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    CAPACITIVE CONTROL OF ALTERNATOR REGULATION
    41.
    发明申请
    CAPACITIVE CONTROL OF ALTERNATOR REGULATION 失效
    替代器调节的电容控制

    公开(公告)号：US20030222459A1

    公开(公告)日：2003-12-04

    申请号：US10248943

    申请日：2003-03-04

    Inventor： Martyn Harris ,  Matthew James Reed

    IPC: B61C009/38 ,  B60L011/02 ,  F02N011/04

    CPC classification number: H02P9/10 ,  H02J3/16 ,  H02J3/1807 ,  H02M5/40 ,  H02M5/45 ,  H02M7/066 ,  Y02E40/32 ,  Y02E40/34

    Abstract: The invention provides an electrical generating system comprising an AC electrical generator (G) having an output, and a capacitor arrangement (Ca) provided at the output of the generator and arranged so as to offset a drop of voltage from no-load to full-load occurring at the output of the generator. As described, the generator (G) is a permanent-magnet generator having a plurality of terminals and associated output lines, and the capacitor arrangement comprises a respective capacitor (Ca) connected in series in each of the output lines, with the value of the capacitance of each capacitor being selected such that a drop of voltage from no-load to full-load occurring at the associated generator terminal is substantially offset at an output terminal of each said capacitor.

    Abstract translation: 本发明提供了一种发电系统，其包括具有输出的AC发电机（G）和设置在发电机的输出端的电容器布置（Ca），并被布置成将空载电压从空载偏移到全速， 负载发生在发电机的输出端。 如上所述，发电机（G）是具有多个端子和相关联的输出线的永磁发电机，并且电容器装置包括在每个输出线中串联连接的相应的电容器（Ca），其值 每个电容器的电容被选择为使得在相关联的发电机端子处发生的从空载到全负载的电压的下降在每个所述电容器的输出端处基本上偏移。

    Wind power generation system and power conversion apparatus
    43.
    发明授权
    Wind power generation system and power conversion apparatus 有权

    公开(公告)号：US11764585B2

    公开(公告)日：2023-09-19

    申请号：US16976629

    申请日：2018-10-29

    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

    Inventor： Hiroyoshi Komatsu

    IPC: H02J3/38 ,  H02J3/46 ,  H02J9/06 ,  H02M5/40

    CPC classification number: H02J3/472 ,  H02J9/062 ,  H02M5/40 ,  H02J2300/28

    Abstract: A wind power generation system includes a power generator body, an auxiliary device that assists the power generator body, and a power conversion apparatus that converts first AC power generated by the power generator body to second AC power, and outputs the second AC power to an electric power grid. The power conversion apparatus includes a first power conversion circuit, a second power conversion circuit, a power storage element that receives DC power from the first power conversion circuit via a first passing point, a breaker, and a control unit. When the power generator body is in a power generation standby state, the control unit sets a parallel-off mode and controls the second power conversion circuit to convert power of the power storage element to third AC power having a preset voltage. The auxiliary device is configured to receive the second AC power or the third AC power.

    Systems and methods for balancing UPS output voltages during transitions between operating modes
    47.
    发明授权
    Systems and methods for balancing UPS output voltages during transitions between operating modes 有权
    在工作模式之间过渡期间平衡UPS输出电压的系统和方法

    公开(公告)号：US09531288B2

    公开(公告)日：2016-12-27

    申请号：US14078884

    申请日：2013-11-13

    Applicant: Liebert Corporation

    Inventor： Terry D. Bush ,  Brian P. Heber ,  Russell E. Shetler, Jr.

    IPC: H02M5/40 ,  H02J3/24

    CPC classification number: H02M5/40 ,  H02J3/24 ,  H02J9/062 ,  Y10T307/406

    Abstract: A UPS includes an input that receives first power from a utility source to power a load and receives second power from the utility source. The load is separate from the UPS. An inverter receives when in a first mode, the first and second power and when in a second mode, the second power and not the first power. The second power is used to power the inverter. A bypass circuit is connected to the input and bypasses the inverter to supply the first power to an output of the UPS when operating in the second mode. A control module detects a voltage at the output of the UPS, integrates the voltage to generate a first sum, and subsequent to completing a transition between the first and second modes, adjusts an output voltage of the inverter based on the first sum to balance the voltage of the UPS.

