ON-LOAD VOLTAGE REGULATION TAP SWITCH FOR TRANSFORMER AND SWITCH CONTROL METHOD

    公开(公告)号:EP3226267A4

    公开(公告)日:2018-06-27

    申请号:EP15863696

    申请日:2015-11-18

    申请人: WANG HAI

    发明人: WANG HAI

    IPC分类号: H01F29/04 H02M5/10 H02P13/06

    摘要: The present invention relates to an on-load voltage regulation tap switch for a transformer, comprising a main switch group, a switch contact protection branch and a switch control circuit, wherein the main switch group comprises a plurality of switch contacts, one end of the switch group is connected to a corresponding transformer winding tap, and the other end of the switch group is connected in parallel and is then connected to a power source; the switch contact protection branch is a series circuit formed by a plurality of groups of diodes and auxiliary switch contacts, and is respectively connected to both ends of a corresponding main switch in parallel; and the switch control circuit is composed of a power source, a single chip microcomputer and a peripheral circuit, and controls all of the main switches and auxiliary switches to act in a certain time sequence, so as to complete the switching of the transformer windings. Compared with the existing on-load voltage regulation tap switch, the on-load voltage regulation tap switch for a transformer of the present invention has the advantages of a fast tapping speed, no inrush current during tapping and a continuous current, and has a simple operation, high reliability, small volume, light weight, low costs, etc.

    POWER CONVERTER
    3.
    发明公开
    POWER CONVERTER 审中-公开

    公开(公告)号:EP3121949A4

    公开(公告)日:2017-11-15

    申请号:EP15765461

    申请日:2015-03-17

    申请人: TOKYO INST TECH

    摘要: This power converter is provided with: three clusters (CLu, CLv, CLw) in which unit cells are cascade-connected; and power supplies of the same kind which are respectively connected to one end of each of the three clusters. Terminals of the three clusters at the side not connected to the power supplies are respectively connected to other ends of the power supplies connected to the other clusters to form a delta-connection configuration. Three connections of the delta-connection configuration are respectively connected to each of the U, V, and W phases of a three-phase alternating current, and power conversion between the power supplies and the three-phase AC is enabled. If DC power supplies (Vdcu, Vdcv, Vdcw) are employed as the power supplies, power conversion between the DC power supplies and the three-phase AC power supplies can be performed. If in-phase single-phase AC power supplies are employed as the power supplies, power conversion between either the single-phase AC power supplies and the three-phase AC power supplies, or the three-phase AC power supplies can be performed.

    Modular high voltage supply system
    5.
    发明公开
    Modular high voltage supply system 有权
    Modulare Hochspannungsversorgungsanlage

    公开(公告)号:EP3026758A1

    公开(公告)日:2016-06-01

    申请号:EP14003965.2

    申请日:2014-11-25

    申请人: ABB Technology AG

    IPC分类号: H01R9/26 H02M7/00 H05K7/02

    摘要: The invention is related to a modular high voltage supply system (10), comprising a mobile adapter transformer (12, 142) with a high-voltage output side and a low-voltage input side, wherein electrical connecting input-terminals (16) for the input-side are foreseen at the outer surface of the mobile adapter transformer (12, 142), further comprising a mobile container (24, 102, 132) with a low voltage supply system mounted stationary therein which comprises a high current busbar (104) and at least one electrical frequency converter (112, 114, 116) connected thereto, wherein electrical connecting output-terminals (26, 106) for the high current busbar (104) are foreseen at an accessible (108) edge of the mobile container (24, 102, 132) and further comprising a modular interim busbar system (28) for the temporary electrical connection of input- (16) and output- (26, 106) terminals. The modular interim busbar system (28) comprises at least one interim busbar with at least one elongated busbar basic module (32) mounted on a frame structure (30) and with respective resilient electrical connection means (34, 38, 50, 70) on both ends of the busbar basic module (32) which form an electrical connection to the input- (16) respectively output- (26, 106) terminals and which are arranged in a way, that a transmission of vibrations (22) from the mobile adapter transformer (12, 142) to the mobile container (24, 102, 132) is suppressed.

