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1.发明申请
公开(公告)号：WO2020244769A1
公开(公告)日：2020-12-10
申请号：PCT/EP2019/064887
申请日：2019-06-06
Applicant: ABB SCHWEIZ AG
Inventor： RUNGGER, Matthias , AL-HOKAYEM, Peter , STREIFF, Fabian
Abstract: A synchronous machine (12) comprises a stator (22) with stator windings (18) connected with stator terminals (20) to an electrical grid (16) and a rotor (24) with rotor windings (26) rotatable mounted in the stator (22), wherein a voltage regulator (14) of the synchronous machine (12) is adapted for outputting an excitation signal ( u ) to adjust a current in the rotor windings (26) for controlling the synchronous machine (12). A method for determining control parameters (54) for the voltage regulator (14) comprises: receiving a first time series of values of the excitation signal ( u ) and a second time series of measurement values of a terminal voltage ( y ) in the stator terminals (20), wherein the first time series and the second time series are acquired over a time interval; determining coefficients (52) of a system transfer function ( G(s) ) of the synchronous machine (12), wherein the system transfer function (G(s j) is a rational function, wherein the coefficients (52) of the system transfer function ( G(s) ) are determined recursively with a regression analysis with instrumental variables based on the first time series as system input and the second time series as system output; and determining the control parameters (54) for the voltage regulator (14) from the coefficients (52) of the system transfer function ( G(s) ) by comparing a closed loop transfer function formed of a controller transfer function ( C(s) ) of the voltage regulator (14) and the system transfer function ( G(s) ) with a desired closed loop transfer function.
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2.发明公开
公开(公告)号：EP3981067A1
公开(公告)日：2022-04-13
申请号：EP19730137.7
申请日：2019-06-06
Applicant: ABB SCHWEIZ AG
Inventor： RUNGGER, Matthias , AL-HOKAYEM, Peter , STREIFF, Fabian , KNAZKINS, Valerijs
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