公开(公告)号：EP3058646B1

公开(公告)日：2018-04-11

申请号：EP14780500.6

申请日：2014-10-03

Applicant: ABB Schweiz AG

Inventor： AL-HOKAYEM, Peter ,  GEYER, Tobias ,  OIKONOMOU, Nikolaos

IPC: H02M1/00 ,  H02M1/12 ,  H02P21/14 ,  H02P23/14 ,  H02M7/5387 ,  H02P21/30 ,  H02P23/30

CPC classification number: H02M1/126 ,  G05B2219/41406 ,  H02M7/53873 ,  H02M7/53875 ,  H02M2001/0003 ,  H02P21/141 ,  H02P21/30 ,  H02P23/14 ,  H02P23/30

Abstract: An electrical converter is interconnected via a filter with an electrical load or an electrical power source. A method for controlling the converter comprises the steps of: receiving a reference flux (ψ*i) for the electrical converter; determining output signals (y) comprising currents and/or voltages measured in the filter; determining an estimated flux (ψi) from the output signals (y); determining a corrective flux (ψi,damp) from the output signals (y) based on a mathematical model of the filter and a quadratic cost function; determining control input signals (u) for the electrical converter based on a sum of the estimated flux (ψi) and the corrective flux (ψi,damp); controlling the converter with the control input signals (u); and algorithmic filtering of at least one of the output signals (y) by applying a signal filter to the at least one output signal, which is designed for amplifying the at least one output signal at a resonance frequency of the filter, whereby the corrective flux (ψi,damp) is determined from the filtered output signals.

公开(公告)号：EP2870689B1

公开(公告)日：2016-09-21

申请号：EP13734754.8

申请日：2013-07-05

Applicant: ABB Schweiz AG

Inventor： SINGH RIAR, Baljit ,  GEYER, Tobias

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

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的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：EP4362311A1

公开(公告)日：2024-05-01

申请号：EP22204176.6

申请日：2022-10-27

Applicant: ABB SCHWEIZ AG

Inventor： DORFLING, Martinus David ,  GEYER, Tobias

IPC: H02M7/487

CPC classification number: H02M7/487

Abstract: A method for computing an optimized pulse pattern (20) for an electrical converter (18) is presented. The optimized pulse pattern (20) comprises a series of switching transitions, each switching transition comprising a switching angle (αi) and a switch position (ui). The switching angles (αi) are computed by minimizing a total demand distortion of a load current produced by the optimized pulse pattern (20), wherein an objective function is minimized, which models the total demand distortion of a load current in dependence of the switching angles (αi) and switch positions (ui). The total demand distortion of the load current is minimized subject to at least one additional constraint, which limits a turn-off current, and/or a switching loss, a temperature and/or a voltage to be blocked for a set of semiconductor devices (26) of the electrical converter (18).

公开(公告)号：EP4085518A1

公开(公告)日：2022-11-09

申请号：EP20823873.3

申请日：2020-12-16

Applicant: ABB SCHWEIZ AG

Inventor： BURKART, Ralph Mario ,  TSOUMAS, Ioannis ,  KIEFERNDORF, Frederick ,  GEYER, Tobias

IPC: H02M1/12 ,  H02M1/15 ,  H02M7/487 ,  H02M7/49 ,  H02M1/00

公开(公告)号：EP3806311A1

公开(公告)日：2021-04-14

申请号：EP19202732.4

申请日：2019-10-11

Applicant: ABB Schweiz AG

Inventor： DORFLING, Martinus David ,  DU TOIT MOUTON, Hendrik ,  GEYER, Tobias

IPC: H02M7/48 ,  H02M7/5387 ,  H02M1/12 ,  G05B13/04 ,  H02P23/00 ,  H02M1/00

Abstract: A method for controlling an electrical converter system (10) comprises: determining a nominal pulse pattern t p , i * Δ u p , i * and a reference trajectory ( x *) of at least one electrical quantity of the electrical converter system (10) over a horizon of future sampling instants, wherein the nominal pulse pattern t p , i * Δ u p , i * and the reference trajectory ( x *) are determined from a table of optimized pulse patterns, the nominal pulse pattern t p , i * Δ u p , i * comprises switching transitions Δ u p , i * between output voltages of an electrical converter (12) of the electrical converter system (10) and the reference trajectory ( x *) indicates a desired future development of an electrical quantity of the converter system (10); determining a small-signal pulse pattern ( ũ abc ( t , λ p , i )) by minimizing a cost function, which cost function includes a small-signal error, which is based on a difference of a reference trajectory ( x *) and a predicted trajectory ( x ), wherein the impulse strengths ( λ p,i ) of the small-signal pulse pattern ( ũ abc ( t, λ p , i )) encode a voltage-time value at each switching transition of the nominal pulse pattern t p , i * Δ u p , i * , and wherein the predicted trajectory ( x ) is determined over the horizon from measurements ( i , v c , i g ) in the converter system (10) and from a model of the converter system (10), into which a sum of the nominal pulse pattern t p , i * Δ u p , i * and small-signal pulse pattern ( ũ abc (t, λ p , i )) are input; determining a modified pulse pattern ( t opt,p,i , Δ u p,i ) by moving the switching transitions of the nominal pulse pattern t p , i * Δ u p , i * , wherein a switching transition is moved by a time interval, such that the time interval times a direction of the switching transition equals the voltage-time value that the impulse strength ( λ p , i ) encodes at the nominal switching transition; and applying at least the next switching transition of the modified pulse pattern ( t opt,p,i , Δ u p,i ) to the electrical converter system (10).