    摘要翻译: 本发明涉及一种模块化高压电源系统(10),其包括具有高压输出侧和低电压输入侧的移动适配器变压器(12,142),其中电连接输入端子(16)用于 在移动适配器变压器(12,142)的外表面处预计输入侧,还包括具有安装在其中的低电压供应系统的移动容器(24,102,132),其包括高电流母线(104) )和连接到其上的至少一个电气变频器(112,114,116),其中用于高电流母线(104)的电连接输出端子(26,106)在移动容器的可访问(108)边缘处被预见 (24,102,132),并且还包括用于输入(16)和输出(26,106)端子的临时电连接的模块化中间母线系统(28)。 模块化临时母线系统(28)包括至少一个中间母线,其具有安装在框架结构(30)上的至少一个细长母线基本模块(32),并且具有相应的弹性电连接装置(34,38,50,70) 母线基本模块(32)的两端形成与输入(16)分别输出(26,106)端子的电连接,并且以一定方式布置,来自移动体的振动(22)的传输 适配器变压器(12,142)被移动到移动容器(24,102,132)。

    Anordnung zum Zünden von Dünnstäben aus elektrisch leitfähigem Material, insbesondere von Siliziumdünnstäben
    7.
    发明公开
    Anordnung zum Zünden von Dünnstäben aus elektrisch leitfähigem Material, insbesondere von Siliziumdünnstäben 审中-公开
    安排用于点燃导电材料的细棒,特别是硅细棒

    公开(公告)号:EP2765698A1

    公开(公告)日:2014-08-13

    申请号:EP13154201.1

    申请日:2013-02-06

    发明人: Heid, Günter

    IPC分类号: H02M5/10

    摘要: Die Erfindung betrifft eine Schaltungsanordnung (1) zum Zünden von Dünnstäben (3, 4, 5) aus elektrisch leitfähigem Material, insbesondere von Siliziumdünnstäben (3, 4, 5). Auch betrifft die Erfindung die Verwendung eines Dreiphasenwechselstromsystems (Drehstromsystem, 11) zum Speisen von Dünnstäben (3, 4, 5) aus elektrisch leitfähigem Material, insbesondere von Siliziumdünnstäben (3, 4, 5), mit elektrischer Energie.
    Die Erfindung sieht so ein Dreiphasenwechselstromsystem (Drehstromsystem, 11) bzw. einen Drehstromtransformator (2) mit einem sekundärseitigen dreiphasigen Wicklungssystem (14) vor, bei dem die drei Phasen des Drehstromsystems (11) bzw. das sekundärseitige dreiphasige Wicklungssystems (14) derart verschaltet bzw. gesteuert sind, dass sich Spannungen (Spannungsvektoren, 43, 44, 45) der drei Phasen aufheben (dreiphasiges geschlossenes Vektordreieck, 46).

    摘要翻译: 所述装置(1)具有设置有初级侧和次级侧(11)的三相变压器(2)。 三相变压器的次级侧绕组包括一个次级绕组系统(15),和相互连接彼此的搜索没有次级侧绕组的交流电压的总和包括次级电压矢量(43-45),并取消彼此 出三相闭合的矢量三角系统(46),其中所述三相变压器具有三角形绕组/在初级侧和星形连接绕组/在初级侧连接。

    HIGH-FREQUENCY POWER DEVICE, POWER TRANSMISSION DEVICE, AND POWER TRANSFER SYSTEM
    8.
    发明公开
    HIGH-FREQUENCY POWER DEVICE, POWER TRANSMISSION DEVICE, AND POWER TRANSFER SYSTEM 有权
    高频用功率器件,功率发送装置和动力传输系统

