专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09983244B2 Power transformation system with characterization 有权
公开(公告)号：US09983244B2
公开(公告)日：2018-05-29
申请号：US14301175
申请日：2014-06-10
申请人： Honeywell International Inc.
发明人： Robert D. Juntunen , Jonathan P. Frenz , Devin Diedrich
IPC分类号： G01R27/16 , H02J7/34 , H02J50/00 , G01R19/25
CPC分类号： G01R27/16 , G01R19/2513 , H02J7/345 , H02J50/00 , Y10T307/492
摘要： A power transformation system having a power stealing mode for powering a device indirectly through an electrical load connected to a power source and also has a characterization mode. The transfer of energy from the power source via the load may go undetected. The system may store energy from the load in an ultra or super capacitor. This energy may be used to power Wi-Fi and various thermostat applications, among other things, associated with HVAC and building automation and management systems. Energy from the load may be supplemented or substituted with energy from a battery and/or a buck converter. In the characterization mode, the system may obtain data relative to power usage of a load and determine a profile to identify one or more components and their operating conditions.

2. 发明申请

US20180106848A1 MOBILE ELECTRIC LEAKAGE DETECTION DEVICE AND METHOD 审中-公开
公开(公告)号：US20180106848A1
公开(公告)日：2018-04-19
申请号：US15833836
申请日：2017-12-06
申请人： Hyun Chang LEE
发明人： Hyun Chang LEE
IPC分类号： G01R31/02
CPC分类号： G01R31/025 , G01R27/16 , G01V3/15
摘要： A mobile earth leaking survey apparatus is provided. The apparatus includes a magnetic field sensor. The apparatus includes a plurality of electrodes configured to be capacitively coupled to ground. The apparatus includes a signal timing unit for finding and setting a time T by analyzing signals input from the magnetic field sensor, wherein the time T matches a signal start time of a survey current transmitter. The apparatus includes a signal detection unit for identifying a polarity and a magnitude of a signal from the magnetic field sensor for a predetermined discrete period of time at a predetermined interval time from the time T. The apparatus includes a potential measuring unit for measuring an earth potential value input from the plurality of electrodes.

3. 发明申请

US20180074567A1 MPS GENERATION SYSTEM AND METHOD 审中-公开
公开(公告)号：US20180074567A1
公开(公告)日：2018-03-15
申请号：US15684999
申请日：2017-08-24
申请人： Microsemi P.O.E Ltd.
发明人： Yair DARSHAN
IPC分类号： G06F1/32 , G01R27/16 , G05F3/30 , G05F1/70 , H02J3/02 , H04L12/10
CPC分类号： G06F1/3209 , G01R27/16 , G05F1/70 , G05F3/30 , G06F1/266 , G06F1/3206 , H02J3/02 , H04L12/10 , H04L12/40045
摘要： An MPS generation method, the method constituted of: at a predetermined frequency, alternately outputting a first MPS current pulse for a predetermined first time period and not outputting the first MPS current pulse for a predetermined first off time period; during the first time period, determining the magnitude of a current drawn by an input capacitor of a DC to DC converter; and responsive to the determined input capacitor current magnitude, outputting between the first terminal and the second terminal a second MPS current pulse for a predetermined second time period during the predetermined first off time period.

4. 发明申请

US20170350923A1 LOAD DETECTOR 审中-公开
公开(公告)号：US20170350923A1
公开(公告)日：2017-12-07
申请号：US15612550
申请日：2017-06-02
申请人： NXP B.V.
发明人： Fred Mostert , Gertjan van Holland , Paul Wielage
IPC分类号： G01R17/02 , H03F3/181
CPC分类号： G01R17/02 , G01R27/16 , G01R31/006 , G01R31/2825 , H03F3/181 , H03F3/217 , H03F2200/03 , H03F2200/165 , H03F2200/471 , H03M1/12 , H03M1/66 , H04R3/00 , H04R2420/05
摘要： A method and apparatus of load detection for an audio amplifier system is described. A load detector includes a first load terminal and a second load terminal; a controller coupled to the first and second load terminals and configured to in a first control loop, vary a first current supplied to a first load terminal dependent on the difference between a first reference signal and the detected first load terminal voltage; and in a second control loop, vary a second current supplied to the second load terminal dependent on the difference between a second reference signal and the detected second load terminal voltage; and to determine a current through a load connected between the first load terminal and the second load terminal from the second current value, and a voltage across the load from the detected voltage difference between the first load terminal voltage and the second load terminal voltage.