公开(公告)号：EP3497782B1

公开(公告)日：2020-09-30

申请号：EP17748805.3

申请日：2017-08-10

Applicant: ABB Schweiz AG

Inventor： VAN-DER-MERWE, Wim ,  GEYER, Tobias ,  SCHWEIZER, Mario ,  TSOUMAS, Ioannis

IPC: H02M7/49

公开(公告)号：EP3497782A1

公开(公告)日：2019-06-19

申请号：EP17748805.3

申请日：2017-08-10

Applicant: ABB Schweiz AG

Inventor： VAN-DER-MAERWEN, Wim ,  GEYER, Tobias ,  SCHWEIZER, Mario ,  TSOUMAS, Ioannis

IPC: H02M7/49

Abstract: A method for controlling a converter system includes: determining, with a first controller stage, an output voltage reference for the converter system; generating, with the first controller stage, switching commands for a main converter based on the output voltage reference, such that the main converter converts an input voltage into an intermediate voltage provided at an output of the main converter and following the output voltage reference; and generating, with a second controller stage, switching commands for a floating converter cell connected to the output of the main converter, such that the floating converter cell converts the intermediate voltage into an output voltage provided at an output of the floating converter cell, wherein the floating converter cell comprises a cell capacitor and a semiconductor switch arrangement for connecting and disconnecting the cell capacitor between the output of the main converter and the output of the floating converter cell.

公开(公告)号：EP3195462A1

公开(公告)日：2017-07-26

申请号：EP15738636.8

申请日：2015-07-16

Applicant: ABB Schweiz AG

Inventor： GEYER, Tobias ,  VAN-DER-MERWE, Wim ,  SPUDIC, Vedrana ,  DARIVIANAKIS, Georgios

IPC: H02M7/539 ,  H02J3/01 ,  H02M7/483 ,  H02M7/5395 ,  H02M7/5387

CPC classification number: H02J3/01 ,  G05B13/048 ,  H02J3/1821 ,  H02J2003/007 ,  H02M1/08 ,  H02M1/12 ,  H02M7/53873 ,  H02M7/539 ,  H02M7/5395 ,  H02M2007/4835 ,  Y02E40/22 ,  Y02E40/26 ,  Y02E40/30 ,  Y02E40/40

Abstract: A method for controlling a modular converter (16) connected to an electrical grid (12) for active power filtering the electrical grid (12) to compensate for a load (14) connected to the electrical grid (12), comprises: receiving an actual load current (i i ) and an actual converter state (x) of the modular converter (16); determining, from the actual load current and a history of previous load currents, a sequence of future load currents over a prediction horizon (40); predicting a sequence of future converter states of the modular converter (16) and a sequence of manipulated variables (U) for the modular converter (16) over the prediction horizon (40) by solving an optimization problem based on the actual converter state (x) and the future load currents by minimizing an objective function mapping control objectives to a scalar performance index subject to the dynamical evolution of a prediction model of the modular converter (16) and subject to constraints (42); and applying a next switching state, which is determined from a first element of the sequence of manipulated variables (U), to the modular converter (16).

Abstract translation: 一种用于控制连接到电网（12）以对电网（12）进行有功功率过滤以补偿连接到电网（12）的负载（14）的模块化转换器（16）的方法，包括：接收实际 负载电流（ii）和模块转换器（16）的实际转换器状态（x）; 根据所述实际负载电流和先前负载电流的历史确定预测层（40）上的未来负载电流序列; 通过解决基于实际转换器状态（x）的优化问题来预测模块转换器（16）的未来转换器状态的序列以及模块转换器（16）在预测层（40）上的一系列操作变量（U） ）和未来负载电流，其通过最小化将控制目标映射到标量性能指标的目标函数，所述标量性能指标服从模块化转换器（16）的预测模型的动态演变并受制于约束（42）; 并且将从操纵变量（U）的序列的第一元素确定的下一个切换状态应用到模块化转换器（16）。

