PARALLEL EXCITATION OF MOTOR START FUNCTION FOR THREE STAGE SYNCHRONOUS GENERATOR

    公开(公告)号:EP4195493A1

    公开(公告)日:2023-06-14

    申请号:EP22210019.0

    申请日:2022-11-28

    IPC分类号: H02P9/30

    摘要: Systems (300) for parallel excitation for a synchronous machine are provided. Aspects include a rectification circuit (308) coupled to an output of a permanent magnet generator (304), and an excitation winding (312) connected to an output of the rectification circuit (308), a direct current (DC) power source (380) connected between an output of the rectification circuit (308) and the excitation winding (312), wherein the excitation winding (312) supplies an excitation voltage to an excitation armature (316) in a main generator (302) during a during a plurality of operational modes, wherein the plurality of operational modes comprise a startup mode and a generator mode, wherein a DC excitation voltage is provided to the excitation windings (312) by the DC power source (380) during the startup mode, and wherein the DC excitation voltage is provided to the excitation windings (312) by the rectification circuit (308) during the generator mode.

    METHOD FOR OPERATING MULTI-PHASE GENERATOR, AND ARRANGEMENT FOR MULTI-PHASE GENERATOR

    公开(公告)号:EP3890181A1

    公开(公告)日:2021-10-06

    申请号:EP20167939.6

    申请日:2020-04-03

    申请人: ABB Schweiz AG

    摘要: A method for operating a multi-phase generator, and An arrangement for a multi-phase generator comprising a stator with a plurality of phases, each of the phases of the stator comprising a phase winding (W) having at least two phase winding circuits (C 1 , C 2 ), the arrangement comprising switching means (S 1 , S 2 , S 3 ) configured to connect, in a first winding configuration, in each of the phases of the stator all of the at least two phase winding circuits(C 1 , C 2 ) of the phase of the stator electrically in parallel with each other, and connect, in a second winding configuration, in each of the phases of the stator at least two of the at least two phase winding circuits of the phase of the stator electrically in series with each other, and control means (100) configured to control the switching means (Si, S 2 , S 3 ) from the first winding configuration to the second winding configuration in response to a detected predetermined fault condition.