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公开(公告)号：US09557754B2
公开(公告)日：2017-01-31
申请号：US14258667
申请日：2014-04-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ara Panosyan , Eva-Maria Baerthlein , Simon Herbert Schramm , Stefan Schroeder , Rohit Kumar Gupta , Pinwan Thiwanka Bandara Wijekoon , Malcolm Graham Smith, Jr.
CPC classification number: G05F1/20 , H01F29/04 , H01H9/0005
Abstract: A method of switching taps of an on-load tap changer includes providing a main finger, a first side finger including a first solid state switch and a second side finger including a second solid state switch. The main finger, the first side finger and the second side finger are utilized to provide a connection between the taps and a power terminal of the on-load tap changer. The method also includes triggering the on-load tap changer to shift the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received and utilizing the first solid state switch and the second solid state switch to commutate a current during the tap change operation.
Abstract translation: 一种开关有载分接开关的抽头的方法包括提供主指，包括第一固态开关的第一侧指和包括第二固态开关的第二侧指。 主指状物，第一侧指和第二侧指用于提供抽头与有载分接开关的电源端之间的连接。 该方法还包括当接收到抽头变换信号时触发有载分接开关将手指从第一抽头移动到有载分接开关的第二抽头，并利用第一固态开关和第二固态开关 在分接变换操作期间换向电流。
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公开(公告)号：US20150303861A1
公开(公告)日：2015-10-22
申请号：US14258756
申请日：2014-04-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ara Panosyan , Luca Parolini , Eva-Maria Baerthlein , Daniel Kotzor
CPC classification number: H02S40/30 , H01L31/02021 , Y02E10/50
Abstract: A system for online filtering of photovoltaic (PV) output signals includes a programmable filter that is programmed to decompose measured PV output power into an estimated low-frequency signal component, based substantially on movement of the sun and an estimated high-frequency signal component, based substantially on cloud shading. An open loop controller generates a reactive power compensation signal based on at least one of the low-frequency signal component and the high-frequency signal component. The low-frequency signal component is defined by a positive portion of a sine curve that is based substantially on movement of the sun.
Abstract translation: 用于在线过滤光伏（PV）输出信号的系统包括可编程滤波器，其被编程为基于太阳的移动和估计的高频信号分量来将测量的PV输出功率分解成估计的低频信号分量， 基于云阴影。 开环控制器基于低频信号分量和高频信号分量中的至少一个产生无功功率补偿信号。 低频信号分量由基本上基于太阳移动的正弦曲线的正部分限定。
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公开(公告)号：US10283962B2
公开(公告)日：2019-05-07
申请号：US14906281
申请日：2013-07-25
Applicant: General Electric Company
Inventor： Ara Panosyan , Eva-Maria Baerthlein
Abstract: A method for compensating self-induced voltage variations includes computing a first reactive power value (Q1), obtaining a voltage value at a point of interconnection (POI) between at least one power source and a power grid, comparing the voltage value with one or more pre-defined voltage limits, computing at least one compensation factor (CF) corresponding to at least one portion of the first reactive power value (Q1) based on an output of the comparison between the voltage value and the one or more pre-defined voltage limits, computing a second reactive power value (Q2) as a function of the at least one portion of the first reactive power value (Q1) and the at least one CF, generating a reactive power compensation command based on the computed second reactive power value (Q2), and transmitting the reactive power compensation command to a power converter.
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公开(公告)号：US20170250542A1
公开(公告)日：2017-08-31
申请号：US15054131
申请日：2016-02-26
Applicant: General Electric Company
Inventor： Ara Panosyan , Piniwan Thiwanka Bandara Wijekoon , Stefan Schroeder , Eva-Maria Baerthlein
IPC: H02J4/00
Abstract: A power distribution system for providing a desired value of voltage regulation is presented. The system includes at least one power source, at least one sink, a distribution feeder configured to couple the at least one power source to the at least one sink. The system includes a plurality of modular voltage regulation units coupled to the distribution feeder, where each of the plurality of modular voltage regulation units includes a transformer including a primary winding having a first end and a second end and a secondary winding having a first end and a second end; and at least one switch coupled to the primary winding of the transformer, where the first end of the secondary winding is coupled to at least one of the first and second ends of the primary winding via the at least one switch. A method of operating a power distribution system is also presented.
