公开(公告)号：US20140350729A1

公开(公告)日：2014-11-27

申请号：US14282210

申请日：2014-05-20

Applicant: Rinnai Corporation

Inventor： Kumiko Okada ,  Naohisa Ogawa

IPC: H02H7/00 ,  F02D28/00

CPC classification number: F23N5/00 ,  F23N2023/04 ,  F23N2023/08 ,  F23N2023/30 ,  F23N2023/44 ,  Y02T50/677

Abstract: A combustion control system includes: a memory section having stored therein each control data corresponding to each of the models; a switch input section designating setting contents of each model, the setting contents being set for each of the setting items relating to the operation by switched-on/switched-off state of each switch; and an instruction section which instructs the combustion control based on control. The switch input section is provided with at least two groups each being made up of a plurality of switches. An abnormality distinguishing section is provided to distinguish whether on-off states of one group of switches and on-off states of the other group of switches coincide with each other. When the on-off states are distinguished not to coincide with each other, an instruction is given to stop the combustion control. Incomplete combustion is thus prevented even at the time of failure or wrong operation of switches.

Abstract translation: 燃烧控制系统包括：存储部，其中存储有与每个模型对应的每个控制数据; 指定每个型号的设置内容的开关输入部分，针对与每个开关的接通/断开状态的操作相关的每个设置项目设置设置内容; 以及基于控制指示燃烧控制的指示部。 开关输入部设置有至少两组，每组由多个开关构成。 提供异常判别部，以区分开关的一组开关状态和另一组开关的开 - 关状态是否一致。 当断开状态被区别为不相符时，给出停止燃烧控制的指令。 因此，即使在故障或开关的错误操作时也防止了不完全燃烧。

公开(公告)号：US08886267B2

公开(公告)日：2014-11-11

申请号：US12951293

申请日：2010-11-22

Applicant: Douglas C. Folts ,  James Maguire ,  Jie Yuan ,  Alexis P. Malozemoff

Inventor： Douglas C. Folts ,  James Maguire ,  Jie Yuan ,  Alexis P. Malozemoff

IPC: H01B12/02 ,  H01B12/00 ,  H01L39/24 ,  H02H7/00

CPC classification number: H01B12/02 ,  H01B12/16 ,  H01L39/16 ,  H02H7/001 ,  H02H9/023 ,  Y02E40/641 ,  Y02E40/647 ,  Y02E40/68 ,  Y02E40/69

Abstract: A cryogenically-cooled HTS cable is configured to be included within a utility power grid having a maximum fault current that would occur in the absence of the cryogenically-cooled HTS cable. The cryogenically-cooled HTS cable includes a continuous liquid cryogen coolant path for circulating a liquid cryogen. A continuously flexible arrangement of HTS wires has an impedance characteristic that attenuates the maximum fault current by at least 10%. The continuously flexible arrangement of HTS wires is configured to allow the cryogenically-cooled HTS cable to operate, during the occurrence of a maximum fault condition, with a maximum temperature rise within the HTS wires that is low enough to prevent the formation of gas bubbles within the liquid cryogen.

Abstract translation: 低温冷却的HTS电缆被配置为包括在具有在没有低温冷却HTS电缆的情况下将发生的最大故障电流的公用电网中。 低温冷却HTS电缆包括用于循环液体冷冻剂的连续液体冷冻剂冷却剂路径。 HTS导线的连续灵活布置具有将最大故障电流衰减至少10％的阻抗特性。 HTS导线的连续柔性布置被配置为允许低温冷却的HTS电缆在最大故障状态发生期间在HTS导线内的最大温度上升以足够低以防止气泡形成 液体冷冻剂。

公开(公告)号：US08879219B2

公开(公告)日：2014-11-04

申请号：US13967532

申请日：2013-08-15

Applicant: Searete LLC

Inventor： Roderick A. Hyde ,  Muriel Y. Ishikawa ,  Lowell L. Wood, Jr. ,  Victoria Y. H. Wood

IPC: H02H7/00 ,  H02H3/06 ,  H02H7/26 ,  H02H3/02

CPC classification number: H02H9/00 ,  G01R31/08 ,  H02H3/021 ,  H02H3/066 ,  H02H7/26 ,  H02H9/005 ,  H02H9/02 ,  H02H9/04 ,  H02H9/08

Abstract: Systems and methods for dynamically clearing faults in a power transmission line involve automatically terminating ends of a section of the power line while preserving electrical and/or physical continuity of the power line. The terminating of the ends is reversed at about voltage zero-crossings in the power line to clear a fault.

