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公开(公告)号：US20240014649A1
公开(公告)日：2024-01-11
申请号：US18474935
申请日：2023-09-26
Applicant: NEWORLD.ENERGY LLC
Inventor： Paul W. Donahue , Ryan Paul Donahue , Jeffrey Alan Dankworth
IPC: H02J3/00 , H02J9/06 , H02J13/00 , G01R19/165 , B60L53/53 , G05B19/042 , H02J3/32 , H02J3/38 , H02J4/00 , H02M5/40
CPC classification number: H02J3/001 , H02J9/06 , H02J13/00002 , G01R19/16547 , B60L53/53 , H02J13/00006 , G05B19/042 , H02J3/32 , H02J3/381 , H02J4/00 , H02M5/40 , H02J2300/28 , H02J13/00036 , H02J2300/24 , G05B2219/2639
Abstract: A micro grid system comprises a secondary energy source and a power controller. The secondary energy source is associated with a micro grid that includes a fixed or mobile facility, and the secondary energy source is configured to generate first DC power signal. The power controller is in communication with the secondary energy source and an electric grid, and configured to receive first AC power signal from the electric grid and the first DC power signal from the secondary energy source and output a second AC power signal to loads in communication with the power controller. The power controller comprises an AC to DC frequency converter configured to change frequency and/or voltage of the second AC power signal, a processor, and a memory configured to store instructions that, when executed, cause the processor to control the frequency converter to change the frequency and/or voltage of the second AC power signal.
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公开(公告)号：US20230179014A1
公开(公告)日：2023-06-08
申请号：US18056216
申请日：2022-11-16
Applicant: SANTAK ELECTRONIC (SHENZHEN) CO., LTD.
Inventor： YULONG HAO , YUE YANG , DAWEI ZHENG
CPC classification number: H02J9/068 , H02J7/0031 , H02J7/0063 , H02J7/342 , H02J9/062 , H02M5/40
Abstract: The present invention provides an uninterruptible power supply with bypass power sharing function, including: an input end, configured to be connected to mains; an output end, configured to be connected to a load; a current sensor, disposed at the output end and configured to sense an output current of the uninterruptible power supply; a bypass branch, disposed between the input end and the output end; and an inverter branch, including a rectifier, an inverter and an energy storage battery, wherein one end of the rectifier is connected to the input end, and the other end is connected to one end of the inverter; the other end of the inverter is connected to the output end; and the energy storage battery is connected to a node between the rectifier and the inverter, wherein the uninterruptible power supply is set to be capable of working in a mains mode; and in the mains mode, the inverter branch is controlled with a current loop, so that the bypass branch and the inverter branch together provide the output current of the uninterruptible power supply.
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公开(公告)号：US20180254624A1
公开(公告)日：2018-09-06
申请号：US15660224
申请日：2017-07-26
Applicant: LSIS CO., LTD.
Inventor： Ju-Beom SON
Abstract: An apparatus for detecting a fault in a power relay of an inverter is disclosed. The apparatus for detecting a fault in a power relay includes: a voltage sensor configured to measure a voltage of a DC link; a current sensor configured to measure an output current applied to an inverter stage; a storage unit configured to store resistance of an initial charge resistor, a time constant of a capacitor, and a reference voltage measured when voltage drop of the DC link does not occur; and a controller configured to determine, when the voltage drop of the DC link occurs, the presence or absence of a fault in the power relay based on a difference between the reference voltage and a voltage measured after lapse of a period corresponding to the time constant.
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公开(公告)号：US20170354067A1
公开(公告)日：2017-12-07
申请号：US15535166
申请日：2015-12-10
Applicant: AECOM AUSTRALIA PTY LTD
Inventor： Murray Dickinson
CPC classification number: H02J3/46 , G06F1/3287 , H02J1/12 , H02J3/14 , H02J7/00 , H02J9/06 , H02M5/40 , H05K7/20836 , Y02B10/72 , Y02E10/50 , Y02E10/70
Abstract: A power system (1), typically for use in a data centre, which eliminates use of a changeover device when switching between power sources. The power system (1) includes first and second rectifiers (5, 6), each of which is connected to a respective AC power source (2, 3), and an energy storage device (1).
