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    COORDINATED CONTROL METHOD OF GENERATOR AND SVC FOR IMPROVING POWER THROUGHPUT AND CONTROLLER THEREOF
    111.
    发明申请
    COORDINATED CONTROL METHOD OF GENERATOR AND SVC FOR IMPROVING POWER THROUGHPUT AND CONTROLLER THEREOF 有权
    发电机和SVC的协调控制方法，用于改进电力通过和控制器

    公开(公告)号：US20140379152A1

    公开(公告)日：2014-12-25

    申请号：US14374559

    申请日：2012-12-20

    Applicant: ABB TECHNOLOGY LTD.

    Inventor： Yao Chen ,  Guoju Zhang ,  Charles Sao

    IPC: G05B15/02 ,  H02P9/14 ,  H02J3/18

    CPC classification number: H02J3/1821 ,  G05B15/02 ,  G05F1/70 ,  H02J3/18 ,  H02J3/1814 ,  H02P9/14 ,  H02P9/30 ,  Y02E40/12 ,  Y02E40/18

    Abstract: The present invention provides coordinated control methods of generator and SVC for improving power plant active power throughput and controller thereof. The method comprises: measuring the required input parameters for the generator and SVC control; judging the system topology and the control mode of SVC to determine the operation mode; and calculating the control reference based on the operation mode to control the generator and/or SVC. The proposed methods and coordinated controllers enable the SVC to share the required reactive power output of the power plant, convert the generator into “unity-power-factor-generator”, and therefore extend the active power output capability of the power plant.

    Abstract translation: 本发明提供发电机和SVC的协调控制方法，用于提高发电厂有功功率的吞吐量及其控制器。 该方法包括：测量发电机和SVC控制所需的输入参数; 判断系统拓扑和SVC的控制方式，确定运行模式; 以及基于所述操作模式来计算所述控制参考以控制所述发电机和/或SVC。 所提出的方法和协调控制器使SVC能够共享发电厂所需的无功功率输出，将发电机转换为“单位功率因数发电机”，从而延长发电厂的有功功率输出能力。

    DEVICE FOR ELECTRIC FIELD CONTROL
    112.
    发明申请
    DEVICE FOR ELECTRIC FIELD CONTROL 审中-公开
    电场控制装置

    公开(公告)号：US20130153267A1

    公开(公告)日：2013-06-20

    申请号：US13757042

    申请日：2013-02-01

    Applicant: ABB Technology Ltd.

    Inventor： Radim LICHY

    IPC: H02G15/08 ,  H05K1/02

    CPC classification number: H02G15/08 ,  H02G15/068 ,  H02G15/103 ,  H02G15/184 ,  H05K1/02 ,  Y10T29/49071 ,  Y10T29/49073 ,  Y10T29/49096 ,  Y10T29/49117

    Abstract: A device for controlling an electric field at a high voltage component including a resistive layer for field control, an insulating layer arranged on the resistive layer and a semi-conducting or conducting layer arranged on the insulating layer. The three layers meet at a triple point where the insulating layer ends. An interface between the resistive layer and the insulating layer makes in the triple point an angle to the semi-conducting or conducting layer of 60°-120°.

    Abstract translation: 一种用于控制包括用于场控制的电阻层的高电压分量的电场的装置，布置在电阻层上的绝缘层和布置在绝缘层上的半导体或导电层。 三层在绝缘层结束的三点相遇。 电阻层和绝缘层之间的界面使得三重点与60°-120°的半导体或导电层成一定角度。

    Ultracap-based solutions for ride-through of synchronous machine drives
    113.
    发明授权
    Ultracap-based solutions for ride-through of synchronous machine drives 有权

    公开(公告)号：US10374543B2

    公开(公告)日：2019-08-06

    申请号：US14839970

    申请日：2015-08-29

    Applicant: ABB Technology Ltd.

    Inventor： Jun Li ,  Zhiguo Pan ,  Wen Ouyang ,  Ora Veli-Matti Leppänen ,  Darren Tremelling

    IPC: H02P6/32 ,  H02P29/024 ,  H02J7/00 ,  H02P9/10 ,  H02J7/34

    Abstract: A synchronous machine system comprising a synchronous motor including a stator, stator winding, rotor, and field winding; an AC power supply circuit structured to transmit current to or from the stator winding of the synchronous motor at a controlled frequency and transmit current to or from a power source at a controlled frequency; a DC exciter unit structured to receive power from a power source, convert the received power to DC power at a desired voltage, and supply the converted power across a DC bus to the field winding of the synchronous motor; and an energy storage circuit coupled to the DC bus of the DC exciter unit having at least one ultracapacitor, and structured to receive power from a power source, to charge the ultracapacitor, and to provide power to the field winding of the synchronous motor following a power failure.

    Electrical system with arc fault detection
    114.
    发明授权
    Electrical system with arc fault detection 有权

    公开(公告)号：US10078105B2

    公开(公告)日：2018-09-18

    申请号：US14862716

    申请日：2015-09-23

    Applicant: ABB Technology Ltd.