Abstract translation: 用于动态清除输电线路故障的系统和方法包括自动终止电力线路的一部分的端部，同时保持电力线路的电气和/或物理连续性。 端部的端接在电源线中的大约电压过零点处反向，以清除故障。

公开(公告)号：US08867184B2

公开(公告)日：2014-10-21

申请号：US13146091

申请日：2010-01-28

Applicant: Renato Kitchener ,  Gunther Rogoll

Inventor： Renato Kitchener ,  Gunther Rogoll

IPC: H02H3/00 ,  H02H7/00 ,  G06F1/30 ,  H02J1/10

CPC classification number: H02J1/10 ,  G06F1/30

Abstract: An electrical circuit comprising a power supply, a load, first and second trunks disposed therebetween and control means adapted to control the electrical status of the first and second trunks, in which the control means comprises monitoring means adapted to monitor the current and/or voltage of the first and second trunks and to detect current and/or voltage events which are indicative of faults occurring thereon, and isolation means adapted to isolate the first or second trunk when the monitoring means detects a current and/or voltage event which is indicative of a fault occurring thereon, in which the first and second trunks are electrically connected and arranged in parallel such that the power supplied to the load is distributed substantially equally between them, and in which the control means comprises compensation means adapted to prevent the isolation means from isolating one of said first or second trunks when a current and/or voltage event which is indicative of a fault occurs thereon which is caused by a fault occurring on the other of the first or second trunks.

Abstract translation: 一种电路，包括电源，负载，设置在其间的第一和第二干线，以及适于控制第一和第二干线的电气状态的控制装置，其中控制装置包括适于监测电流和/或电压的监控装置 并且检测指示其上发生的故障的电流和/或电压事件;以及隔离装置，其适于在监视装置检测到指示的第一和第二干线的电流和/或电压事件时隔离第一或第二干线 其中发生故障，其中第一和第二干线电连接并且并联布置，使得供应到负载的功率在它们之间基本上平均地分布，并且其中控制装置包括补偿装置，其适于防止隔离装置 当指示故障存在的电流和/或电压事件时，隔离所述第一或第二干线中的一个 其由在第一或第二树干的另一个上发生的故障引起。

公开(公告)号：US08867181B2

公开(公告)日：2014-10-21

申请号：US13244052

申请日：2011-09-23

Applicant: S. M. Nayeem Hasan ,  Steven E. Schulz ,  David P. Tasky

Inventor： S. M. Nayeem Hasan ,  Steven E. Schulz ,  David P. Tasky

IPC: H02H5/04 ,  H02H3/00 ,  G01R31/34 ,  H02P21/00 ,  H02H7/00 ,  H02P29/02

CPC classification number: H02P29/022 ,  H02H7/00 ,  H02P21/22 ,  H02P29/0243 ,  H02P29/032

Abstract: Methods and apparatus are provided for detecting a phase current sensor fault in a multi-phase electrical motor. The method comprises, receiving an input torque command T* and measuring a set of feedback signals of the motor including a phase current Ix for each of the phases of the motor, generating direct and quadrature command phase currents Id*, Iq* for the motor corresponding to a value of the input torque command T*, determining a total command current Is=[(Iq*)2+(Id*)2]½, generating a negative sequence current Ineg, where for three phases Ineg=(⅓)[Ia+(α2)Ib+(α)Ic], where α=ej2π/3, combining Ineg and Is to provide a normalized negative sequence current Inn=Ineg/Is, comparing the normalized negative sequence current Inn to a predetermined threshold value INN* to determine the presence of a phase current sensor fault, and executing a control action when Inn>INN*.