公开(公告)号：EP4304079A9

公开(公告)日：2024-04-03

申请号：EP22182749.6

申请日：2022-07-04

Applicant: ABB SCHWEIZ AG

Inventor： TSOUMAS, Ioannis ,  GEYER, Tobias

IPC: H02P9/00 ,  H02M5/42

Abstract: A method for controlling an electrical converter (14) comprises: determining an average flux reference ψ S , av ref γ av ref from a reference torque ( T ref ) and an estimated torque ( T̂ ), which is determined from measured currents ( i Sabc,I , i Sabc,II ) and measured voltages ( v Sabc,I , v Sabc,II ) and/or reconstructed voltages ( v̂ Sabc,I , v̂ Sabc,II ) in the winding systems (20a, 20b); determining at least one difference flux reference ψ S ,diff ref γ diff ref from at least one difference current reference i Sdq ,diff ref ; determining a winding flux reference ψ S ,I ref γ I ref ψ S ,II ref γ II ref for each winding system (20a, 20b) from the average flux reference ψ S , av ref γ av ref and the at least one difference flux reference ψ S ,diff ref γ diff ref by adding and/or subtracting the at least one difference flux reference ψ S ,diff ref , γ diff ref to the average flux reference ( ψ S , av ref , γ av ref ) ; determining switching commands ( u abc,I , u abc,II ) for each converter branch (14a, 14b) from the winding flux reference ψ S ,I ref , ∡ ψ S ,I ref , ψ S ,II ref , ∡ ψ S ,II ref and an estimated winding flux ( ψ̂ S ,I , ψ̂ S ,I , ψ̂ S ,II , ψ̂ S ,II ) for the winding system (20a, 20b), which is connected to the respective converter branch (14a, 14b), wherein the estimated winding flux ( ψ̂ S ,I , ψ̂ S ,I , ψ̂ S ,II , ψ̂ S ,II ) is determined from the measured current ( i Sabc,I , i Sabc,II ) and the measured voltages ( v Sabc,I , v Sabc,II ) and/or the reconstructed voltages ( v̂ Sabc,I , v̂ Sabc,II ) in the winding system (20a, 20b), and wherein the winding flux reference ( ψ S , I ref , ∡ ψ S , I ref , ψ S , II ref , ∡ ψ S , II ref ) and the estimated winding flux ( ψ̂ S ,I , ψ̂ S ,I , ψ̂ S ,II , ψ̂ S ,II ) are provided to a dedicated model predictive controller (52) for the respective converter branch (14a, 14b), which determines the switching commands ( u abc,I , u abc,II ); and applying the switching commands ( u abc,I , u abc,II ) to each converter branch (14a, 14b).

公开(公告)号：EP4304079A1

公开(公告)日：2024-01-10

申请号：EP22182749.6

申请日：2022-07-04

Applicant: ABB SCHWEIZ AG

Inventor： TSOUMAS, Ioannis ,  GEYER, Tobias

IPC: H02P9/00 ,  H02M5/42

Abstract: A method for controlling an electrical converter (14) comprises: determining an average flux reference ψ S , av ref γ av ref from a reference torque ( T ref ) and an estimated torque ( T̂ ), which is determined from measured currents ( i Sabc,I , i Sabc,II ) and measured voltages ( v Sabc,I , v Sabc,II ) and/or reconstructed voltages ( v̂ Sabc,I , v̂ Sabc,II ) in the winding systems (20a, 20b); determining at least one difference flux reference ψ S ,diff ref γ diff ref from at least one difference current reference i Sdq ,diff ref ; determining a winding flux reference ψ S ,I ref γ I ref ψ S ,II ref γ II ref for each winding system (20a, 20b) from the average flux reference ψ S , av ref γ av ref and the at least one difference flux reference ψ S ,diff ref γ diff ref by adding and/or subtracting the at least one difference flux reference ψ S ,diff ref , γ diff ref to the average flux reference ( ψ s ,av ref , γ av ref ) ; determining switching commands ( u abc,I , u abc,II ) for each converter branch (14a, 14b) from the winding flux reference ψ S ,I ref , ∡ ψ S ,I ref , ψ S ,II ref , ∡ ψ S ,II ref and an estimated winding flux ( ψ̂ S ,I , ψ̂ S ,I , ψ̂ S ,II , ψ̂ S ,II ) for the winding system (20a, 20b), which is connected to the respective converter branch (14a, 14b), wherein the estimated winding flux ( ψ̂ S ,I , ψ̂ S ,I , ψ̂ S ,II , ψ̂ S ,II ) is determined from the measured current ( i Sabc,I , i Sabc,II ) and the measured voltages ( v Sabc,I , v Sabc,II ) and/or the reconstructed voltages ( v̂ Sabc,I , v̂ Sabc,II ) in the winding system (20a, 20b), and wherein the winding flux reference ( ψ S , I ref , ∡ ψ S , I ref , ψ S , II ref , ∡ ψ S , II ref ) and the estimated winding flux ( ψ̂ S ,I , ψ̂ S ,I , ψ̂ S ,II , ψ̂ S ,II ) are provided to a dedicated model predictive controller (52) for the respective converter branch (14a, 14b), which determines the switching commands ( u abc,I , u abc,II ); and applying the switching commands ( u abc,I , u abc,II ) to each converter branch (14a, 14b).