公开(公告)号：US06531791B2

公开(公告)日：2003-03-11

申请号：US09773127

申请日：2001-01-31

申请人： Folke Ekelund ,  Leif Hansson ,  Attila Mathe ,  Kjell Rundkvist ,  Gote Johansson

发明人： Folke Ekelund ,  Leif Hansson ,  Attila Mathe ,  Kjell Rundkvist ,  Gote Johansson

IPC分类号： H02J900

CPC分类号： H02J1/10 ,  H02J1/14 ,  Y10T307/391 ,  Y10T307/625 ,  Y10T307/707

摘要： A full float system with Transient Free Multiple Load Disconnection Reconnection (TFMLDR) is disclosed. The system is based on a concept of always connecting loads and dedicated rectifiers together, and then connect such groups (1-n) via power switching devices (C1-Cn) to a pair of busbars. A backup battery is typically connected directly to the busbars via a respective fuse (F114 Fy). The disconnection/reconnection of individual groups to a busbar can then be controlled such that no transients are produced in the system voltage. Such a system is advantageous for reconnection of a load after a disconnection due to a mains power failure. The loads present a substantial input capacitance assisting in stabilizing DC power supply to the load and this load is directly connected to a rectifying unit delivering voltage controlled power during normal mains power operation. After a disconnection of a load from the busbar and the battery by the power switching member, a reconnection will be done in the following order. The rectifier will deliver current controlled power, which then charges the input capacitance of the load up to a voltage level close to the voltage of the battery. Then a reconnection to the battery with limited inrush current will be achieved thereby obtaining a practically transient free reconnection to the battery.

摘要翻译： 公开了一种具有瞬态自由多负载断开重连接（TFMLDR）的全浮体系统。 该系统基于将负载和专用整流器总是连接在一起的概念，然后通过功率开关器件（C1-Cn）将这些组（1-n）连接到一对母线。 备用电池通常通过相应的保险丝（F114Fy）直接连接到母线。 然后可以控制单个组到母线的断开/重新连接，使得在系统电压中不产生瞬变。 这种系统有利于由于电源电源故障而在断开连接之后重新连接负载。 负载提供了大量输入电容，有助于稳定对负载的直流电源，并且该负载直接连接到在正常主电源运行期间提供压控功率的整流单元。 在通过电源切换部件断开母线和电池的负载之后，重新连接将按照以下顺序进行。 整流器将提供电流控制功率，然后将负载的输入电容充电至接近电池电压的电压电平。 然后，将实现具有有限涌入电流的电池的重新连接，从而获得与电池的实际上暂时的无偿重新连接。

公开(公告)号：US5687069A

公开(公告)日：1997-11-11

申请号：US646315

申请日：1996-05-13

申请人： Kjell Rundkvist ,  Eric Groth

发明人： Kjell Rundkvist ,  Eric Groth

IPC分类号： H02H7/125 ,  H02H9/00 ,  H02M1/00 ,  H02M1/36 ,  H02M7/06

CPC分类号： H02M1/36 ,  H02H9/001 ,  H02M7/062

摘要： In a rectifier bridge, a method and system for starting a DC-driven device without the occurrence of a current surge. The input of the rectifier bridge is connected to a three-phase source and a storage capacitor is connected across the output of the rectifier bridge. At least two of the three input terminals of the rectifier bridge are each connected in series to a respective AC capacitor. Each of the capacitors is connected in parallel with a respective controlled switch which functions to short-circuit the capcitors subsequent to the storage capacitor being charged.

摘要翻译： PCT No.PCT / SE95 / 01101 Sec。 371日期：1996年5月13日 102（e）日期1996年5月13日PCT提交1995年9月27日PCT公布。 公开号WO96 / 10862 日期1996年4月11日在整流桥中，用于启动直流驱动装置而不发生电流浪涌的方法和系统。 整流桥的输入端连接到三相电源，并在整流桥的输出端连接存储电容。 整流桥三个输入端中的至少两个分别与相应的交流电容器串联连接。 每个电容器与相应的受控开关并联连接，这些开关用于使存储电容器充电之后的电容器短路。

公开(公告)号：US06680855B1

公开(公告)日：2004-01-20

申请号：US10070841

申请日：2002-07-29

申请人： Kjell Rundkvist ,  Kjell Lövqvist

发明人： Kjell Rundkvist ,  Kjell Lövqvist

IPC分类号： H02M717

CPC分类号： H02J1/102 ,  H02M7/17

摘要： To expand the power output capacity of a power plant comprising a first and a second rectifier connected in parallel to a varying load, the output voltage of the first rectifier being essentially constant within its load current operating range, said second rectifier is controlled to supply, at said first rectifier output voltage (U1), a constant load current (0.8×I3max) that is lower than its maximum current (I3max) to shift the operating range of said first rectifier correspondingly to higher current values. Said second rectifier is controlled to supply, at a predetermined lower output (U3″) voltage, load currents between said constant load current (0.8×I3max) and said maximum current (I3max) in response to maximum current (I1max) from said first rectifier. In response to load currents that are lower than said constant load current (0.8×I3max), the output voltage is limited to a predetermined higher voltage (U3′).

摘要翻译： 为了扩大包括与变化负载并联连接的第一和第二整流器的发电厂的功率输出容量，第一整流器的输出电压在其负载电流工作范围内基本上是恒定的，所述第二整流器被控制以供应， 在所述第一整流器输出电压（U1）处，将恒定负载电流（0.8xI3max）低于其最大电流（I3max），以将所述第一整流器的工作范围相应地改变为较高的电流值。 所述第二整流器被控制为在预定的较低输出（U3“）电压下，响应于来自所述第一整流器的最大电流（I1max），在所述恒定负载电流（0.8xI3max）和所述最大电流（I3max）之间提供负载电流 。 响应于低于所述恒定负载电流（0.8xI3max）的负载电流，输出电压被限制在预定的较高电压（U3'）。