Electronic charger for electric power distribution installations and a control method thereof

    公开(公告)号:US10574083B2

    公开(公告)日:2020-02-25

    申请号:US15566988

    申请日:2016-03-04

    Applicant: ABB Schweiz AG

    Abstract: An electronic charger for electric power distribution installations is provided. The electronic charger includes a DC/DC converter of the SEPIC type including an input stage, an output stage and a coupling capacitor. The input stage is electrically connected with input terminals and includes an input inductor and a switching device. The output stage is electrically connected with output terminals and includes an output inductor, an output capacitor and a blocking device. The coupling capacitor is configured to electrically couple the input stage and the output stage with a capacitive coupling. A first sensor provides a first sensing signal indicative of a charging current. A first controller receives the first sensing signal and a reference signal and provides a driving signal to control the switching device.

    Method for Device Monitoring
    2.
    发明申请

    公开(公告)号:US20220114519A1

    公开(公告)日:2022-04-14

    申请号:US17560921

    申请日:2021-12-23

    Applicant: ABB Schweiz AG

    Abstract: A method for device monitoring includes: providing a plurality of fleet measurement data for at least one device, where the plurality of fleet measurement data includes a number of fleet device data measurements “Nfleet;” providing a plurality of device measurement data for a monitored device, where the plurality of device measurement data includes a number of monitor device data measurements “Ndata;” determining a fleet distribution “Fdist” determined as a distribution of differences between consecutive measurements of the plurality of fleet measurement data; determining a device distribution “Ddist” determined as a distribution of differences between consecutive measurements of the device measurement data; determining an effective number of data measurements “Neff” and determining a probability of failure of the monitored device, the determining including utilising the fleet distribution “Fdist,” the device distribution “Ddist,” the number of monitor device data measurements “Ndata,” and the effective number of data measurements “Neff.”

    A SUBSEA ELECTRIC POWER DISTRIBUTION INSTALLATION

    公开(公告)号:US20190319457A1

    公开(公告)日:2019-10-17

    申请号:US16313509

    申请日:2017-05-16

    Applicant: ABB Schweiz AG

    Abstract: A subsea electric power distribution installation (1) comprising: —one or more MV switching apparatuses (70) electrically connected with an electric power source (50) and one or more electric loads (60), said switching apparatuses being adapted to switch a MV electric power supply (V0) to said electric loads; —electronic equipment (11, 12) operatively associated with said switching apparatuses for managing the operation of said switching apparatuses, said electronic equipment being configured to receive a LV electric power supply. The subsea electric power distribution installation comprises a centralized energy storage unit (20) including one or more storing devices (25) for storing electric energy to feed said electronic equipment (11, 12), wherein said centralized energy storage unit is adapted to receive electric power from said electric power source to charge said storing devices, wherein said centralized energy storage unit is adapted to provide an electric power supply to said electronic equipment by absorbing electric power from said storing devices.

    UPS device for electric power distribution installations

    公开(公告)号:US11652358B2

    公开(公告)日:2023-05-16

    申请号:US16717202

    申请日:2019-12-17

    Applicant: ABB Schweiz AG

    Abstract: An UPS device for electric power distribution installations, the UPS device including: first electric terminals for electrical connection with an electric load to be fed by the UPS device; second electric terminals for electrical connection with a power supply source adapted to feed the UPS device; third electric terminals for electrical connection with a back-up unit adapted to feed the UPS device, when the power supply source is not available, the back-up unit having one or more replaceable batteries; a power conversion stage electrically connectable with the first, second and third electric terminals, the power conversion stage being adapted to receive a power supply voltage from the power supply source or a back-up voltage from the back-up unit, when the power supply source is not available, and being adapted to provide an adjustable load voltage to the electric load; and an interface stage to electrically couple or decouple the back-up unit with or from the power conversion stage. The interface stage includes a feeding circuit to temporary feed the controller during a transient time interval following a replacement of the batteries of the back-unit.

    Coil actuator for low and medium voltage applications

    公开(公告)号:US11270825B2

    公开(公告)日:2022-03-08

    申请号:US16559830

    申请日:2019-09-04

    Applicant: ABB Schweiz AG

    Abstract: A coil actuator for low and medium voltage applications comprising a coil electromagnet provided with a single coil winding and a movable anchor and a power and control unit comprising: a power circuit operatively coupled with said coil electromagnet, said power circuit comprising input terminals, at which said power circuit receives an input voltage; a PWM controller operatively coupled with said power circuit, said PWM controller being adapted to control an input current flowing through said power circuit to obtain and maintain an average operating level selected an excitation current feeding said coil electromagnet. Said PWM controller is adapted to set a plurality of reference values for said input current to control said input current, each reference value for said input current being selected among said plurality of reference values depending on the behavior of said input voltage.

