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1. 发明授权

US10012681B2 Testing of a substation automation system 有权
公开(公告)号：US10012681B2
公开(公告)日：2018-07-03
申请号：US15081333
申请日：2016-03-25
申请人： ABB Technology AG
发明人： Wolfgang Wimmer
IPC分类号： G01R21/133 , H04L12/26 , H02H3/04 , H02H7/26
CPC分类号： G01R21/133 , H02H3/044 , H02H7/26 , H04L43/50 , Y04S40/168
摘要： The invention supports and promotes testing of Substation Automation (SA) functions involving intermediary Logical Nodes (LN) in SA systems of operating substations, specifically with minimized impact on the substation and/or the SA system and without having to completely deactivate or isolate entire parts of the substation. A test is set up by defining at least one input LN where the test scenario input signals will be applied, and by determining output LNs where expected output values shall be observed. Based on the data flow between LNs as defined in the System Configuration Description (SCD) file a test preparing tool automatically determines all intermediary LNs logically arranged between these input and output LNs. The intermediary LNs and the IEDs that are affected by the function test are identified and subsequently marked for “test” or “simulation” mode.

2. 发明授权

US09970988B2 Relay abnormality detection device and power conditioner 有权
公开(公告)号：US09970988B2
公开(公告)日：2018-05-15
申请号：US15386397
申请日：2015-11-20
申请人： TABUCHI ELECTRIC CO., LTD.
发明人： Chienru Lung , Hideki Hidaka
IPC分类号： G01R31/327 , H02H7/26 , H02M7/44 , H03H7/01 , H02J3/38 , H02J7/35
CPC分类号： G01R31/3278 , G01R31/327 , G01R31/3277 , H02H7/26 , H02J3/383 , H02J7/35 , H02M7/44 , H03H7/0115 , Y02E10/563 , Y02E10/566
摘要： A relay abnormality detection device to detect an abnormality of a grid interconnection relay upon switching to grid independent operation and includes an abnormality detector to execute commercial power system voltage for determining whether or not there is a commercial power system voltage, if there is commercial power system voltage through the commercial power system voltage determination, first current determination of abnormality determination as to the specific relay according to whether or not there is an input current to the power conditioner in a state where a contact of the specific relay is controlled to open, and if there is no commercial power system voltage through commercial power system voltage determination, second current determination of abnormality determination as to the specific relay according to whether or not there is an output current from the power conditioner in the state where the contact of the specific relay is controlled to open.

3. 发明申请

US20180123337A1 System and method for managing short-circuits in a meshed electrical energy distribution network of an aircraft 审中-公开
公开(公告)号：US20180123337A1
公开(公告)日：2018-05-03
申请号：US15793069
申请日：2017-10-25
申请人： Airbus Operations SAS
发明人： Christian DONADILLE , Franck CHABOT , Florian FAHY
IPC分类号： H02H7/28 , G01R31/08 , H02H3/40 , H02H7/22
CPC分类号： H02H7/28 , G01R31/086 , H02H3/025 , H02H3/027 , H02H3/40 , H02H7/222 , H02H7/26 , H02H7/30 , H02H9/025
摘要： A system for managing short-circuits in an aircraft meshed electrical energy distribution network, comprising nodes connected to one another by inter-node links forming a mesh of the network. A system node comprises a switch, a current limiter, circuitry elements to measure the current intensity circulating on the link and circuitry elements to measure a voltage drop on the link, and a control unit configured to acquire a link current measurement, compare the measurement with a predetermined current threshold and, if the measurement exceeds this threshold, command the current limiter to limit the link current, acquire a link voltage drop measurement, determine a time associated with the value of the voltage drop and check whether the voltage drop is still present after a time period equal to the time obtained, and if the voltage drop is still present then, command the opening of the switch corresponding to this link.

4. 发明申请

US20180006454A1 SURGE SUPPRESSION SYSTEM FOR MEDIUM AND HIGH VOLTAGE 审中-公开
公开(公告)号：US20180006454A1
公开(公告)日：2018-01-04
申请号：US15653406
申请日：2017-07-18
申请人： Asator Global Technologies LLC
发明人： Daryl Moore , Jon Yarusso
IPC分类号： H02J3/16 , H02J3/38 , H02J3/18 , H02H9/00 , H02H7/26 , H02J3/46 , H02H5/00
CPC分类号： H02J3/16 , H02H5/005 , H02H7/26 , H02H9/005 , H02J3/18 , H02J3/382 , H02J3/46
摘要： A system of surge suppressor units is connected at multiple locations on a power transmission and distribution grid to provide grid level protection against various disturbances before such disturbances can reach or affect facility level equipment. The surge suppressor units effectively prevent major voltage and current spikes from impacting the grid. In addition, the surge suppressor units include various integration features which provide diagnostic and remote reporting capabilities required by most utility operations. As such, the surge suppressor units protect grid level components from major events such as natural geomagnetic disturbances (solar flares), extreme electrical events (lightning) and human-generated events (EMPs) and cascading failures on the power grid.