    公开(公告)号:EP2727216A1

    公开(公告)日:2014-05-07

    申请号:EP11859016.5

    申请日:2011-06-28

    IPC分类号: H02J17/00

    摘要: A power transfer system (301) includes a power transmission device (101) and a power reception device (201) which are capacitively coupled to allow electrical conduction therethrough in the manner of alternating current. The power transmission device (101) includes an active electrode (3), a passive electrode (2), a step-up transformer (11), and a high-frequency voltage generating circuit (10). The power reception device (201) includes an active electrode (6), a passive electrode (7), and a load circuit (5). A divider for voltage division based on load capacitances (C1 and C2) is provided between the active electrode (3) and the passive electrode (2). The active electrode (3) and the passive electrode (2) have respective equivalent capacitances to ground (Ca and Cp) relative to the ground potential. A ground leakage current Ig is minimized by adjusting the values of the respective capacitances in an equivalent circuit so as to satisfy the relationship: C2/C1 = Cp/Ca.

    UNIVERSAL POWER CONVERTER
    9.
    发明公开
    UNIVERSAL POWER CONVERTER 有权
    UNIVERSELLER STRMRICHTER

    公开(公告)号:EP2025051A2

    公开(公告)日:2009-02-18

    申请号:EP07795915.3

    申请日:2007-06-06

    IPC分类号: H02M3/24

    摘要: Methods and systems for transforming electric power between two or more portals. Any or all portals can be DC, single phase AC, or multi-phase AC. Conversion is accomplished by a plurality of bi-directional conducting and blocking semiconductor switches which alternately connect an inductor and parallel capacitor between said portals, such that energy is transferred into the inductor from one or more input portals and/or phases, then the energy is transferred out of the inductor to one or more output portals and/or phases, with said parallel capacitor facilitating "soft" turn-off, and with any excess inductor energy being returned back to the input. Soft turn-on and reverse recovery is also facilitated. Said bi-directional switches allow for two power transfers per inductor/capacitor cycle, thereby maximizing inductor/capacitor utilization as well as providing for optimum converter operation with high input/output voltage ratios. Control means coordinate the switches to accomplish the desired power transfers.

    摘要翻译: 在两个或多个门户之间转换电力的方法和系统。 任何或所有门户都可以是直流,单相交流或多相交流。 转换是通过多个双向导电和阻塞半导体开关实现的,所述双向导电和阻挡半导体开关在所述入口之间交替地连接电感器和并联电容器,使得能量从一个或多个输入端口和/或相转移到电感器中, 从电感器转移到一个或多个输出端口和/或相位,所述并联电容器有助于“软”关断,并且任何多余的电感能量被返回到输入端。 软启动和反向恢复也方便。 所述双向开关允许每个电感/电容器周期进行两次功率传输,从而最大限度地提高电感器/电容器的利用率,并提供具有高输入/输出电压比的最佳转换器运行。 控制装置协调开关以完成所需的电力传输。

    POTENTIALFREIE WECHSELSTROMQUELLE
    10.
    发明公开
    POTENTIALFREIE WECHSELSTROMQUELLE 有权
    无电势变化动力源

    公开(公告)号:EP1389946A2

    公开(公告)日:2004-02-25

    申请号:EP02738099.7

    申请日:2002-05-23

    发明人: GERSING, Eberhard

    IPC分类号: A61B5/00

    CPC分类号: H02M5/10 A61B5/053 G01R27/02

    摘要: When measuring the impedance of the human body, by sending an alternating current through said body, safety specifications require the presence of a potential barrier between the power source, from which power is drawn for the current, and the human being, which can be achieved by means of a transformer. Said invention provides that, such an alternating current power supply has a positive feedback signal, such that the current delivered by said alternating current power supply is constant over greater load ranges Zx. For example, the current, sent through said human body, can be measured and the measured signal can be used for controlling the AC voltage, by means of which the transformer is excited for producing said alternating current.