Abstract translation: 提供了用于检测多相电动机中的相电流传感器故障的方法和装置。 该方法包括：接收输入转矩指令T *并测量电动机的一组反馈信号，该电动机的每个相位包括相电流Ix，为电动机产生直接和正交指令相电流Id *，Iq * 对应于输入转矩指令T *的值，确定总指令电流Is = [（Iq *）2+（Id *）2] 1/2，产生负序电流Ineg，其中三相Ineg =（1/3） [Ia +（α2）Ib +（α）Ic]，其中α= ej2＆pgr; / 3，组合Ineg和Is，以提供归一化的负序电流Inn = Ineg / Is，将归一化负序电流Inn与预定阈值INN *确定相电流传感器故障的存在，并在Inn> INN *时执行控制动作。

公开(公告)号：US08861147B2

公开(公告)日：2014-10-14

申请号：US13455954

申请日：2012-04-25

Applicant: Jeffrey Joseph White ,  Evelyn M. Matheson ,  Kamiar J. Karimi

Inventor： Jeffrey Joseph White ,  Evelyn M. Matheson ,  Kamiar J. Karimi

IPC: H02H7/00

CPC classification number: H02H3/0935 ,  H02H3/006 ,  H02H3/305 ,  H02H7/06 ,  H02H7/26

Abstract: A system and method for protecting a power system. A generator is tripped in response to identifying a current on the generator that is greater than a first current threshold for a first time delay. The generator is also tripped in response to identifying the current on the generator that is greater than a second current threshold for a second time delay. The first current threshold is larger than the second current threshold and the first time delay is shorter than the second time delay.

Abstract translation: 一种用于保护电力系统的系统和方法。 响应于识别发电机上的电流大于第一时间延迟的第一电流阈值，发生器被跳闸。 响应于识别发电机上的电流大于第二时间延迟的第二电流阈值，发生器也跳闸。 第一电流阈值大于第二电流阈值，并且第一时间延迟小于第二时间延迟。

公开(公告)号：US08854781B2

公开(公告)日：2014-10-07

申请号：US13846430

申请日：2013-03-18

Applicant: Albert Bulliard ,  Benoit Fragniere ,  Joel Oehen

Inventor： Albert Bulliard ,  Benoit Fragniere ,  Joel Oehen

IPC: H02H3/00 ,  H02H7/00 ,  H01J37/34 ,  H02H1/06 ,  H02H3/38 ,  H01J37/32

CPC classification number: H02H3/38 ,  H01J37/32045 ,  H01J37/3444 ,  H02H1/06

Abstract: A power supply device for plasma processing, wherein electric arcs may occur, comprises a power supply circuit for generating a voltage across output terminals, and a first switch connected between the power supply circuit and one of the output terminals. According to a first aspect the power supply device comprises a recovery energy circuit connected to the output terminals and to the power supply circuit. According to a second aspect the power supply device comprises an inductance circuit including an inductor and a second switch connected parallel to the inductor. According to a third aspect the power supply device comprises a controller for causing the power supply circuit and the first switch to be switched on and off. The controller is configured to determine a quenching time interval by means of a self-adaptive process. The quenching time interval defines the time interval during which, in an event of an arc, no voltage is generated across the output terminals.

公开(公告)号：US08842405B2

公开(公告)日：2014-09-23

申请号：US13239749

申请日：2011-09-22

Applicant: Ryotaro Miura ,  Yasunari Tanimura ,  Noriyuki Takagi

Inventor： Ryotaro Miura ,  Yasunari Tanimura ,  Noriyuki Takagi

IPC: H02H7/00 ,  H02M1/32 ,  H03K17/082 ,  H02M7/5387

CPC classification number: H02M1/32 ,  H02M7/53871 ,  H03K17/0828

Abstract: An electronic device that is capable of detecting an abnormal state such that a switching element is unable to be turned off in spite of a drive signal instructing turn-off of the switching element. The device includes a switching element that is driven by controlling a voltage on its control terminal, a drive circuit that controls the voltage on the control terminal of the switching element on the basis on an inputted drive signal to drive the switching element. In cases where there exists a current flowing through the switching element in spite of the drive signal instructing turn-off of the switching element, the drive circuit determines that the switching element is in an abnormal state, and cuts off supply of voltage from a drive power supply circuit to the control terminal of the switching element to thereby turn off the switching element.