5. 发明申请

US20170336464A1 METHOD AND PROTECTION DEVICE FOR GENERATING AN ERROR SIGNAL INDICATING AN ERROR TYPE OF AN ERROR IN A MULTI-PHASE ELECTRICAL ENERGY SUPPLY NETWORK 审中-公开
公开(公告)号：US20170336464A1
公开(公告)日：2017-11-23
申请号：US15533053
申请日：2014-12-12
申请人： Siemens Aktiengesellschaft
发明人： Joerg BLUMSCHEIN , Cezary DZIENIS , Thomas Dawid LINDEL , Yimaz YELGIN
IPC分类号： G01R31/08 , G01R31/42 , H02H7/26
CPC分类号： G01R31/086 , G01R27/08 , G01R31/42 , H02H3/40 , H02H7/26
摘要： A method for generating an error signal indicating an error type of an error in a multi-phase electrical energy supply network. Measured values describe a current operating state of the network. The measured values are transmitted to a protection device. An evaluating device evaluates every possible loop of the network that can be affected with respect to the recognition of the error type of an error, by using the measured values. In order to be able to more reliably recognize the error type even under different network conditions, the measured values and/or values derived from the measured values are evaluated using at least two different protection criteria, for every possible loop. Each of the protection criteria is suitable for indicating an error type of an error present in the evaluated loop, and the error signal is generated in consideration of all available evaluation results of the protection criteria.

6. 发明授权

US09742184B2 Systems and methods for grounding power line sections to clear faults 有权
公开(公告)号：US09742184B2
公开(公告)日：2017-08-22
申请号：US15336430
申请日：2016-10-27
申请人： Deep Science, LLC
发明人： Roderick A. Hyde , Muriel Y. Ishikawa , Lowell L. Wood, Jr. , Victoria Y. H. Wood
IPC分类号： H02H9/00 , H02H7/26 , H02H3/06 , H02H9/02 , H02H9/04 , H02H9/08 , G01R31/08 , H02H3/02
CPC分类号： H02H9/00 , G01R31/08 , H02H3/021 , H02H3/066 , H02H7/26 , H02H9/005 , H02H9/02 , H02H9/04 , H02H9/08
摘要： A system for clearing power transmission line faults includes a sensor network configured to communicate with a transmission line and configured to detect one or more faults on the transmission line, a crowbar configured to coordinately switch first and second ends of a section of the transmission line to respective termination points, wherein the crowbar includes first and second grounding switches disposed respectively at about the first and second ends of the section of the transmission line, and a controller configured to receive information from the sensor network and configured to control the switching of the crowbar in response to the information.

7. 发明申请

US20170213678A1 CIRCUIT BREAKING SYSTEM 审中-公开
公开(公告)号：US20170213678A1
公开(公告)日：2017-07-27
申请号：US15412698
申请日：2017-01-23
申请人： FANUC CORPORATION
发明人： Yoshikiyo Tanabe , Masaru Kino , Yoshiki Hashimoto
IPC分类号： H01H47/22 , H02H7/20
CPC分类号： H01H47/22 , H02H3/042 , H02H7/20 , H02H7/26
摘要： A circuit breaking system includes an output device for outputting an output signal; a control device controlled by the output signal; a power input terminal provided in the output device, for supplying power to the control device; a power supply to the output device, which has a ground terminal; a break circuit disposed between a power output terminal and the power input terminal; a switching circuit disposed between the break circuit and the power output terminal; and a short circuit disposed between a ground and a node which connects the power input terminal and the break circuit. The break circuit and the short circuit are operated so as to not be closed at the same time. When the switching circuit is closed, the break circuit is closed while the short circuit is open. When the switching circuit is open, the break circuit is open while the short circuit is closed.

