-
公开(公告)号：US20090171509A1
公开(公告)日：2009-07-02
申请号：US11794317
申请日：2004-12-27
申请人： Sture Lindahl , Juhani Mantere , Lars Gertmar , Hans Christian Christensen , Erik Kolby-Nielsen , Leif-Erik Wraae
发明人： Sture Lindahl , Juhani Mantere , Lars Gertmar , Hans Christian Christensen , Erik Kolby-Nielsen , Leif-Erik Wraae
CPC分类号： H02H7/067 , H02J3/386 , Y02E10/763 , Y10T307/696
摘要： A farm including a plurality of electric power generation units connected to a grid point of a power network. The power generation units are organized in a plurality of upstream branches. Each upstream branch is separable from an adjacent downstream branch by an interrupter.
摘要翻译： 农场，包括连接到电力网络的网格点的多个发电单元。 发电单元组织在多个上游分支中。 每个上游分支通过断续器与相邻的下游分支分开。
-
公开(公告)号：US07447568B2
公开(公告)日：2008-11-04
申请号：US10584211
申请日：2004-12-22
申请人： Hans Christian Christensen , Lars Gertmar , Sture Lindahl , Juhani Mantere , Erik Koldby Nielsen , Leif-Erik Wraae
发明人： Hans Christian Christensen , Lars Gertmar , Sture Lindahl , Juhani Mantere , Erik Koldby Nielsen , Leif-Erik Wraae
IPC分类号： G05D11/00
摘要： A device for controlling at a fault condition. An apparatus is connected by a connection line to a grid point of a transmission net in an electric power network. A voltage raising apparatus includes a first branch connected to the grid point including a switching element and a second branch including a current resisting means. The voltage raising apparatus includes a computer for signal processing of a sensed fault condition on the network and for affecting the operation of the switching element such that on a fault condition at least part of the current is diverted through the voltage raising apparatus and for evaluation of further actions.
摘要翻译： 用于在故障状态下进行控制的装置。 设备通过连接线连接到电力网络中的传输网的网格点。 升压装置包括连接到包括开关元件的栅极点的第一支路和包括电流阻抗装置的第二支路。 升压装置包括用于对网络上感测到的故障状况进行信号处理并影响开关元件的操作的计算机，使得在故障状态下，电流的至少一部分通过升压装置转移并用于评估 进一步的行动。
-
公开(公告)号：US20070217105A1
公开(公告)日：2007-09-20
申请号：US10584211
申请日：2004-12-22
申请人： Hans Christensen , Lars Gertmar , Sture Lindahl , Juhani Mantere , Erik Koldby Nielsen , Leif-Erik Wraae
发明人： Hans Christensen , Lars Gertmar , Sture Lindahl , Juhani Mantere , Erik Koldby Nielsen , Leif-Erik Wraae
摘要： A device for controlling at a fault condition. An apparatus is connected by a connection line to a grid point of a transmission net in an electric power network. A voltage raising apparatus includes a first branch connected to the grid point including a switching element and a second branch including a current resisting means. The voltage raising apparatus includes a computer for signal processing of a sensed fault condition on the network and for affecting the operation of the switching element such that on a fault condition at least part of the current is diverted through the voltage raising apparatus and for evaluation of further actions.
摘要翻译： 用于在故障状态下进行控制的装置。 设备通过连接线连接到电力网络中的传输网的网格点。 升压装置包括连接到包括开关元件的栅极点的第一支路和包括电流阻抗装置的第二支路。 升压装置包括用于对网络上感测到的故障状况进行信号处理并影响开关元件的操作的计算机，使得在故障状态下，电流的至少一部分通过升压装置转移并用于评估 进一步的行动。
-
公开(公告)号：US07759910B2
公开(公告)日：2010-07-20
申请号：US10573383
申请日：2004-09-13
申请人： Sture Lindahl , Kenneth Johansson , Udo Fromm , Stefan Johansson
发明人： Sture Lindahl , Kenneth Johansson , Udo Fromm , Stefan Johansson
IPC分类号： G05F1/70
摘要： A high voltage AC transmission cable system for transmitting power between two points, each connected to one or more power networks, and a method to operate the system. At least one transformer is arranged at each end of the AC transmission cable, wherein at least one of the transformers is arranged to operate the transformer at a voltage whereby losses due to reactive power transport and dielectric losses are minimized. The AC cable is run at a variable voltage regulated such that the voltage is a function of the load for the transmission cable. This operating voltage is not necessarily the same as the nominal voltages in the connection points. A control and communication system and a graphical user interface for carrying out the method are also provided.