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公开(公告)号：US09654019B2
公开(公告)日：2017-05-16
申请号：US15027558
申请日：2014-10-07
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Kenichi Sakakibara
CPC classification number: H02M5/458 , H02M1/08 , H02M1/14 , H02M1/4225 , H02M5/40 , H02M5/44 , H02M5/4585 , H02M2001/0093 , Y02B70/126
Abstract: A converter performs full-wave rectification on a single-phase voltage, thus outputting a rectified voltage across DC power supply lines. An inverter receives the rectified voltage and then supplies a three-phase AC current to an inductive load. Between the DC power supply lines is connected a charge and discharge circuit. The charge and discharge circuit includes a buffer circuit and a boost circuit. The buffer circuit includes a series connection between a capacitor and a switch. The boost circuit, which may be configured by a boost chopper, includes a switch, a reactor and a diode. The charge and discharge circuit provides and receives part of pulsations of the power input to the converter between the DC power supply lines.
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Patent Agency Ranking
26.发明授权Drive train comprising a doubly-fed electric machine and an inverter controlled according to a law limiting the delivered active power 有权传动系包括双馈电机和根据限制传递的有功功率的法律控制的逆变器公开(公告)号：US09356533B2
公开(公告)日：2016-05-31
申请号：US14009547
申请日：2012-04-05
Applicant: Alfred Permuy
Inventor： Alfred Permuy
CPC classification number: H02M5/40 , F05B2220/70646 , H02J3/38 , H02P9/007
Abstract: A drive train comprising an electric machine including a rotor and a stator, the stator being connected to an alternating grid and having a stator frequency, and a bidirectional system for converting an alternating current into another alternating current. The conversion system is connected between the grid and the rotor, and comprises an AC-DC converter connected to the grid, an inverter connected between the AC-DC converter and the rotor, and a device for controlling switches of the inverter according to a control law. The control law is such that the active power exchanged by the inverter with the rotor is essentially always lower than 0.3 times the nominal power of the direct current specifically circulating between the AC-DC converter and the inverter, for the frequencies of a target interval of between 0.6 times the stator frequency and 1.4 times the stator frequency.
Abstract translation: 一种传动系，其包括具有转子和定子的电机，所述定子连接到交变电网并具有定子频率，以及用于将交流电转换成另一交流电的双向系统。 转换系统连接在电网和转子之间，并且包括连接到电网的AC-DC转换器，连接在AC-DC转换器和转子之间的逆变器，以及根据控制器控制逆变器的开关的装置 法。 控制规律是这样的，使用逆变器与转子交换的有功功率基本上总是低于在AC-DC转换器和逆变器之间特别循环的直流电的额定功率的0.3倍， 定子频率的0.6倍和定子频率的1.4倍。
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27.发明申请公开(公告)号：US20140254216A1
公开(公告)日：2014-09-11
申请号：US14352250
申请日：2012-10-10
Applicant: Wobben Properties GmbH
Inventor： Volker Diedrichs , Alfred Beekmann
IPC: H02M5/40
Abstract: The invention relates to a method for feeding electrical current into an electrical, three-phase power supply system having a first phase, a second phase and a third phase with a first voltage, a second voltage and a third voltage at a power supply system frequency, comprising the steps of: measuring the first, second and third voltages, transforming the first, second and third voltages into a positive phase-sequence voltage system and a negative phase-sequence voltage system according to the method of symmetrical components, calculating a first desired current, a second desired current and a third desired current for feeding into the first, second and third phases of the power supply system, wherein the first, second and third desired currents are calculated on the basis of at least one value of the positive phase-sequence voltage system and/or the negative phase-sequence voltage system.
Abstract translation: 本发明涉及一种用于将电流馈送到具有第一相位，第二相位和第三相位的电三相电源系统中的方法，所述第一相位，第二相位和第三相位在电源系统频率处具有第一电压，第二电压和第三电压 包括以下步骤：测量第一，第二和第三电压，根据对称分量的方法将第一，第二和第三电压变换为正相序电压系统和负相序电压系统，计算第一， 期望电流，第二期望电流和用于馈送到电力供应系统的第一，第二和第三相的第三期望电流，其中基于正的至少一个值来计算第一，第二和第三期望电流 相序电压系统和/或负相序电压系统。
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28.发明授权HVDC system and method to control a voltage source converter in a HVDC system 有权HVDC系统和控制HVDC系统中电压源转换器的方法公开(公告)号：US08760888B2
公开(公告)日：2014-06-24
申请号：US12306764
申请日：2007-06-14
Applicant: Ying Jiang-Häfner
Inventor： Ying Jiang-Häfner
Abstract: A method to control a voltage source converter in a HVDC system includes controlling a frequency and a voltage amplitude of an AC voltage generated by the voltage source converter independently of the conditions in an AC network connected to the voltage source converter. The method is performed by a control unit of an HVDC system. The method may form a basis of a method to black start an AC network. The AC network includes transmission lines and is connected to at least two AC power stations. One of the at least two AC power stations is connected via a HVDC system to the AC network.