Abstract translation: 能够检测异常状态的电子设备，使得即使驱动信号指示开关元件的关断，开关元件也不能被断开。 该装置包括通过控制其控制端子上的电压驱动的开关元件，驱动电路，其基于输入的驱动信号来控制开关元件的控制端子上的电压以驱动开关元件。 在驱动信号指示关断开关元件的情况下，存在流过开关元件的电流的情况下，驱动电路确定开关元件处于异常状态，并切断来自驱动器的电压供应 电源电路连接到开关元件的控制端子，从而断开开关元件。

公开(公告)号：US08837094B2

公开(公告)日：2014-09-16

申请号：US13049244

申请日：2011-03-16

Applicant: Yuuichi Hasegawa

Inventor： Yuuichi Hasegawa

IPC: H02H7/00 ,  H05B41/285 ,  H02M7/00 ,  H02M1/32 ,  G02F1/1335

CPC classification number: H05B41/2855 ,  G02F2001/133612 ,  H02M1/32 ,  H02M7/003

Abstract: A DC/AC inverter substrate includes a voltage abnormality detector circuit. All of a high voltage side detection sensor, a low voltage side detection sensor, and a high-voltage and low-voltage detection sensor in the voltage abnormality detector circuit are disposed without being electrically connected to a secondary side of a transformer or to a connection point. Those detection sensors are not damaged since overvoltage is not applied to the voltage abnormality detector circuit when abnormal discharge occurs because the detection sensors are not electrically connected.

Abstract translation: DC / AC逆变器基板包括电压异常检测电路。 电压异常检测电路中的所有高电压侧检测传感器，低电压侧检测传感器和高电压和低电压检测传感器都被设置而不与电压互感器的次级侧或连接 点。 由于检测传感器没有电连接，所以当出现异常放电时，不会对电压异常检测器电路施加过电压，所以这些检测传感器不被损坏。

公开(公告)号：US08817440B2

公开(公告)日：2014-08-26

申请号：US12517641

申请日：2006-12-08

Applicant: Mike Dommaschk ,  Jörg Dorn ,  Ingo Euler ,  Jörg Lang ,  Quoc-Buu Tu ,  Klaus Würflinger

Inventor： Mike Dommaschk ,  Jörg Dorn ,  Ingo Euler ,  Jörg Lang ,  Quoc-Buu Tu ,  Klaus Würflinger

IPC: H02H7/00

CPC classification number: H02M1/32 ,  H02M5/4585 ,  H02M7/003 ,  H02M7/5387 ,  H02M2007/4835 ,  Y10T307/675

Abstract: A device for converting an electric current includes at least one phase module having an AC terminal and at least one DC terminal. Phase module branches, each of which is equipped with serially connected submodules, are respectively provided between each DC terminal and each AC terminal. Each submodule is provided with at least one power semiconductor. Semiconductor protecting means are connected in parallel or in series to at least one of the power semiconductors to enable the device to withstand even high short-circuit currents for a sufficient period of time. A method for protecting the power semiconductors of the device, is also provided.

Abstract translation: 用于转换电流的装置包括至少一个具有AC端子和至少一个DC端子的相位模块。 每个直流端子和每个交流端子之间分别设置相位模块分支，每个模块分支都配有串联连接的子模块。 每个子模块设置有至少一个功率半导体。 半导体保护装置并联或串联连接至功率半导体中的至少一个，以使器件能够在足够的时间段内承受甚至高的短路电流。 还提供了用于保护设备的功率半导体的方法。