    COIL ACTUATOR FOR LOW AND MEDIUM VOLTAGE APPLICATIONS

    公开(公告)号:US20200075212A1

    公开(公告)日:2020-03-05

    申请号:US16559830

    申请日:2019-09-04

    Applicant: ABB Schweiz AG

    Abstract: A coil actuator for low and medium voltage applications including a coil electromagnet with a single coil winding and a movable anchor and a power and control unit including: a power circuit operatively coupled with the coil electromagnet, the power circuit including input terminals, at which the power circuit receives an input voltage; a PWM controller operatively coupled with the power circuit, the PWM controller being adapted to control an input current flowing through the power circuit to obtain and maintain an average operating level selected an excitation current feeding the coil electromagnet. The PWM controller is adapted to set a plurality of reference values for the input current to control the input current, each reference value for the input current selected among the plurality of reference values depending on the behavior of the input voltage.

    Coil actuator for low and medium voltage applications

    公开(公告)号:US11289256B2

    公开(公告)日:2022-03-29

    申请号:US16585135

    申请日:2019-09-27

    Applicant: ABB Schweiz AG

    Abstract: A coil actuator for low and medium voltage applications including: a coil electromagnet having a single coil winding and a movable member; and a power and control unit including: a power circuit operatively coupled with the coil electromagnet, the power circuit including input terminals for receiving an input voltage and an intermediate node, the electromagnet being electrically connected with the input terminal and the intermediate node, the power circuit further including a discharge circuit, which is electrically connected with the first input terminal and the intermediate node in parallel with the coil winding, and a switch circuit, which is electrically connected with the intermediate node and the second input terminal, the switch circuit including at least a power switch; a controller operatively coupled with the power circuit to drive the at least a power switch to control of an input current circulating through the power circuit, the controller being adapted to perform a PWM control of the input current to operate the coil electromagnet; a power supply circuit adapted to feed the controller. The power supply circuit is electrically connected with the intermediate node and the controller.

    Method for determining the operating status of a MV switching apparatus of the electromagnetic type

    公开(公告)号:US10788535B2

    公开(公告)日:2020-09-29

    申请号:US15542627

    申请日:2015-12-28

    Applicant: ABB Schweiz AG

    Abstract: A method is provided for determining the operating status a MV switching apparatus. The method includes providing a test signal to the test winding for an observation period of time, the test signal having a waveform capable of exciting the magnetic element; obtaining first measuring data indicative of a voltage at first terminals of the capacitor bank during the observation period of time; obtaining second measuring data indicative of a voltage at second terminals of the test winding and indicative of a current circulating along the test winding during the observation period of time; and, calculating estimation data indicative of the operating status of the capacitor bank at the end of the observation period of time on the basis of the first and second measuring data, the first estimation data comprising a first estimation value indicative of the capacitance of the capacitor bank.

    A METHOD FOR DETERMINING THE OPERATING STATUS OF A MV SWITCHING APPARATUS OF THE ELECTROMAGNETIC TYPE

    公开(公告)号:US20180267103A1

    公开(公告)日:2018-09-20

    申请号:US15542627

    申请日:2015-12-28

    Applicant: ABB Schweiz AG

    Abstract: A method for determining the operating status a MV switching apparatus, which comprises: one or more electric poles, each comprising a movable contact and a fixed contact adapted to be coupled or uncoupled during the switching operations of the switching apparatus; an electromagnetic actuator for actuating one or more movable contacts of the electric poles, the electromagnetic actuator having at least a test winding wound around a magnetic element; a capacitor bank for providing electric power to the electromagnetic actuator. The method comprises: providing a test signal (ST) to the test winding for an observation period of time (TO), the test signal having a waveform capable of exciting the magnetic element; obtaining first measuring data (VC) indicative of a voltage at first terminals (T1) of the capacitor bank during the observation period of time; obtaining second measuring data (VL, IL) indicative of a voltage at second terminals (T2) of the test winding and indicative of a current circulating along the test winding during the observation period of time; and, calculating estimation data (Ĉ, ICD, IC) indicative of the operating status of the capacitor bank at the end of the observation period of time on the base of the first and second measuring data, the first estimation data comprising a first estimation value (Ĉ) indicative of the capacitance of the capacitor bank.

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