公开(公告)号：EP4228143A1

公开(公告)日：2023-08-16

申请号：EP22155947.9

申请日：2022-02-09

Applicant: ABB SCHWEIZ AG

Inventor： DARIVIANAKIS, Georgios ,  GEYER, Tobias ,  MUSZYNSKI, Peter ,  TSOUMAS, Ioannis

IPC: H02M7/5387 ,  H02P23/14

Abstract: A method for controlling an electrical converter (12) for driving an electrical machine (18) comprises the steps of: estimating a stator flux vector ( ψ s ) depending on at least one measurement in the electrical converter (12); determining an optimized pulse pattern (OPP) for the electrical converter (12) depending on a reference angular stator frequency ω S * ; determining a reference stator angle θ S * of the stator flux vector ( ψ s ) depending on the reference angular stator frequency ω S * ; determining a reference stator flux vector ψ S * depending on the optimized pulse pattern (OPP) and the reference stator angle θ S * ; determining a difference between the reference stator flux vector ψ S * and the estimated stator flux vector ( ψ s ) ; modifying switching instants of the optimized pulse pattern (OPP), such that the difference is minimized; and applying at least a part of the modified optimized pulse pattern (OPP) to the electrical converter (12).

公开(公告)号：EP3729637A1

公开(公告)日：2020-10-28

申请号：EP19700121.7

申请日：2019-01-08

Applicant: ABB Schweiz AG

Inventor： GEYER, Tobias ,  SPUDIC, Vedrana ,  GUTSCHER, Christof ,  RUEETSCHI, Andrea

IPC: H02P27/12 ,  H02P21/30 ,  H02P27/14 ,  H02M7/487 ,  H02M7/5395 ,  H02M7/5387

公开(公告)号：EP3326277A1

公开(公告)日：2018-05-30

申请号：EP16751495.9

申请日：2016-07-19

Applicant: ABB Schweiz AG

Inventor： SPUDIC, Vedrana ,  ROHR, Eduardo ,  GEYER, Tobias ,  AL-HOKAYEM, Peter

IPC: H02M1/12 ,  H02M7/539 ,  H02M7/483

CPC classification number: H02M1/12 ,  H02M7/1552 ,  H02M7/487 ,  H02M7/539 ,  H02M2007/4835

Abstract: A method for controlling a three-phase electrical converter comprises: selecting a three-phase optimized pulse pattern from a table of pre-computed optimized pulse patterns based on a reference flux; determining a two-component optimal flux from the optimized pulse pattern and determine a one-component optimal third variable; determining a two-component flux error from a difference of the optimal flux and an estimated flux estimated based on measurements in the electrical converter; determining a one-component third variable error from a difference of the optimal third variable and an estimated third variable; modifying the optimized pulse pattern by time-shifting switching instants of the optimized pulse pattern such that a cost function depending on the time-shifts is minimized, wherein the cost function comprises a flux error term and a third variable error term, wherein the flux error term is based on a difference of the flux error and a flux correction function providing a flux correction based on the time-shifts and the third variable error term is based on a difference of the third variable error and a third variable correction function providing a third variable correction based on the time-shifts; and applying the modified optimized pulse pattern to the electrical converter.