout of the isolation transformer and the charging unit and improves the space utilization. Disposing the charging unit in the charging cabinet can reduce a design requirement of a casing of the charging unit. In addition, dividing the charging area into the back region and the front region and disposing a power line connecting the isolation transformer and the charging unit at the back region that is not easily accessible, thereby achieving high-voltage area isolation and improving safety of the centralized charging cabinet.
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公开(公告)号：EP4142085A1
公开(公告)日：2023-03-01
申请号：EP22190986.4
申请日：2022-08-18
发明人： LIU, Hong , ZHANG, Wen , HU, Wenfei , LU, Cheng , WU, Hongyang
摘要： The application provides a dispersed carrier phase-shifting method and system. The method includes connecting at least two power modules to form a modular system; each power module including a control module for sampling at least twice a common state variate, signs of slopes of the common state variate at a first and second sampling time are opposite, and a reference time of the first sampling time for each control module is the same; and regulating a carrier frequency of the power module according to a relative size between a sampled values at the first and second sampling time. According to embodiments herein, carrier phase-shifting of modular system may be implemented without communication between respective modules. Under closed-loop control, optimal carrier phase-shifting can be automatically achieved under various duty ratios, thereby having good stability.
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5.发明公开
公开(公告)号：EP4089899A1
公开(公告)日：2022-11-16
申请号：EP22171119.5
申请日：2022-05-02
发明人： LIU, Hong , KONG, Jie , ZHANG, Wen , SONG, Baihui , LU, Cheng , WU, Hongyang
摘要： A power module (100) includes N inverter units (10) outputting N AC voltages and being coupled to N high-frequency AC terminals (20), wherein the N high-frequency AC terminals (20) are cascaded and connected to a post-stage rectifier circuit (30). A phase-shift control method for the power module includes: setting (S31) at least two phase-shift sequences, wherein phase sequence numbers of the N AC voltages of the N inverter units are different in the at least two phase-shift sequences; in one switching period, controlling (S32) the N AC voltages of the N inverter units to shift a first angle according to a first phase-shift sequence of the at least two phase-shift sequences; and in another switching period, controlling (S33) the N AC voltages of the N inverter units to shift the first angle according to a second phase-shift sequence of the at least two phase-shift sequences.
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6.发明公开
公开(公告)号：EP2953258A3
公开(公告)日：2016-01-27
申请号：EP15170742.9
申请日：2015-06-04
发明人： DING, Xibing , FENG, Weiyi , ZHANG, Weiqiang , WU, Hongyang
CPC分类号： H02M7/537 , H02M1/08 , H02M1/32 , H02M7/487 , H02M2001/0006 , H03K17/0828 , H03K2217/0027
摘要： The present application discloses a TNPC inverter device, comprising: a TNPC inverter module and a short circuit detecting module. The TNPC module at least comprises an inverting bridge arm and a bi-directional switching bridge arm. The inverting bridge arm comprises at least two switches connected in series; the bi-directional switching bridge arm comprises at least two switches. The short circuit detecting module mainly consists of two switch detecting unit corresponding to the two switches in the inverting bridge arm respectively. Increasing the voltage drop of the switches in the inverting bridge when a short circuit occurs in the TNPC module by some way, then it could realize the short circuit detecting module is able to detect all the paths of the short circuit in the TNPC module to simplify the peripheral circuit of the TNPC module in the TNPC inverter device.
摘要翻译： 本申请盘松TNPC逆变器装置，包括：逆变器TNPC模块和短路检测模块。 在反相电桥臂和一个双向开关桥差的至少包括所述TNPC模块。 反相电桥臂包括串联连接的至少两个开关; 双向开关桥臂包含至少两个开关。 短路检测模块两个切换检测单元对应于桥分别反转臂的两个开关的主要besteht。 通过某种方式在反相电桥增加了开关的电压降当短路的所述TNPC模块中发生，则它可以实现短路检测模块能够检测在TNPC模块短路的所有路径来简化 所述TNPC的外围电路在TNPC逆变器装置的模块。
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公开(公告)号：EP4195480A1
公开(公告)日：2023-06-14
申请号：EP22211402.7
申请日：2022-12-05
发明人： LIU, Hong , SONG, Baihui , HU, Wenfei , LU, Cheng , WU, Hongyang
摘要： The application discloses a resonant converter and a method for controlling the same. The resonant converter includes: a resonant tank, a first circuit electrically connected to a first end of the resonant tank, and a second circuit electrically connected to a second end of the resonant tank; the first circuit including at least one primary switch, the second circuit including at least one controllable switch, and controlling the at least one controllable switch according to a secondary initial switching frequency, such that the second circuit outputs power, adjusting a secondary switching frequency of the at least one controllable switch according to the secondary initial switching frequency and a signal reflecting the power of the second circuit, such that the secondary switching frequency of the second circuit follows a primary switching frequency of the first circuit.
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公开(公告)号：EP4191851A1
公开(公告)日：2023-06-07
申请号：EP22208789.2
申请日：2022-11-22
发明人： LIU, Hong , ZHANG, Wen , HU, Wenfei , LU, Cheng , WU, Hongyang , SONG, Baihui
摘要： The application provides a cascade system distributed control method and device. The method including: taking an output of a closed-loop control for regulating an AC current of the power module as a reference value of a bridge arm voltage; according to the reference value of the bridge arm voltage to obtain an amplitude of the bridge arm voltage, taking the amplitude of the bridge arm voltage as a feedback signal, and after closed-loop control and regulation together with the AC current of the power module, adjusting the reference value of the bridge arm voltage; and controlling the bridge arm voltage according to the reference value of the bridge arm voltage, wherein in at least one working mode of the cascade system, a change of parameters reflecting an active current has a monotonic relation with a change of the amplitude of the bridge arm voltage.
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公开(公告)号：EP4002663A1
公开(公告)日：2022-05-25
申请号：EP21210565.4
申请日：2021-11-25
发明人： SUN, Liping , WU, Hongyang , NI, Jianjun
摘要： A design method of a transformer repeats following steps until a preset condition is met: calculating an output voltage of each secondary winding according to a phase shift angle and a number of turns of the each secondary winding; obtaining a difference between output voltages of each secondary winding pair in a secondary winding set; adjusting the phase shift angle of at least one secondary winding in the secondary winding set; and obtaining a final number of turns for the each secondary winding according to a resultant phase shift angle corresponding to when the preset condition is met; where the preset condition is that the difference between the output voltages of any secondary winding pair in the secondary winding set is less than or equal to a preset threshold.
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