    Abstract translation: UPS包括一个输入端，该输入端接收来自公用电源的第一电力来为负载提供电力并从该电力源接收第二电力。 负载与UPS分开。 逆变器在第一模式下接收第一和第二功率，并且当处于第二模式时，第二功率而不是第一功率。 第二个电源用于为变频器供电。 旁路电路连接到输入端，并且旁路逆变器以在第二模式下工作时向UPS的输出端提供第一电力。 控制模块检测UPS的输出端的电压，积分电压以产生第一和，并且在完成第一和第二模式之间的转换之后，根据第一和调整逆变器的输出电压，以平衡 UPS的电压。

    HVDC SYSTEM AND METHOD TO CONTROL A VOLTAGE SOURCE CONVERTER IN A HVDC SYSTEM
    49.
    发明申请
    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：US20130301313A1

    公开(公告)日：2013-11-14

    申请号：US13947761

    申请日：2013-07-22

    Applicant: ABB TECHNOLOGY AG

    Inventor： Ying JIANG-HÄFNER

    IPC: H02M5/40

    CPC classification number: H02M5/40 ,  H02J3/36 ,  H02M7/797 ,  Y02E60/60

    Abstract: A method to control a voltage source converter (CON1; CON2) in a HVDC system comprises the step of controlling a frequency and a voltage amplitude of an AC voltage (UV1; UV2) generated by the voltage source converter (CON1; CON2) independently of the conditions in an AC network (N1; N2) connected to the voltage source converter (CON1; CON2). This method is performed by a control unit of a HVDC system. In a special embodiment, the method forms the basis of a method to black start an AC network, where the AC network comprises transmission lines and is connected to at least two AC power stations, where one of the at least two AC power stations is connected via a HVDC system to the AC network.

    Abstract translation: 一种用于控制HVDC系统中的电压源转换器（CON1; CON2）的方法包括以下步骤：独立地控制由电压源转换器（CON1; CON2）产生的AC电压（UV1; UV2）的频率和电压幅度 连接到电压源转换器（CON1; CON2）的AC网络（N1; N2）中的条件。 该方法由HVDC系统的控制单元执行。 在一个特殊的实施例中，该方法形成了黑色启动AC网络的方法的基础，其中AC网络包括传输线并且连接到至少两个AC电力站，其中至少两个AC电力站中的一个被连接 通过HVDC系统到AC网络。

    METHOD AND APPARATUS FOR TESTING IN FIELD WIND TURBINES
    50.
    发明申请
    METHOD AND APPARATUS FOR TESTING IN FIELD WIND TURBINES 审中-公开
    用于测试风力涡轮机的方法和装置

    公开(公告)号：US20130169289A1

    公开(公告)日：2013-07-04

    申请号：US13728513

    申请日：2012-12-27

    Applicant: Gamesa Innovation & Technology, S.L.

    Inventor： Miguel LINARES FANO ,  Miguel RODRIGUEZ VAZQUEZ ,  Juan Alberto MARRERO SOSA

    IPC: H02M5/40 ,  G01R31/34

    CPC classification number: H02M5/40 ,  G01R31/34 ,  G01R31/343 ,  G01R31/42 ,  Y02E10/76

    Abstract: A method for testing in field a wind turbine. The wind turbine being configured for providing power at a given rated voltage and at a rated frequency of 50 or 60 Hz; the method comprising connecting the wind turbine to an electric grid of a given rated voltage and of a rated frequency of 50 or 60 Hz through a conversion device that allows the adaptation of the features of the electric grid at the wind turbine side of said conversion device to the conditions requested by the tests to be performed to the wind turbine; that adaptation including the adaptation of the rated frequency of the electric grid to the rated frequency of the wind turbine, when they are different, so that identical tests to wind turbines configured for different rated frequencies can be performed in the same site.

    Abstract translation: 一种用于现场测试风力涡轮机的方法。 风力涡轮机被配置为在给定的额定电压和额定频率为50或60Hz的条件下提供功率; 所述方法包括通过转换装置将风力涡轮机连接到给定额定电压和额定频率为50或60Hz的电网，所述转换装置允许在所述转换装置的风力涡轮机侧适应电网的特征 符合要对风力发电机组执行的试验要求的条件; 这种适应包括将电网的额定频率适应于风力涡轮机的额定频率，当它们不同时，使得可以在同一地点执行为不同额定频率配置的风力涡轮机的相同测试。

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