    Inventor： Patrick Erik Schneider ,  Jing Xu

    IPC: G01R31/26 ,  G01R31/02 ,  H03H11/12 ,  G01R19/165 ,  H02S50/10

    CPC classification number: G01R31/024 ,  G01R19/165 ,  G01R19/16538 ,  G01R31/1272 ,  G01R31/14 ,  G01R31/40 ,  H02S50/10 ,  H03H11/1217 ,  H03H11/1286

    Abstract: A unique electrical system includes a first electrical component and a second electrical component. A conductor electrically couples the first electrical component with the second electrical component. A sensor is constructed to sense an AC power flow in the conductor and output an AC signal proportional to the AC power flow. A band-pass filter is in electrical communication with the sensor and constructed to receive and filter the AC signal and to generate an AC voltage proportional on the AC signal. A controller is in electrical communication with the band-pass filter, and is operative to receive and sample the AC voltage. The controller is configured to execute program instructions to sum sequential AC voltage values received from the band-pass filter over a sample time period, and to determine whether an arc fault has occurred based on the summed AC voltage values.

    Participation factor based method for resynchronization of microgrids
    115.
    发明授权
    Participation factor based method for resynchronization of microgrids 有权

    公开(公告)号：US10044192B2

    公开(公告)日：2018-08-07

    申请号：US15017346

    申请日：2016-02-05

    Applicant: ABB Technology Ltd.

    Inventor： Ravindra Singh ,  Dmitry Ishchenko

    IPC: H02J1/10 ,  H02J3/38

    Abstract: A microgrid is re-synchronized to a main grid or substation by determining a degree of bus angle or frequency mismatch and bus voltage mismatch between the microgrid and the main grid or substation prior to re-synchronization, determining an amount of power adjustment needed to reduce the bus angle or frequency mismatch and bus voltage mismatch to below respective predetermined thresholds, determining at least one participation factor for each microgrid bus, each participation factor indicating an amount of influence power injection by the corresponding bus has on the bus angle or frequency mismatch or on the voltage mismatch, allocating the amount of power adjustment to the microgrid buses in proportion to the participation factors assigned to the buses, and re-synchronizing the microgrid to the main grid or substation responsive to the bus angle or frequency mismatch and bus voltage mismatch satisfying the respective predetermined thresholds.

    RESONANT CONVERTERS INCLUDING FLYING CAPACITORS
    116.
    发明申请
    RESONANT CONVERTERS INCLUDING FLYING CAPACITORS 有权

    公开(公告)号：US20170338748A1

    公开(公告)日：2017-11-23

    申请号：US15159227

    申请日：2016-05-19

    Applicant: ABB Technology Ltd.

    Inventor： Jiaqi Liang ,  Harish Suryanarayana ,  Jukka-Pekka Kittila

    IPC: H02M7/537 ,  H02M3/335

    CPC classification number: H02M7/537 ,  H02M3/33569 ,  H02M7/483 ,  H02M2001/0058 ,  H02M2007/4815 ,  Y02B70/1441 ,  Y02B70/1491

    Abstract: Unique systems, methods, techniques and apparatuses of zero-voltage transition pulse width modulation resonant converters are disclosed. One exemplary embodiment is a zero-voltage transition PWM resonant converter comprising a DC bus, a first switching device, a second switching device, a resonant tank circuit, an auxiliary circuit having a flying capacitor and a plurality of auxiliary switching devices, and a controller. The controller is structured to control the first switching device, the second switching device, and the plurality of auxiliary switching devices to provide resonant operation of the tank circuit effective to provide a substantially zero voltage condition across the first switching device when turning the first switching device on or off and to provide a substantially zero voltage condition across the second switching device when turning the second switching device on or off.

    Technologies for zonal fault protection of DC distribution systems
    118.
    发明授权
    Technologies for zonal fault protection of DC distribution systems 有权

    公开(公告)号：US09762047B2

    公开(公告)日：2017-09-12

    申请号：US14741412

    申请日：2015-06-16

    Applicant: ABB Technology Ltd.

    Inventor： Jiuping Pan ,  Li Qi ,  Xianyong Feng

    IPC: H02H3/00 ,  H02H3/08 ,  H02H7/26 ,  H02H3/04 ,  H02H3/20 ,  G01R31/08

    CPC classification number: H02H3/08 ,  G01R31/08 ,  H02H3/042 ,  H02H3/20 ,  H02H7/261 ,  H02H7/262 ,  H02H7/268

    Abstract: Technologies for detecting a fault location in a DC electrical distribution system include a bus protection unit that monitors a DC electrical bus. The bus protection unit includes at least one sensor to produce sensor data indicative of one or more characteristics of the DC electrical bus monitored by the bus protection unit. The bus protection unit monitors the sensor data, determines whether a fault has occurred based on the sensor data, and determines whether the fault occurred within a bus zone defined by the DC electrical bus in response to determining that the fault has occurred. Further, the bus detection unit trips isolation devices within the bus zone in response to a determination that the fault occurred within the bus zone or a communication from another bus protection unit indicating the fault has occurred within the bus zone. The bus protection unit transmits a bus fault indication signal to another bus protection unit in response to a determination that the fault has occurred.

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