摘要翻译： 用于在两个点之间传输功率的高压交流传输电缆系统，每个连接到一个或多个电力网络，以及操作该系统的方法。 至少一个变压器布置在交流传输电缆的每个端部处，其中至少一个变压器布置成以一定的电压来操作变压器，由此使由无功功率传输和介电损耗引起的损耗最小化。 AC电缆以可变电压调节运行，使得电压是传输电缆负载的函数。 该工作电压不一定与连接点中的标称电压相同。 还提供了用于执行该方法的控制和通信系统和图形用户界面。
-
公开(公告)号：US20070114978A1
公开(公告)日：2007-05-24
申请号：US10573383
申请日：2004-09-13
申请人： Sture Lindahl , Kenneth Johansson , Udo Fromm , Stefan Johansson
发明人： Sture Lindahl , Kenneth Johansson , Udo Fromm , Stefan Johansson
IPC分类号： G05F1/70
摘要： A high voltage AC transmission cable system for transmitting power between two points, each connected to one or more power networks, and a method to operate the system. At least one transformer is arranged at each end of the AC transmission cable, wherein at least one of the transformers is arranged to operate the transformer at a voltage whereby losses due to reactive power transport and dielectric losses are minimized. The AC cable is run at a variable voltage regulated such that the voltage is a function of the load for the transmission cable. This operating voltage is not necessarily the same as the nominal voltages in the connection points. A control and communication system and a graphical user interface for carrying out the method are also provided.
摘要翻译： 用于在两个点之间传输功率的高压交流传输电缆系统，每个连接到一个或多个电力网络，以及操作该系统的方法。 至少一个变压器布置在交流传输电缆的每个端部处，其中至少一个变压器布置成以一定的电压来操作变压器，由此使由无功功率传输和介电损耗引起的损耗最小化。 AC电缆以可变电压调节运行，使得电压是传输电缆负载的函数。 该工作电压不一定与连接点中的标称电压相同。 还提供了用于执行该方法的控制和通信系统和图形用户界面。
-
公开(公告)号：US06954345B2
公开(公告)日：2005-10-11
申请号：US10198952
申请日：2002-07-22
摘要： A generator for producing high voltages and having at least one generator winding (12) is connected via a generator circuit (10) to a network (19), which generator circuit has means (15, . . . , 17) for protection against overvoltages. Improved protection against higher voltages is achieved in that the at least one generator winding (12) is subdivided into a number of winding sections (12a-c) whose winding insulation is designed such that the insulation level is graduated, and in that the overvoltage protection means have a number of overvoltage protection elements (15, . . . , 17), which are associated with the respective individual winding sections (12a-c) and whose response levels are matched to the requirements of the associated winding section.
摘要翻译： 用于产生高电压并具有至少一个发电机绕组（12）的发电机经由发电机电路（10）连接到网络（19），所述发电机电路具有用于防止过电压的装置（15 ...，17） 。 实现了对更高电压的改进的保护，其中至少一个发电机绕组（12）被细分成多个绕组部分（12交流），其绕组绝缘被设计成使得绝缘水平被刻度，并且其中过电压保护装置 具有与各个单独绕组部分（12ac）相关联并且其响应电平与相关绕组部分的要求相匹配的多个过电压保护元件（15，...，17）。
-
公开(公告)号：US07719285B2
公开(公告)日：2010-05-18
申请号：US12388273
申请日：2009-02-18
IPC分类号： G01R31/14
CPC分类号： H02H3/17 , H02H1/0038 , H02H7/06
摘要： The present invention relates to a ground fault detection arrangement for a synchronous three-phase electrical machine, and an electrical system comprising a ground fault detection arrangement and a synchronous three-phase electrical machine. The ground fault detection arrangement injects an off-nominal frequency voltage between a neutral point of the synchronous three-phase electrical machine and ground and measure resultant currents to detect a ground fault.