5. 发明授权

US09797853B2 Insulation resistance measurement for inverters 有权
公开(公告)号：US09797853B2
公开(公告)日：2017-10-24
申请号：US14556290
申请日：2014-12-01
申请人： SMA Solar Technology AG
发明人： Burkard Mueller
IPC分类号： G01R31/02 , G01N27/04 , G01R31/42 , G01R27/02 , G01R27/16
CPC分类号： G01N27/04 , G01R27/025 , G01R27/16 , G01R31/025 , G01R31/42
摘要： During measuring an insulation resistance for an inverter having at least one half-bridge including two active switching elements for driving an output current, and a DC link voltage, a center point of the half-bridge positioned between the switching elements is connected to a grounding point by closing a grounding switch, and the center point connected to the grounding point is connected, one after the other, to a first ungrounded terminal and a second ungrounded terminal of the DC link voltage of the inverter present at the half-bridge by means of the two active switching elements of the half-bridge to establish a connection between the first and second ungrounded terminals, respectively, and the grounding point. A current flowing via the connection to the grounding point is measured using a measuring device.

6. 发明申请

US20170297447A1 BATTERY SYSTEM WITH A BATTERY, WHICH IS DESIGNED TO SUPPLY A HIGH-VOLTAGE NETWORK WITH ELECTRIC ENERGY, AND A MEASURING DEVICE FOR MEASURING AT LEAST ONE INSULATION RESISTANCE OF THE BATTERY 有权
公开(公告)号：US20170297447A1
公开(公告)日：2017-10-19
申请号：US15516066
申请日：2015-08-13
申请人： Robert Bosch GmbH
发明人： Chrysanthos Tzivanopoulos , Thomas Schaedlich
IPC分类号： B60L11/18 , G01R31/02 , G01R27/02 , G01R31/12 , H01M10/48 , G01R27/16 , G01R31/36 , B60W20/00
CPC分类号： B60L11/1851 , B60L3/0069 , B60L3/12 , G01R27/025 , G01R27/16 , G01R31/025 , G01R31/1227 , G01R31/3606 , H01M10/425 , H01M10/48 , H01M2200/00 , H02J7/00 , Y02T10/7005 , Y02T10/705
摘要： The invention relates to a battery system (100) with a battery (20), which is designed to supply a high voltage network (70) with electric energy, and a measuring device (130) for measuring at least one insulation resistance provided between the battery (20) and a housing of the battery (20). The measuring device (130) is equipped with two measuring paths (140, 150), each of which is paired with one of two high-voltage connections (21, 22) of the battery (20), each of which comprises a series circuit that comprises a first resistor (142, 152) and a relay (145, 155), and each of which is connected between the paired high-voltage connection (21, 22) and a point (25) that has a housing potential. Furthermore, each series circuit has a semiconductor switch (147, 157). The measuring device (130) also has two functional modes in which the relays (145, 155) of the measuring paths (140, 150) are closed. When switched to a passive functional mode of the two functional modes, the measuring device (130) is designed to open each semiconductor switch (147, 157) or to keep the semiconductor switch in an open state. When switched to an active functional mode of the two functional modes, the measuring device (130) is additionally designed to alternately open and close the semiconductor switches (147, 157), to measure a first voltage which drops over the first resistor (142, 152) of each measuring path (140, 150) when the semiconductor switch (147, 157) of the corresponding measuring path (140, 150) is closed, and to determine a corresponding insulation resistance of the battery (20) using each measured first voltage.

7. 发明授权

US09588156B2 Monitoring voltage stability of a transmission corridor 有权
标题翻译：监测输电走廊的电压稳定性
公开(公告)号：US09588156B2
公开(公告)日：2017-03-07
申请号：US15050570
申请日：2016-02-23
申请人： Quanta Technology, LLC
发明人： Mevludin Glavic , Vahid Madani , Damir Novosel
IPC分类号： G01R19/25 , H02J3/00 , G01R27/16
CPC分类号： G01R19/2513 , G01R27/16 , H02J3/00
摘要： A voltage stability monitoring apparatus monitors the voltage stability of a transmission corridor through which power flows between different parts of a power system. The apparatus monitors an equivalent load impedance at an interface between the transmission corridor and a part of the power system designated as generating the power. This equivalent load impedance at the interface comprises a ratio of a voltage phasor at the interface to a current phasor at the interface. The apparatus tracks a Thevenin equivalent voltage and impedance of the designated part by separately updating that voltage and impedance. Notably, the apparatus updates the imaginary part of the Thevenin equivalent voltage to reflect the magnitude of any changes in the voltage phasor that are associated with large variations in the magnitude of the equivalent load impedance at the interface. The apparatus computes an index indicating the voltage stability as a function of this tracked Thevenin equivalent voltage and impedance.
摘要翻译：电压稳定性监视装置监视电力系统的不同部分之间电力流动的输电走廊的电压稳定性。该装置监测传输走廊与被指定为产生电力的电力系统的一部分之间的接口处的等效负载阻抗。界面处的等效负载阻抗包括界面处的电压相量与界面处的电流相量的比值。该装置通过单独更新该电压和阻抗来跟踪指定部件的戴维南等效电压和阻抗。值得注意的是，该装置更新了戴维南等效电压的虚部，以反映与界面处的等效负载阻抗的大幅度变化相关联的电压相量的任何变化的幅度。该装置计算指示作为该跟踪的戴维南等效电压和阻抗的函数的电压稳定性的指标。

