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公开(公告)号：US10056759B2
公开(公告)日：2018-08-21
申请号：US15632259
申请日：2017-06-23
Applicant: Tesla, Inc.
Inventor： Paul Garrity , Aaron Michael Jungreis
CPC classification number: H02J3/383 , H02J1/10 , H02J3/16 , H02J3/18 , H02J3/38 , H02J3/48 , H02J3/50 , H02J13/0075 , H02M1/10 , H02M1/4208 , H02M1/4225 , H02M5/458 , H02M7/48 , H02M7/493 , H02M7/53871 , H02M2001/007 , Y02B70/126 , Y02E10/563 , Y02E40/34 , Y02E40/72 , Y02E60/726 , Y04S10/12 , Y04S10/123 , Y04S10/24 , Y10T307/707
Abstract: We describe a modular adjustable power factor renewable energy inverter system. The system comprises a plurality of inverter modules having a switched capacitor across its ac power output, a power measurement system coupled to a communication interface, and a power factor controller to control switching of the capacitor. A system controller receives power data from each inverter module, sums the net level of ac power from each inverter, determines a number of said capacitors to switch based on the sum, and sends control data to an appropriate number of the inverter modules to switch the determined number of capacitors into/out of said parallel connection across their respective ac power outputs.
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公开(公告)号：US20170146574A1
公开(公告)日：2017-05-25
申请号：US15316221
申请日：2015-05-11
Applicant: Hitachi, Ltd.
Inventor： Eisuke KURODA , Yasuo SATO , Osamu TOMOBE , Jun YAMAZAKI , Masahiro YATSU , Haruki MIYOSHI
CPC classification number: G01R19/2503 , G01R19/2513 , H02J3/06 , H02J3/16 , H02J3/382 , H02J3/383 , H02J3/386 , H02J13/0006 , Y02E10/563 , Y02E10/763 , Y02E40/34 , Y02E40/72 , Y02E60/726 , Y02E60/74 , Y04S10/123 , Y04S10/24 , Y04S10/30
Abstract: A voltage stability monitoring device for monitoring the voltage stability of a system, the device including: an assumed change scenario calculation unit for predicting the output variation of a renewable energy connected to said system and calculating an assumed change time-series power flow state on the basis of said output variation; a time-series voltage stability calculation unit for calculating a node voltage change with respect to demand at each node of said system on the basis of said power flow state calculated by said assumed change scenario calculation unit and calculating a voltage stability indicating the relationship curve between said node voltage and reactive power; and a voltage stability improvement countermeasure search unit for determining a controlled device on which an assumed control is to be performed, according to said voltage stability calculated by said time-series voltage stability calculation unit.
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公开(公告)号：US09600003B2
公开(公告)日：2017-03-21
申请号：US14371196
申请日：2012-03-21
Applicant: Nobuhiko Itaya
Inventor： Nobuhiko Itaya
CPC classification number: G05F1/10 , G05B15/02 , H02J3/16 , H02J3/383 , H02J13/0062 , Y02E10/563 , Y02E40/34 , Y02E40/72 , Y02E40/74 , Y02E60/726 , Y02E60/7838 , Y04S10/123 , Y04S10/22 , Y04S10/24 , Y04S40/124
Abstract: A cooperative voltage sensor (CVS) issues a target voltage change request when a voltage moving average at an end thereof deviates from a proper voltage upper or lower limit value. A cooperative voltage controller (CVC) also can issue a target voltage change request when a voltage moving average at an end thereof deviates from the proper voltage upper or lower limit value. The target voltage change request issued by the cooperative voltage sensor (CVS) or the cooperative voltage controller (CVC) is transferred between cooperative voltage controllers (CVCs) via a communication network and notified to all the cooperative voltage controllers (CVCs), and a cooperative operation of voltage control is realized.
