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公开(公告)号：EP2840697A2
公开(公告)日：2015-02-25
申请号：EP14173712.2
申请日：2014-06-24
发明人： Ganev, Evgeni , Warr, William , Chen, Keming
摘要： A boosting AC-to-DC converter may include a main rectifier, a first and second auxiliary rectifiers, and an autotransformer. The autotransformer may include a plurality of winding assemblies each having a primary terminal connected to an AC power source, a main secondary terminal connected to the main rectifier, a first auxiliary secondary terminal connected to the first auxiliary rectifier, and a second auxiliary secondary terminal connected to the second auxiliary rectifier. Impedance between the primary terminal of each of the winding assemblies and the main rectifier is less than impedance between the primary terminal of each of the winding assemblies and either the first auxiliary rectifier or the second auxiliary rectifier. Impedance between the primary terminal of each of the first winding assemblies and the first auxiliary rectifier is different from impedance between the primary terminal of each of the winding assemblies and the second auxiliary rectifier.
摘要翻译： 升压AC-DC转换器可以包括主整流器，第一和第二辅助整流器以及自耦变压器。 自耦变压器可以包括多个绕组组件，每个绕组组件都具有连接到AC电源的主端子，连接到主整流器的主副端子，连接到第一辅助整流器的第一辅助次级端子以及连接到第二辅助次级端子的第二辅助次级端子， 到第二辅助整流器。 每个绕组组件的主要端子和主整流器之间的阻抗小于每个绕组组件的主要端子与第一辅助整流器或第二辅助整流器之间的阻抗。 每个第一绕组组件的初级端子与第一辅助整流器之间的阻抗不同于每个绕组组件的初级端子与第二辅助整流器之间的阻抗。
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公开(公告)号：EP2828967A1
公开(公告)日：2015-01-28
申请号：EP13719593.9
申请日：2013-03-20
CPC分类号： H02M7/797 , H02M7/066 , H02M7/483 , H02M2007/4835
摘要： A power electronic converter (30), for connecting AC and DC networks (46,44) and transferring power therebetween, comprises: first and second DC terminals (32,34) defining a DC link for connection to a DC network (44); wherein, in use, the DC link has a reversible DC link voltage applied thereacross; at least one converter limb (36) extending between the first and second DC terminals (32,34) and having first and second limb portions (38,40) separated by an AC terminal (42) for connection to an AC network (46), each limb portion (38,40) including at least one rationalised module (52) having first and second sets of series-connected current flow control elements (54) connected in parallel with at least one energy storage device (56), each set of current flow control elements (54) including a primary active switching element to selectively direct current through the energy storage device (56) and a primary passive current check element to limit current flow through the rationalised module (52) to a single direction, the current flow control elements (54) and the or each energy storage device (56) combining to selectively provide a voltage source to synthesise an AC voltage at the AC terminal (42); and a first controller (60) to selectively switch the or each rationalised module (52) in each limb portion (38,40) to control the configuration of the AC voltage at the corresponding AC terminal (42) so as to transfer power from the AC network (46) to the DC network (44) in an AC to DC power transfer mode and to transfer power from the DC network (44) to the AC network (46) in a DC to AC power transfer mode, wherein each limb portion (38,40) includes: one or more secondary passive current check elements (48) to limit current flow through the corresponding limb portion (38,40) to a single direction between the corresponding AC and DC terminals (42,32,34), the or each secondary passive current check element (48) being connected in series with the or each rationalised module (52); or one or more secondary active switching elements that is connected in series with the or each rationalised module (52).
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公开(公告)号：EP2731248A1
公开(公告)日：2014-05-14
申请号：EP12807802.9
申请日：2012-03-13
发明人： KAWAMURA Mao
IPC分类号： H02M7/12
CPC分类号： H02M7/066 , H02M1/42 , H02M1/4208 , H02M1/4233 , H02M7/125 , Y02B70/126
摘要： The number of constituent components is reduced so as to provide a small-size and inexpensive electric-power conversion system. The electric-power conversion system is provided with an inverter circuit (14) connected with the rear stage of an AC power source, a smoothing capacitor (22) connected with the rear stage of the inverter circuit (14) by way of a rectifying device (20), a charging switch (2) that is connected with the front stage of the inverter circuit (14), that inputs an electric quantity based on an output of the AC power source (1) to the inverter circuit (14) when being turned on, and that cuts off an input of the electric quantity to the inverter circuit (14) when being turned off, and an inrush current prevention circuit (7) having an inrush current prevention switch (3) and an inrush current prevention resistor (4) that is connected in series with the rear stage of the inrush current prevention switch (3) ; the electric-power conversion system is characterized in that the inrush current prevention circuit (7) is connected in parallel with the charging switch (2).
