公开(公告)号：US09473013B2

公开(公告)日：2016-10-18

申请号：US14413149

申请日：2013-07-05

Applicant: ABB Technology AG

Inventor： Baljit Singh Riar ,  Tobias Geyer

IPC: H02M1/08 ,  H02M7/06 ,  H02M7/487 ,  H02M7/797 ,  H02M1/12 ,  H02M1/00 ,  H02M3/335 ,  H02J3/18 ,  H02M7/483

CPC classification number: H02M1/08 ,  H02J3/1857 ,  H02M1/12 ,  H02M3/33584 ,  H02M7/06 ,  H02M7/487 ,  H02M7/797 ,  H02M2001/0054 ,  H02M2007/4835 ,  Y02B70/1491 ,  Y02E40/26

Abstract: A method for controlling a modular converter with a plurality of converter modules includes: selecting possible future switching sequences of the converter based on an actual converter switching state; predicting a future current trajectory for each switching sequence based on actual internal currents and on actual internal voltages; and determining candidate sequences from the switching sequences, wherein a candidate sequence is a switching sequence with a current trajectory that respects predefined bounds with respect to a reference current or, when a predefined bound is violated, moves the current closer to such a predefined bound. The method includes predicting future module voltages for each candidate sequence; evaluating a cost function for each candidate sequence; and selecting the next converter switching state as a first converter switching state of a candidate sequence with minimal costs.

Abstract translation: 一种用于控制具有多个转换器模块的模块化转换器的方法包括：基于实际的转换器切换状态来选择转换器的未来可能的切换序列; 基于实际内部电流和实际内部电压预测每个开关序列的未来当前轨迹; 以及从所述切换序列确定候选序列，其中候选序列是具有相对于参考电流相对于预定界限的当前轨迹的切换序列，或者当违反预定界限时，使所述电流更接近所述预定界限。 该方法包括预测每个候选序列的未来模块电压; 评估每个候选序列的成本函数; 并以最小的成本选择下一个转换器切换状态作为候选序列的第一转换器切换状态。

公开(公告)号：US20150171726A1

公开(公告)日：2015-06-18

申请号：US14413149

申请日：2013-07-05

Applicant: ABB Technology AG

Inventor： Baljit Singh Riar ,  Tobias Geyer

IPC: H02M1/08 ,  H02M1/12

CPC classification number: H02M1/08 ,  H02J3/1857 ,  H02M1/12 ,  H02M3/33584 ,  H02M7/06 ,  H02M7/487 ,  H02M7/797 ,  H02M2001/0054 ,  H02M2007/4835 ,  Y02B70/1491 ,  Y02E40/26

Abstract: A method for controlling a modular converter with a plurality of converter modules includes: selecting possible future switching sequences of the converter based on an actual converter switching state; predicting a future current trajectory for each switching sequence based on actual internal currents and on actual internal voltages; and determining candidate sequences from the switching sequences, wherein a candidate sequence is a switching sequence with a current trajectory that respects predefined bounds with respect to a reference current or, when a predefined bound is violated, moves the current closer to such a predefined bound. The method includes predicting future module voltages for each candidate sequence; evaluating a cost function for each candidate sequence; and selecting the next converter switching state as a first converter switching state of a candidate sequence with minimal costs.

Abstract translation: 一种用于控制具有多个转换器模块的模块化转换器的方法包括：基于实际的转换器切换状态来选择转换器的未来可能的切换序列; 基于实际内部电流和实际内部电压预测每个开关序列的未来当前轨迹; 以及从所述切换序列确定候选序列，其中候选序列是具有相对于参考电流相对于预定界限的当前轨迹的切换序列，或者当违反预定界限时，使所述电流更接近所述预定界限。 该方法包括预测每个候选序列的未来模块电压; 评估每个候选序列的成本函数; 并以最小的成本选择下一个转换器切换状态作为候选序列的第一转换器切换状态。