Abstract translation: 用于控制HVDC系统中的电压源转换器的方法包括控制与电压源转换器产生的AC电压的频率和电压幅度，而不管连接到电压源转换器的AC网络中的条件。 该方法由HVDC系统的控制单元执行。 该方法可以形成黑色启动AC网络的方法的基础。 交流网络包括传输线，并连接至少两个交流发电站。 至少两个交流发电站中的一个经由HVDC系统连接到AC网络。
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29.发明申请DRIVE TRAIN COMPRISING A DOUBLY-FED ELECTRIC MACHINE AND AN INVERTER CONTROLLED ACCORDING TO A LAW LIMITING THE DELIVERED ACTIVE POWER 有权包含双电源电机的驱动器和根据限制交付的有功功率的法律控制的逆变器公开(公告)号：US20140022827A1
公开(公告)日：2014-01-23
申请号：US14009547
申请日：2012-04-05
Applicant: Alfred Permuy
Inventor： Alfred Permuy
IPC: H02M5/40
CPC classification number: H02M5/40 , F05B2220/70646 , H02J3/38 , H02P9/007
Abstract: A drive train comprising an electric machine including a rotor and a stator, the stator being connected to an alternating grid and having a stator frequency, and a bidirectional system for converting an alternating current into another alternating current. The conversion system is connected between the grid and the rotor, and comprises an AC-DC converter connected to the grid, an inverter connected between the AC-DC converter and the rotor, and a device for controlling switches of the inverter according to a control law. The control law is such that the active power exchanged by the inverter with the rotor is essentially always lower than 0.3 times the nominal power of the direct current specifically circulating between the AC-DC converter and the inverter, for the frequencies of a target interval of between 0.6 times the stator frequency and 1.4 times the stator frequency.
Abstract translation: 一种传动系，其包括具有转子和定子的电机，所述定子连接到交变电网并具有定子频率，以及用于将交流电转换成另一交流电的双向系统。 转换系统连接在电网和转子之间，并且包括连接到电网的AC-DC转换器，连接在AC-DC转换器和转子之间的逆变器，以及根据控制器控制逆变器的开关的装置 法。 控制规律是这样的，使用逆变器与转子交换的有功功率基本上总是低于在AC-DC转换器和逆变器之间特别循环的直流电的额定功率的0.3倍， 定子频率的0.6倍和定子频率的1.4倍。
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30.发明授权Communications processor remote host and multiple unit control devices and methods for micropower generation systems 有权通信处理器远程主机和多个单元控制设备和微型发电系统的方法
公开(公告)号：US6055163A
公开(公告)日：2000-04-25
申请号：US140392
申请日：1998-08-26
Applicant: Edward T. Wagner , Thomas C. Matty , Thomas C. Underwood , William B. Hall
Inventor： Edward T. Wagner , Thomas C. Matty , Thomas C. Underwood , William B. Hall
CPC classification number: H02M5/40 , H02J13/0072 , H02J3/38 , Y02E40/72 , Y04S10/12
Abstract: A communications processor is disclosed for a power generation system that permits data and control signals to be communicated to and from the power generation system and a host computer. The control signals include a power level command and power factor that are sent from a remote host to the power generation system which responds by delivering the requested power level having the desired power factor to a grid. The remote host receives performance data that permits an operator to accurately gauge the performance of the power generation system including the performance and any fault conditions of a line power unit, generator, and engine driving the generator. The communications processor unburdens the line power unit controller that is responsible for controlling power generation from the task of processing input data and driving local displays. The host may also be provided at a location remote from the power generation system. The host, local or remote, preferably includes a graphical user interface that permits an operator to monitor and control the power generation system in an efficient and highly effective manner. A dedicated serial bus connects the communications processors of multiple power generation systems. By utilizing a round-robbin polling of each power generation system across the dedicated serial bus, real-time control can be achieved.
Abstract translation: 公开了一种用于发电系统的通信处理器，其允许将数据和控制信号传送到发电系统和主计算机。 控制信号包括从远程主机发送到发电系统的功率电平命令和功率因数，该发电系统通过将具有期望的功率因数的所请求的功率电平递送到电网来进行响应。 远程主机接收性能数据，允许操作者精确地测量发电系统的性能，包括行驶电力单元，发电机和驱动发电机的发动机的性能和任何故障状况。 通信处理器负责从处理输入数据和驱动本地显示器的任务中控制发电的线路电源单元控制器。 主机也可以设置在远离发电系统的位置。 主机，本地或远程，优选地包括图形用户界面，其允许操作者以有效和高效的方式监视和控制发电系统。 专用串行总线连接多个发电系统的通信处理器。 通过利用专用串行总线上的每个发电系统的轮询轮询，可以实现实时控制。
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