摘要翻译： 本发明涉及用于同步三相电机的接地故障检测装置，以及包括接地故障检测装置和同步三相电机的电气系统。 接地故障检测装置在同步三相电机的中性点和接地之间注入标称频率电压，并测量合成电流以检测接地故障。
-
8.发明申请Method and a Device for Selecting and Dimensioning Measures in a Case of Instability in an Electrical Power 有权在电力不稳定的情况下选择和维度措施的方法和装置公开(公告)号：US20070257561A1
公开(公告)日：2007-11-08
申请号：US10585126
申请日：2004-12-23
申请人： Daniel Karlsson , Sture Lindahl
发明人： Daniel Karlsson , Sture Lindahl
IPC分类号： H02J3/12
CPC分类号： H02J3/24 , H02J2003/007 , Y02E60/76 , Y04S40/22 , Y10T307/391 , Y10T307/469 , Y10T307/724 , Y10T307/729
摘要： A method for determining/dimensioning measures for restoring an electrical power system, which experiences or is heading for a voltage instability, to a steady-state condition, wherein there is no immediate risk of instability. An actual voltage/phase angle in the electrical power system is determined. The power unbalance within at least one sub-area in the electrical power system is determined. Suitable power-balancing measures are determined. The extent of the respective measures is determined. The power-balancing measures are carried out. Also, a device for carrying out the method.
摘要翻译： 一种用于将经历或正在导向电压不稳定性的电力系统恢复到稳态条件的措施的尺寸确定方法，其中不存在不稳定的立即风险。 确定电力系统中的实际电压/相位角。 确定电力系统中至少一个子区域内的电力不平衡。 确定适当的功率平衡措施。 确定各项措施的范围。 实施电力平衡措施。 另外，用于执行该方法的装置。
-
9.发明授权Method and a device for selecting and dimensioning measures in a case of instability in an electrical power system 有权在电力系统不稳定的情况下，用于选择和确定尺寸的方法和装置公开(公告)号：US07732943B2
公开(公告)日：2010-06-08
申请号：US10585126
申请日：2004-12-23
申请人： Daniel Karlsson , Sture Lindahl
发明人： Daniel Karlsson , Sture Lindahl
IPC分类号： H02J3/14
CPC分类号： H02J3/24 , H02J2003/007 , Y02E60/76 , Y04S40/22 , Y10T307/391 , Y10T307/469 , Y10T307/724 , Y10T307/729
摘要： A method for determining/dimensioning measures for restoring an electrical power system, which experiences or is heading for a voltage instability, to a steady-state condition, wherein there is no immediate risk of instability. An actual voltage/phase angle in the electrical power system is determined. The power unbalance within at least one sub-area in the electrical power system is determined. Suitable power-balancing measures are determined. The extent of the respective measures is determined. The power-balancing measures are carried out. Also, a device for carrying out the method.
摘要翻译： 一种用于将经历或正在导向电压不稳定性的电力系统恢复到稳态条件的措施的尺寸确定方法，其中不存在不稳定的立即风险。 确定电力系统中的实际电压/相位角。 确定电力系统中至少一个子区域内的电力不平衡。 确定适当的功率平衡措施。 确定各项措施的范围。 实施电力平衡措施。 另外，用于执行该方法的装置。
-
公开(公告)号：US20090160454A1
公开(公告)日：2009-06-25
申请号：US12388273
申请日：2009-02-18
IPC分类号： G01R31/12
CPC分类号： H02H3/17 , H02H1/0038 , H02H7/06
摘要： The present invention relates to a ground fault detection arrangement for a synchronous three-phase electrical machine, and an electrical system comprising a ground fault detection arrangement and a synchronous three-phase electrical machine. The ground fault detection arrangement injects an off-nominal frequency voltage between a neutral point of the synchronous three-phase electrical machine and ground and measure resultant currents to detect a ground fault.
摘要翻译： 本发明涉及用于同步三相电机的接地故障检测装置，以及包括接地故障检测装置和同步三相电机的电气系统。 接地故障检测装置在同步三相电机的中性点和接地之间注入标称频率电压，并测量合成电流以检测接地故障。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.029 秒)