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公开(公告)号：US08682496B2
公开(公告)日：2014-03-25
申请号：US13593314
申请日：2012-08-23
Applicant: Edmund O. Schweitzer, III , David E. Whitehead , Gregary C. Zweigle , Normann Fischer , Robert E. Morris
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , Gregary C. Zweigle , Normann Fischer , Robert E. Morris
IPC: G06F19/00
CPC classification number: H02J3/16 , H02J3/06 , H02J3/1821 , H02J13/0062 , Y02E40/34 , Y02E40/74 , Y02E60/724 , Y02E60/726 , Y02E60/7838 , Y04S10/18 , Y04S10/22 , Y04S10/24 , Y04S40/124 , Y10T307/469
Abstract: A system for controlling and automating an electric power delivery system by executing time coordinated instruction sets to achieve a desired result. A communication master may implement the execution of time coordinated instruction sets in a variety of circumstances. The communication may be embodied as an automation controller in communication with intelligent electronic devices (IEDs). The communication master may also be embodied as an IED that is configured to coordinate the actions of other IEDs. The time coordinated instruction sets may include steps for checking status of power system equipment before executing. The time coordinated instruction sets may include reactionary steps to execute if one of the steps fails. The time coordinated instruction sets may also be implemented based on a condition detected in the electric power delivery system, or may be implemented through high level systems, such as a SCADA system or a wide area control and situational awareness system.
Abstract translation: 一种用于通过执行时间协调指令集来控制和自动化电力输送系统以实现期望结果的系统。 通信主人可以在各种情况下实现时间协调指令集的执行。 通信可以被实现为与智能电子设备（IED）通信的自动化控制器。 通信主机还可以被体现为被配置为协调其他IED的动作的IED。 时间协调指令集可以包括在执行之前检查电力系统设备的状态的步骤。 时间协调指令集可以包括如果其中一个步骤失败则执行的反动步骤。 时间协调指令集还可以基于在电力输送系统中检测到的条件来实现，或者可以通过诸如SCADA系统或广域控制和情境感知系统的高级系统来实现。
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公开(公告)号：US20120323397A1
公开(公告)日：2012-12-20
申请号：US13593314
申请日：2012-08-23
Applicant: Edmund O. Schweitzer, III , David E. Whitehead , Gregary C. Zweigle , Normann Fischer , Robert E. Morris
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , Gregary C. Zweigle , Normann Fischer , Robert E. Morris
IPC: G06F1/26
CPC classification number: H02J3/16 , H02J3/06 , H02J3/1821 , H02J13/0062 , Y02E40/34 , Y02E40/74 , Y02E60/724 , Y02E60/726 , Y02E60/7838 , Y04S10/18 , Y04S10/22 , Y04S10/24 , Y04S40/124 , Y10T307/469
Abstract: A system for controlling and automating an electric power delivery system by executing time coordinated instruction sets to achieve a desired result. A communication master may implement the execution of time coordinated instruction sets in a variety of circumstances. The communication may be embodied as an automation controller in communication with intelligent electronic devices (IEDs). The communication master may also be embodied as an IED that is configured to coordinate the actions of other IEDs. The time coordinated instruction sets may include steps for checking status of power system equipment before executing. The time coordinated instruction sets may include reactionary steps to execute if one of the steps fails. The time coordinated instruction sets may also be implemented based on a condition detected in the electric power delivery system, or may be implemented through high level systems, such as a SCADA system or a wide area control and situational awareness system.