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公开(公告)号：US20180081380A1
公开(公告)日：2018-03-22
申请号：US15269110
申请日：2016-09-19
Applicant: General Electric Company
Inventor： Eva-Maria Baerthlein , Eva Bernal Serra , Marianne Luise Susanne Hartung , Ara Panosyan , Luca Parolini
IPC: G05F1/147
CPC classification number: G05F1/147 , H02J3/12 , H02J3/1878 , H02J3/381 , H02J3/382 , H02J13/0013 , H02J2003/007
Abstract: An electric power system includes an OLTC transformer including a plurality of primary and secondary windings inductively coupled to each other. The electric power system includes at least one on-load tap changer coupled to at least one of the primary and secondary windings that is selectively configurable to regulate the portion of the primary and secondary windings inductively coupled to each other. The electric power system also includes a plurality of buses coupled to the transformer and are positioned downstream therefrom. The electric power system further includes at least one processor coupled to the tap changer configured to regulate a voltage bandwidth of the tap changer as a function of estimated voltage values of at least one bus as estimated based on a priori values of power/current transmitted through each bus. The a priori values are substantially based on measured power/current transmission through the on-load tap changer.
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Patent Agency Ranking
6.发明授权System and method for operating an on load tap changer for regulating voltage on an electric power system 有权用于操作用于调节电力系统电压的有载分接开关的系统和方法公开(公告)号：US09400512B2
公开(公告)日：2016-07-26
申请号：US14109290
申请日：2013-12-17
Applicant: General Electric Company
Inventor： Eva-Maria Baerthlein , Ara Panosyan
CPC classification number: G05F1/14 , H02J3/1878 , H02P13/06 , Y02E40/30
Abstract: An electric power system includes an on-load tap changing (OLTC) transformer. The transformer includes a plurality of primary windings and a plurality of secondary windings. At least a portion of one of the primary windings and the secondary windings are inductively coupled to each other. The system also includes at least one on-load tap changer coupled to at least one of the primary windings and the secondary windings. The on-load tap changer is selectively configurable to regulate the portion of at least one of the primary windings and the secondary windings inductively coupled to each other. The system further includes at least one processor coupled to the on-load tap changer. The processor is configured to adaptively regulate a voltage set-point of the on-load tap changer as a function of an adaptive OLTC transformer power flow dependent voltage set-point characteristic.
Abstract translation: 电力系统包括有载分接变换（OLTC）变压器。 变压器包括多个初级绕组和多个次级绕组。 初级绕组和次级绕组中的一个的至少一部分彼此电感耦合。 该系统还包括耦合到初级绕组和次级绕组中的至少一个的至少一个有载分接开关。 有载分接开关可选择性地配置为调节彼此感应耦合的初级绕组和次级绕组中的至少一个的部分。 该系统还包括耦合到有载分接开关的至少一个处理器。 该处理器被配置为根据自适应OLTC变压器功率流依赖电压设定点特性自适应地调节有载分接开关的电压设定点。
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公开(公告)号：US20150301538A1
公开(公告)日：2015-10-22
申请号：US14258667
申请日：2014-04-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ara Panosyan , Eva-Maria Baerthlein , Simon Herbert Schramm , Stefan Schroeder , Rohit Kumar Gupta , Pinwan Thiwanka Bandara Wijekoon , Malcolm Graham Smith, Jr.
IPC: G05F1/20
CPC classification number: G05F1/20 , H01F29/04 , H01H9/0005
Abstract: A method of switching taps of an on-load tap changer includes providing a main finger, a first side finger including a first solid state switch and a second side finger including a second solid state switch. The main finger, the first side finger and the second side finger are utilized to provide a connection between the taps and a power terminal of the on-load tap changer. The method also includes triggering the on-load tap changer to shift the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received and utilizing the first solid state switch and the second solid state switch to commutate a current during the tap change operation.