摘要翻译： 构成部件的数量减少，从而提供小型且廉价的电力转换系统。 该电力转换系统具备与交流电源的后级连接的逆变器电路（14），通过整流装置与逆变器电路（14）的后级连接的平滑电容器（22） （20）;充电开关（2），其与逆变器电路（14）的前级连接，将电力量基于交流电源（1）的输出输入到逆变器电路 并且在关闭时切断向逆变器电路（14）的电量输入;以及浪涌电流防止电路（7），其具有浪涌电流防止开关（3）和浪涌电流防止电阻器 （4）与浪涌电流防止开关（3）的后级串联连接; 该电力转换系统的特征在于，浪涌电流防止电路（7）与充电开关（2）并联连接。
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44.发明公开THREE-PHASE AC/DC CONVERTING APPARATUS AND AIR HANDLING UNIT USING THREE-PHASE AC/DC CONVERTING APPARATUS 审中-公开DREIPHASEN-AC / DC-WANDLER UND LUFTBEHANDLUNGSEUNGHEIT MIT DEM DREIPHASEN-AC / DC-WANDLER
公开(公告)号：EP2629410A1
公开(公告)日：2013-08-21
申请号：EP10858369.1
申请日：2010-10-13
发明人： TAKATA, Masaki , TAKATA, Shigeo
CPC分类号： H02M7/219 , H02M1/12 , H02M1/4216 , H02M7/066 , H02P27/06 , H02P27/08 , Y02B70/126
摘要： To provide a three-phase AC to DC converter capable of reducing harmonic leakage current and the noise level, and an air-conditioning apparatus using the three-phase AC to DC converter.
A three-phase AC to DC converter includes a three-phase AC power supply, a three-phase rectifier bridge circuit that is connected to the three-phase AC power supply and includes rectifying devices which are connected in a bridge configuration, a three-phase full-bridge circuit that includes two serially-connected switching devices for each of three phases, the two serially-connected switching devices being connected at an output side of the three-phase rectifier bridge circuit, and includes reverse blocking diodes which are connected in parallel to the respective switching devices, a reactor that connects the three-phase full-bridge circuit to the three-phase AC power supply, a smoothing capacitor connected to an output side of the three-phase full-bridge circuit, DC voltage detection means that detects an output voltage, power supply phase detection means that detects a power supply phase of the three-phase AC power supply, and pulse width modulation means that outputs PWM signals which control the switching devices. The pulse width modulation means outputs the PWM signals on the basis of the power supply phase and the output voltage.摘要翻译： 提供能够减少谐波泄漏电流和噪声电平的三相AC-DC转换器，以及使用三相AC-DC转换器的空调装置。 三相AC-DC转换器包括一个三相交流电源，一个连接到三相交流电源的三相整流桥电路，包括以桥式结构连接的整流装置， 该三相全桥电路包括三相串联的两个串联开关器件，两个串联的开关器件连接在三相整流桥电路的输出侧，并且包括反向阻塞二极管，其连接在 并联于各个开关装置，将三相全桥电路连接到三相交流电源的电抗器，连接到三相全桥电路的输出侧的平滑电容器，直流电压检测装置 检测输出电压，检测三相交流电源的电源相位的电源相位检测单元，以及输出PWM信号的脉宽调制单元 ch控制开关器件。 脉宽调制装置根据电源相位和输出电压输出PWM信号。
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公开(公告)号：EP1324481A3
公开(公告)日：2004-11-10
申请号：EP02079436.8
申请日：2002-10-24
申请人： Eni Technology, Inc.
发明人： Lubomirsky, Vadim
CPC分类号： H02M7/064 , H02M7/066 , H02M7/08 , H02M7/10 , H02M2001/009 , Y10T307/305 , Y10T307/582
摘要： A rectifier circuit powers three power conversion modules using a three phase AC input without a neutral connection. First, second and third bridge rectifiers are connected to first, second and third phases of the three phase AC input and produce first, second and third rectified waveforms, respectively. A connection between the first, second, and third bridge rectifiers forms a virtual neutral. Capacitors are connected across the bridge rectifies to filter the rectified waveforms and to create a DC rail voltage. The DC rail voltages feed power conversion modules. Two of the three power conversion modules remain powered at a decreased voltage level when the remaining power conversion module fails. Inductors are connected between the bridge rectifiers and the capacitors to further smooth the DC rail voltages and increase the power factor. Alternately, inductors are connected between the phases of the three phase AC input and the bridge rectifiers.
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公开(公告)号：EP1078378A4
公开(公告)日：2004-04-21
申请号：EP99924153
申请日：1999-05-07
申请人： MINEBEA CO LTD
发明人： JANSEN ARIANM
CPC分类号： H02M7/066
摘要： A power regulator (30) is provided which employs a resonant circuit (32) and permits regulation between a certain maximum value and zero. A series resonant circuit is adjusted to regulate power by adjusting the correspondence between the resonance frequency and the frequency of the voltage source (31) such as an AC source delivering a sine wave or a square wave. Further, the output voltage is regulated to be lower than the AC source (31) when output current is zero. A capacitance (C2) is connected in parallel with the output of the power regulator (30) to form a second resonant circuit with the inductance (L1) of the series resonant circuit (32). A method of power regulation is also contemplated.