Abstract translation: 一种用于通过执行时间协调指令集来控制和自动化电力输送系统以实现期望结果的系统。 通信主人可以在各种情况下实现时间协调指令集的执行。 通信可以被实现为与智能电子设备（IED）通信的自动化控制器。 通信主机还可以被体现为被配置为协调其他IED的动作的IED。 时间协调指令集可以包括在执行之前检查电力系统设备的状态的步骤。 时间协调指令集可以包括如果其中一个步骤失败则执行的反动步骤。 时间协调指令集还可以基于在电力输送系统中检测到的条件来实现，或者可以通过诸如SCADA系统或广域控制和情境感知系统的高级系统来实现。
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Patent Agency Ranking
公开(公告)号：US09906030B2
公开(公告)日：2018-02-27
申请号：US14655235
申请日：2014-04-18
Applicant: GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTER , STATE GRID GANSU ELETRIC POWER CORPORATION , STATE GRID CORPORATION OF CHINA , NORTH CHINA ELECTRIC POWER UNIVERSITY
Inventor： Ningbo Wang , Wenying Liu , Dan Jin , Jiaming Wang , Yanhong Ma , Cai Liang , Long Zhao , Yalong Li , Qiang Zhou , Jing Wen , Rong Huang , Rundong Ge , Jin Li , Peng Xu
CPC classification number: H02J3/16 , H02J3/38 , H02J3/383 , H02J3/386 , H02J13/0006 , Y02E10/563 , Y02E10/763 , Y02E40/34 , Y02E40/72 , Y02E60/723 , Y02E60/726 , Y04S10/123 , Y04S10/16 , Y04S10/24 , Y10T307/549
Abstract: The present invention has disclosed an optimal control method for reactive voltage of wind power and photovoltaic power centralized grid connection in the field of wind power and photovoltaic power grid connection control technology, comprising: setting actuating stations used to control single wind power plant/photovoltaic power plant, setting substations used to control actuating stations and set master station used to control all the substations; master station calculates setting voltage reference Uref of each substation; adopting 3σ method to process set voltage reference Uref to obtain set voltage reference interval; regulating high-side voltage of substation to make it fall in set voltage reference interval; if high-side voltage of substation does not fall in set voltage reference interval, then regulating the equipment in wind power plant/photovoltaic power plant via actuating station. The present invention guides the actual operations of electric power system.
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公开(公告)号：US20170288407A1
公开(公告)日：2017-10-05
申请号：US15632259
申请日：2017-06-23
Applicant: SolarCity Corporation
Inventor： Paul Garrity , Aaron Michael Jungreis
CPC classification number: H02J3/383 , H02J1/10 , H02J3/16 , H02J3/18 , H02J3/38 , H02J3/48 , H02J3/50 , H02J13/0075 , H02M1/10 , H02M1/4208 , H02M1/4225 , H02M5/458 , H02M7/48 , H02M7/493 , H02M7/53871 , H02M2001/007 , Y02B70/126 , Y02E10/563 , Y02E40/34 , Y02E40/72 , Y02E60/726 , Y04S10/12 , Y04S10/123 , Y04S10/24 , Y10T307/707
Abstract: We describe a modular adjustable power factor renewable energy inverter system. The system comprises a plurality of inverter modules having a switched capacitor across its ac power output, a power measurement system coupled to a communication interface, and a power factor controller to control switching of the capacitor. A system controller receives power data from each inverter module, sums the net level of ac power from each inverter, determines a number of said capacitors to switch based on the sum, and sends control data to an appropriate number of the inverter modules to switch the determined number of capacitors into/out of said parallel connection across their respective ac power outputs.
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公开(公告)号：US20170126032A1
公开(公告)日：2017-05-04
申请号：US14932688
申请日：2015-11-04
Applicant: Powin Energy Corporation
Inventor： Virgil Lee BEASTON
CPC classification number: H02J7/0022 , H01M10/4207 , H02J3/16 , H02J3/32 , H02J7/0016 , H02J7/0021 , H02J7/0026 , H02J7/0034 , H02J7/0047 , H02J7/0068 , H02J13/0006 , H02J13/0075 , H02J13/0079 , H02J2007/0037 , H02J2007/0039 , H02J2007/004 , Y02E40/10 , Y02E40/34 , Y02E40/74 , Y02E60/722 , Y02E60/726 , Y02E60/74 , Y02E70/30 , Y04S10/14 , Y04S10/22 , Y04S10/24 , Y04S10/30
Abstract: Embodiments disclosed herein relate to a battery energy storage system (BESS) that can be used to store energy that is produced by conventional sources (e.g., coal, gas, nuclear) as well as renewable sources (e.g., wind, solar), and provide the stored energy on-demand.