Abstract translation: 一种开关有载分接开关的抽头的方法包括提供主指，包括第一固态开关的第一侧指和包括第二固态开关的第二侧指。 主指状物，第一侧指和第二侧指用于提供抽头与有载分接开关的电源端之间的连接。 该方法还包括当接收到抽头变换信号时触发有载分接开关将手指从第一抽头移动到有载分接开关的第二抽头，并利用第一固态开关和第二固态开关 在分接变换操作期间换向电流。
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公开(公告)号：US09570252B2
公开(公告)日：2017-02-14
申请号：US14164620
申请日：2014-01-27
Applicant: General Electric Company
Inventor： Piniwan Thiwanka Bandara Wijekoon , Eva-Maria Baerthlein , Simon Herbert Schramm , Stefan Schroeder , Ara Panosyan , Rohit Kumar Gupta
CPC classification number: H01H9/542 , H01F29/04 , H01H9/0005 , H01H9/0016 , H01H9/0027 , H01H2009/546
Abstract: A system for operating an on-load tap changer (OLTC) includes a plurality of legs that include mechanical switches. At least one leg switches from a first to a second tap of the OLTC on receipt of a tap change signal. At least one mechanical switch is activated to establish an electrical connection between one of the first and the second tap and a power terminal of the OLTC. Further, the system includes semiconductor switches that are parallel to the mechanical switches and when activated electrically couple one of the first and the second tap and the power terminal. The system includes a processing unit that selectively activates and deactivates the mechanical and semiconductor switches in such a way that electrical contact is maintained between at least one of the taps and the power terminal during the transition of at least one leg from the first tap to the second tap.
Abstract translation: 用于操作有载分接开关（OLTC）的系统包括多个包括机械开关的支脚。 在接收到抽头变换信号时，至少一个支路从OLTC的第一个抽头切换到第二个抽头。 至少一个机械开关被激活以在第一和第二抽头中的一个和OLTC的电源端之间建立电连接。 此外，该系统包括与机械开关平行的半导体开关，并且当被激活时电耦合第一和第二抽头之一以及电源端子。 该系统包括处理单元，其选择性地激活和停用机械和半导体开关，使得在至少一个支路从第一分接头到第一分接头的转换期间电触头保持在至少一个抽头和电源端子之间 第二击。
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公开(公告)号：US09531321B2
公开(公告)日：2016-12-27
申请号：US14258756
申请日：2014-04-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ara Panosyan , Luca Parolini , Eva-Maria Baerthlein , Daniel Kotzor
CPC classification number: H02S40/30 , H01L31/02021 , Y02E10/50
Abstract: A system for online filtering of photovoltaic (PV) output signals includes a programmable filter that is programmed to decompose measured PV output power into an estimated low-frequency signal component, based substantially on movement of the sun and an estimated high-frequency signal component, based substantially on cloud shading. An open loop controller generates a reactive power compensation signal based on at least one of the low-frequency signal component and the high-frequency signal component. The low-frequency signal component is defined by a positive portion of a sine curve that is based substantially on movement of the sun.
Abstract translation: 用于在线过滤光伏（PV）输出信号的系统包括可编程滤波器，其被编程为基于太阳的移动和估计的高频信号分量来将测量的PV输出功率分解成估计的低频信号分量， 基于云阴影。 开环控制器基于低频信号分量和高频信号分量中的至少一个产生无功功率补偿信号。 低频信号分量由基本上基于太阳移动的正弦曲线的正部分限定。
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公开(公告)号：US20150162144A1
公开(公告)日：2015-06-11
申请号：US14099155
申请日：2013-12-06
Applicant: General Electric Company
Inventor： Ara Panosyan , Eva-Maria Baerthlein , Simon Schramm , Stefan Schroeder , Malcolm Graham Smith, JR. , Piniwan Thiwanka Bandara Wijekoon
IPC: H01H9/00
CPC classification number: H01H9/0011 , H01F29/04 , H01H9/0005 , H01H9/0016
Abstract: A method of switching taps by an on-load tap changer includes providing at least two fingers each comprising an impedance and a mechanical switch. When first and second mechanical switches of the first and second fingers are closed, they provide a connection between the first and second impedances of the first and second fingers and a power terminal of the on-load tap changer. The on-load tap changer is triggered to shift at least one of the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received. A solid state switch connected between the first and second impedances is switched on to commutate a current from the first finger to the second finger during the tap change operation.
Abstract translation: 一种通过有载分接开关切换抽头的方法包括提供至少两个手指，每个手指包括阻抗和机械开关。 当第一和第二手指的第一和第二机械开关闭合时，它们提供第一和第二指状件的第一和第二阻抗与有载分接开关的电源端子之间的连接。 当接收到抽头变换信号时，触发有载抽头变换器将至少一个手指从第一抽头移动到有载分接开关的第二抽头。 连接在第一和第二阻抗之间的固态开关被接通以在分接变换操作期间将电流从第一手指转换到第二手指。
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