摘要翻译： 提供了一种功率调节器，其采用谐振电路，并允许在一定的最大值和零之间进行调节。 调整串联谐振电路以通过调节谐振频率和诸如提供正弦波或方波的AC源的电压源的频率之间的对应关系来调节功率。 此外，当输出电流为零时，输出电压被调节为低于AC电源的电压。 电容与功率调节器的输出并联连接，以形成具有串联谐振电路的电感的第二谐振电路。 还考虑了功率调节的方法。
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47.发明公开Three phase recitifier circuit with virtual neutral 审中-公开Dreiphasen Gleichrichterschaltung mit Virtuellen Nulleiter
公开(公告)号：EP1324481A2
公开(公告)日：2003-07-02
申请号：EP02079436.8
申请日：2002-10-24
申请人： Eni Technology, Inc.
发明人： Lubomirsky, Vadim
IPC分类号： H02M7/06
CPC分类号： H02M7/064 , H02M7/066 , H02M7/08 , H02M7/10 , H02M2001/009 , Y10T307/305 , Y10T307/582
摘要： A rectifier circuit powers three power conversion modules using a three phase AC input without a neutral connection. First, second and third bridge rectifiers are connected to first, second and third phases of the three phase AC input and produce first, second and third rectified waveforms, respectively. A connection between the first, second, and third bridge rectifiers forms a virtual neutral. Capacitors are connected across the bridge rectifies to filter the rectified waveforms and to create a DC rail voltage. The DC rail voltages feed power conversion modules. Two of the three power conversion modules remain powered at a decreased voltage level when the remaining power conversion module fails. Inductors are connected between the bridge rectifiers and the capacitors to further smooth the DC rail voltages and increase the power factor. Alternately, inductors are connected between the phases of the three phase AC input and the bridge rectifiers.
摘要翻译： 整流电路使用三相交流输入为三个电源转换模块供电，无需中性点连接。 首先，第二和第三桥式整流器连接到三相交流输入的第一，第二和第三相，分别产生第一，第二和第三整流波形。 第一，第二和第三桥式整流器之间的连接形成虚拟中性线。 电容器连接在桥上整流，以对整流波形进行滤波，并产生直流导轨电压。 直流轨电压供电电源转换模块。 当剩余电源转换模块发生故障时，三个电源转换模块中的两个将以降低的电压电平保持供电。 电感器连接在桥式整流器和电容器之间，以进一步平滑直流电源电压并增加功率因数。 或者，电感器连接在三相AC输入和桥式整流器的相位之间。
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公开(公告)号：EP2524422B1
公开(公告)日：2018-05-09
申请号：EP11702703.7
申请日：2011-01-04
发明人： LUERKENS, Peter
CPC分类号： H02M7/2173 , H02M3/33592 , H02M7/04 , H02M7/066 , H02M7/217 , H02M2001/0058 , H02M2001/007 , Y02B70/1475 , Y02B70/1491
摘要： The invention relates to an AC/DC converter circuit (100) and a method for converting N≧2 AC supply voltages (U1, U2, U3) into DC voltage. This is achieved by feeding the AC supply voltages to first terminals (a1, a2, a3) of full bridge converters (11, 12, 13), wherein the second terminals (b1, b2, b3) of these rectifiers are coupled to each other. The outputs (d11, d1′, d2, d2′, d3, d3′) of the rectifiers are fed to the DC terminals of intermediate converters (21, 22, 23). The AC terminals (e1, e1′, e2, e2′, e3, e3′) of the intermediate converters are connected to the primary sides of transformers (31, 32, 33), wherein the secondary sides of these transformers are provided to further rectifiers (41, 42, 43). The circuit design allows using MosFETs of limited voltage capability for processing 380 V three-phase AC current, thus achieving a high efficiency.
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50.发明公开
公开(公告)号：EP2629410A4
公开(公告)日：2018-02-21
申请号：EP10858369
申请日：2010-10-13
发明人： TAKATA MASAKI , TAKATA SHIGEO
CPC分类号： H02M7/219 , H02M1/12 , H02M1/4216 , H02M7/066 , H02P27/06 , H02P27/08 , Y02B70/126
摘要： To provide a three-phase AC to DC converter capable of reducing harmonic leakage current and the noise level, and an air-conditioning apparatus using the three-phase AC to DC converter. A three-phase AC to DC converter includes a three-phase AC power supply, a three-phase rectifier bridge circuit that is connected to the three-phase AC power supply and includes rectifying devices which are connected in a bridge configuration, a three-phase full-bridge circuit that includes two serially-connected switching devices for each of three phases, the two serially-connected switching devices being connected at an output side of the three-phase rectifier bridge circuit, and includes reverse blocking diodes which are connected in parallel to the respective switching devices, a reactor that connects the three-phase full-bridge circuit to the three-phase AC power supply, a smoothing capacitor connected to an output side of the three-phase full-bridge circuit, DC voltage detection means that detects an output voltage, power supply phase detection means that detects a power supply phase of the three-phase AC power supply, and pulse width modulation means that outputs PWM signals which control the switching devices. The pulse width modulation means outputs the PWM signals on the basis of the power supply phase and the output voltage.
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