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公开(公告)号：US20160091537A1
公开(公告)日：2016-03-31
申请号：US14892715
申请日：2014-05-26
Applicant: ABLY AS
Inventor： Paal Even Gaarder
CPC classification number: G01R21/00 , G01R19/2513 , G01R25/00 , G01R31/40 , H02J3/008 , H02J3/01 , H02J3/16 , H02J3/18 , H02J13/0006 , H02J13/0062 , H04Q9/00 , H04Q2209/60 , Y02E40/34 , Y02E40/40 , Y02E40/74 , Y02E60/726 , Y02E60/74 , Y02E60/7838 , Y04S10/22 , Y04S10/24 , Y04S10/30 , Y04S40/124 , Y04S50/10
Abstract: A system and method for measurement of one or more parameters of a power grid (10) is disclosed. This comprises determining a plurality of events in at least one power waveform on the power grid using at least two sensors (30, 50) and recording timings of the plurality of events in at least two different locations in the power grid. The data gathered is used to determine differences between the timings recorded in the at least two locations. A processing unit (40) is used to analyse the differences of the timings to determine the one or more parameters. These parameters include power flow, short circuits, and breaks in the power grid (10).
Abstract translation: 公开了一种用于测量电网（10）的一个或多个参数的系统和方法。 这包括使用至少两个传感器（30,50）在电网中的至少一个功率波形中确定多个事件，并且在电网中的至少两个不同位置记录多个事件的定时。 收集的数据用于确定在至少两个位置记录的定时之间的差异。 处理单元（40）用于分析定时的差异以确定一个或多个参数。 这些参数包括功率流，短路和电网断路（10）。
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公开(公告)号：US09209710B2
公开(公告)日：2015-12-08
申请号：US14446319
申请日：2014-07-29
Applicant: Enecsys Limited
Inventor： Paul Garrity , Aaron Michael Jungreis
IPC: H02M5/45 , H02M7/5387 , H02J3/38 , H02J3/50 , H02M1/10 , H02J3/16 , H02J3/48 , H02M7/48 , H02M7/493 , H02J3/18 , H02J13/00 , H02M1/42 , H02M1/00
CPC classification number: H02J3/383 , H02J1/10 , H02J3/16 , H02J3/18 , H02J3/38 , H02J3/48 , H02J3/50 , H02J13/0075 , H02M1/10 , H02M1/4208 , H02M1/4225 , H02M5/458 , H02M7/48 , H02M7/493 , H02M7/53871 , H02M2001/007 , Y02B70/126 , Y02E10/563 , Y02E40/34 , Y02E40/72 , Y02E60/726 , Y04S10/12 , Y04S10/123 , Y04S10/24 , Y10T307/707
Abstract: We describe a modular adjustable power factor renewable energy inverter system. The system comprises a plurality of inverter modules having a switched capacitor across its ac power output, a power measurement system coupled to a communication interface, and a power factor controller to control switching of the capacitor. A system controller receives power data from each inverter module, sums the net level of ac power from each inverter, determines a number of said capacitors to switch based on the sum, and sends control data to an appropriate number of the inverter modules to switch the determined number of capacitors into/out of said parallel connection across their respective ac power outputs.
Abstract translation: 我们描述了模块化可调功率因数可再生能源逆变系统。 该系统包括多个逆变器模块，其跨越其交流功率输出具有开关电容器，耦合到通信接口的功率测量系统以及用于控制电容器开关的功率因数控制器。 系统控制器从每个逆变器模块接收功率数据，将来自每个逆变器的交流功率的净电平加起来，根据总和确定要切换的所述电容器的数量，并将控制数据发送到适当数量的逆变器模块以切换 确定数量的电容器进入/离开所述并联连接跨越它们各自的交流电力输出。
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