8. 发明申请

US20170168115A1 RELAY ABNORMALITY DETECTION DEVICE AND POWER CONDITIONER 有权
公开(公告)号：US20170168115A1
公开(公告)日：2017-06-15
申请号：US15386397
申请日：2015-11-20
申请人： TABUCHI ELECTRIC CO., LTD.
发明人： Chienru LUNG , Hideki HIDAKA
IPC分类号： G01R31/327 , H03H7/01 , H02H7/26 , H02M7/44
CPC分类号： G01R31/3278 , G01R31/327 , G01R31/3277 , H02H7/26 , H02J3/383 , H02J7/35 , H02M7/44 , H03H7/0115 , Y02E10/563 , Y02E10/566
摘要： A relay abnormality detection device to detect an abnormality of a grid interconnection relay upon switching to grid independent operation and includes an abnormality detector to execute commercial power system voltage for determining whether or not there is a commercial power system voltage, if there is commercial power system voltage through the commercial power system voltage determination, first current determination of abnormality determination as to the specific relay according to whether or not there is an input current to the power conditioner in a state where a contact of the specific relay is controlled to open, and if there is no commercial power system voltage through commercial power system voltage determination, second current determination of abnormality determination as to the specific relay according to whether or not there is an output current from the power conditioner in the state where the contact of the specific relay is controlled to open.

9. 发明申请

US20160334469A1 PHASE AND GROUND PROTECTION USING TILT-LIMITED ADAPTIVE QUADRILATERAL CHARACTERISTIC 有权
标题翻译：使用倾斜有限自适应四边形特征的相位和接地保护
公开(公告)号：US20160334469A1
公开(公告)日：2016-11-17
申请号：US14710232
申请日：2015-05-12
申请人： Schweitzer Engineering Laboratories, Inc.
发明人： Jorge Fernando Calero , Armando Guzman-Casillas
IPC分类号： G01R31/40
CPC分类号： H02H3/042 , G01R19/2513 , H02H3/40 , H02H3/402 , H02H7/26
摘要： A quadrilateral distance module may be used to detect faults in an electrical power system. A resistive coverage of the quadrilateral distance module may be defined by an adaptive resistance blinder. Tilt of the adaptive reactance element and resistance blinders may be limited. When an angle between the sequence-component based, current polarizing quantity and the element loop current does not exceed a predetermined angle threshold, the sequence-component based polarizing quantity may be used. Otherwise, the element loop current may be used to limit the tilt. Fault detection may comprise comparing both the adaptive resistance blinders for forward and reverse load flow conditions to power system stimulus and detecting a fault when the stimulus satisfy either blinder.
摘要翻译：四边形距离模块可用于检测电力系统中的故障。四边形距离模块的电阻覆盖可以由自适应电阻阻挡器限定。自适应电抗元件和阻抗遮挡器的倾斜可能受到限制。当基于序列分量的电流偏振量和元件回路电流之间的角度不超过预定角度阈值时，可以使用基于顺序分量的偏振量。否则，可以使用元件回路电流来限制倾斜。故障检测可以包括将正向和反向负载流量条件的自适应阻抗遮挡器与电力系统刺激相比较，并且当刺激满足阻燃剂时检测故障。

10. 发明授权

US09478968B2 Fast distance protection for energy supply networks 有权
标题翻译：能源供应网络的快速距离保护
公开(公告)号：US09478968B2
公开(公告)日：2016-10-25
申请号：US13809086
申请日：2010-07-09
申请人： Joerg Blumschein , Cezary Dzienis , Matthias Kereit
发明人： Joerg Blumschein , Cezary Dzienis , Matthias Kereit
IPC分类号： H02H1/00 , G01R31/02 , G01R31/08 , H02H7/26
CPC分类号： H02H1/0092 , G01R31/025 , G01R31/085 , H02H7/26
摘要： A method for detecting a short circuit on a multiphase electrical energy supply network line includes recording current and voltage sampled values and generating a fault signal upon a fault evaluation performed by an electrical protection device indicating a short circuit. Instantaneous reference voltage values are calculated from instantaneous current and voltage sampled values recorded before the short, and instantaneous comparative voltage values are calculated from instantaneous current and voltage sampled values recorded before the short and instantaneous current and voltage sampled values recorded during the short, to generate a fault signal quickly. Then a rectified reference voltage value is calculated from consecutive instantaneous reference voltage values, and a rectified comparative voltage value is calculated from consecutive instantaneous comparative voltage values. The fault signal is generated if a difference between rectified comparative voltage and rectified reference voltage values exceeds a triggering threshold value. A corresponding electrical protection device is provided.
摘要翻译：用于检测多相电能网络线路上的短路的方法包括记录电流和电压采样值，并且在由指示短路的电气保护装置执行的故障评估时产生故障信号。从短时间之前记录的瞬时电流和电压采样值计算瞬时参考电压值，并且从短时间内记录的短瞬时电流和电压采样值之前记录的瞬时电流和电压采样值计算瞬时比较电压值，以产生一个故障信号很快。然后从连续的瞬时参考电压值计算整流的参考电压值，并从连续的瞬时比较电压值计算整流的比较电压值。如果整流的比较电压和整流的参考电压值之间的差异超过触发阈值，则产生故障信号。提供相应的电气保护装置。

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