8. 发明授权

US09500717B1 Method for small-signal stability assessment of power systems using source side and load side series voltage injection perturbations 有权
标题翻译：使用源侧和负载侧串联电压注入扰动的电力系统的小信号稳定性评估方法
公开(公告)号：US09500717B1
公开(公告)日：2016-11-22
申请号：US15131679
申请日：2016-04-18
申请人： The Florida State University Research Foundation, Inc.
发明人： Mohamadamin Salmani , Chris S. Edrington
IPC分类号： G01R31/40 , G01R27/16
CPC分类号： G01R31/40 , G01R19/2506 , G01R19/2513 , G01R27/00 , G01R27/02 , G01R27/16
摘要： A novel method for real-time small-signal stability analysis for power electronic-based components in a power system. The method may be used to monitor a power system in real-time by perturbing the source side of an electronic-based component of the power system of about 0.5 to 1 percent of a nominal current of the power system at the source side, and perturbing the load side of the power electronic-based component by varying the voltage at the load side using a series voltage injection. Time-domain results of the simultaneous perturbations may be transferred to frequency-domain results and the stability of the power system may be monitored by obtaining a Nyquist contour and employing Generalized Nyquist Criterion or unit circle criterion.
摘要翻译：一种用于电力系统中功率电子元件的实时小信号稳定性分析的新颖方法。该方法可以用于通过扰乱电源系统的基于电子的部件的源侧约为电源系统在源侧的额定电流的0.5％至1％而实时监控电力系统，并且扰乱通过使用串联电压注入来改变负载侧的电压的功率电子部件的负载侧。可以将同时扰动的时域结果转移到频域结果，并且可以通过获得奈奎斯特轮廓并采用广义奈奎斯特准则或单位圆标准来监测电力系统的稳定性。

9. 发明申请

US20160327603A1 Electric Grid High Impedance Condition Detection 审中-公开
标题翻译：电网高阻抗条件检测
公开(公告)号：US20160327603A1
公开(公告)日：2016-11-10
申请号：US14702759
申请日：2015-05-04
申请人： Itron, Inc.
发明人： Robert Sonderegger , Timothy James Driscoll
IPC分类号： G01R31/08 , G01N27/02
CPC分类号： G01N27/02 , G01R19/2513 , G01R22/066 , G01R27/08 , G01R27/16 , G01R31/086 , G06Q10/06 , G06Q50/06 , H02J3/00 , H02J2003/007 , Y02E60/74 , Y02E60/76 , Y04S10/30 , Y04S10/522 , Y04S40/22
摘要： Techniques for detecting high impedance conditions in an electrical grid are described herein. In one example, impedance is calculated for each of a plurality of locations within the electrical grid, such as at electrical meters. The impedances may be calculated as a change in voltage divided by a change in current, such as between sequential voltage/current measurements. Statistics may be maintained, including the calculated impedances. In three examples, statistics may be used to identify growth in impedance over multiple days, to identify growth in impedance over multiple hours, and to identify a meter for which impedance is higher than impedance for other meters attached to a single transformer. In a further example, instances of impedance over a threshold value may be identified, from among the maintained statistics. The instances of high impedance may be reported for reasons including cost and safety.
摘要翻译：本文描述了用于检测电网中的高阻抗条件的技术。在一个示例中，针对电网内的多个位置中的每一个，例如在电表上计算阻抗。阻抗可以被计算为电压变化除以电流变化，例如在顺序电压/电流测量之间。可以保持统计，包括计算的阻抗。在三个例子中，可以使用统计数据来识别多天内阻抗的增长，以识别多个小时内的阻抗增长，以及识别阻抗高于连接到单个变压器的其他仪表的阻抗的仪表。在另一示例中，可以从所维护的统计信息中识别超过阈值的阻抗的实例。由于包括成本和安全性在内的原因，可能会报告高阻抗情况。

10. 发明申请

US20160315576A1 Motor Fault Detector 审中-公开
标题翻译：电机故障检测器
公开(公告)号：US20160315576A1
公开(公告)日：2016-10-27
申请号：US15200683
申请日：2016-07-01
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Stephen John Fedigan , Sandun Shivantha Kuruppu , Paul LeRoy Brohlin
IPC分类号： H02P27/06 , G01R31/34
CPC分类号： H02P27/06 , G01R27/16 , G01R31/343 , H02H7/0822 , H02P6/185 , H02P29/0241
摘要： A motor control circuit includes a processor configured to calculate a plurality of motor impedances from measurements of an excitation voltage on a power bus to a motor and measurements of a plurality of currents through the motor resulting from the excitation voltage, and the processor configured to calculate individual winding inductances in the motor, based on the measured motor impedances, and configured to determine whether there is an inter-turn winding fault based on the calculated individual winding inductances.
摘要翻译：电动机控制电路包括处理器，其被配置为从电力总线上的激励电压到电动机的测量值以及由激励电压产生的通过电动机的多个电流的测量来计算多个电动机阻抗，并且处理器被配置为计算基于所测量的电动机阻抗，并且被配置为基于所计算的各个绕组电感来确定是否存在匝间绕组故障。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式