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公开(公告)号：WO2022223519A1
公开(公告)日：2022-10-27
申请号：PCT/EP2022/060245
申请日：2022-04-19
Applicant: ABB SCHWEIZ AG
Inventor： TSOUMAS, Ioannis , DARIVIANAKIS, Georgios , ULMER, Daniel
Abstract: A method for controlling an energy conversion system (20) is provided. The system comprises a rotating electrical machine (22), a machine-side converter (24), a DC-link (26) and a grid-side converter (28). The method comprises modulating the machine-side converter (24) for converting an AC voltage of the rotating electrical machine (22) into a DC voltage supplied to the DC-link (26); and modulating the grid-side converter (28) to convert a DC-link voltage at the DC-link (26) into an AC output voltage to be supplied to an electrical grid, wherein the machine-side converter (24) is modulated with first optimized pulse patterns, which have been optimized such that a peak value of the DC-link voltage or of a DC-link voltage component of the DC-link voltage is constrained to a predetermined value.
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公开(公告)号：WO2018029303A1
公开(公告)日：2018-02-15
申请号：PCT/EP2017/070341
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 (10) comprises: determining, with a first controller stage (44), an output voltage reference (60) for the converter system (10); generating, with the first controller stage (44), switching commands (62) for a main converter (12) based on the output voltage reference (60), such that the main converter (12) converts an input voltage (48) into an intermediate voltage (50) provided at an output (24) of the main converter (12) and following the output voltage reference (60); and generating, with a second controller stage (46), switching commands (66) for a floating converter cell (30) connected to the output (24) of the main converter (12), such that the floating converter cell (30) converts the intermediate voltage (50) into an output voltage (54) provided at an output (40, 34) of the floating converter cell (30), wherein the floating converter cell (30) comprises a cell capacitor (38) and a semiconductor switch arrangement (36) for connecting and disconnecting the cell capacitor (38) between the output (24) of the main converter (12) and the output (40, 34) of the floating converter cell (30).
Abstract translation: 一种用于控制转换器系统（10）的方法，包括：利用第一控制器级（44）确定所述转换器系统（10）的输出电压参考（60）; 利用第一控制器级（44）基于输出电压参考（60）产生用于主转换器（12）的开关命令（62），使得主转换器（12）将输入电压（48）转换成 提供在主转换器（12）的输出端（24）并且跟随输出电压基准（60）的中间电压（50）; 以及利用第二控制器级（46）产生用于连接到主转换器（12）的输出（24）的浮动转换器单元（30）的开关命令（66），使得浮动转换器单元（30）转换 （30）的输出（40,34）处提供的中间电压（50）转换成输出电压（54），其中浮动转换器单元（30）包括单元电容器（38）和半导体开关 用于在主转换器（12）的输出（24）和浮动转换器单元（30）的输出（40,34）之间连接和断开单元电容器（38）的布置（36）。
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公开(公告)号：WO2020182548A1
公开(公告)日：2020-09-17
申请号：PCT/EP2020/055583
申请日：2020-03-03
Applicant: ABB SCHWEIZ AG
Inventor： SCHWEIZER, Mario , GEYER, Tobias , TSOUMAS, Ioannis
Abstract: An electrical converter (10) comprises a main converter (12) for generating a first output voltage (u 1 ab c ) and a converter cell (14a) for converting the first output voltage (u 1 abc ) into a second output voltage (u 2abc ). A method for operating an electrical converter (10) comprises: receiving a reference voltage (v* abc ) for the electrical converter (10); pulse width modulating the reference voltage (v* abc ) with a first modulation frequency for generating a first switching signal (s 1abc ) for the main converter (12); switching the main converter (12) with the first switching signal (s 1abc ) to generate the first output voltage (u 1 abc ); estimating the first output voltage (v 1 abc ) from the first switching signal (s 1abc ); determining a voltage error (v* 2abc ) by subtracting the estimated first output voltage (v 1 abc ) from the reference voltage (v* abc ); pulse width modulating the voltage error (v* 2abc ) with a second modulation frequency, which is higher than the first modulation frequency, for generating a further switching signal (s 2abc , s 3abc ) for the converter cell (14a); and switching the converter cell (14a) with the further switching signal (s 2abc , s 3abc ) to generate the second output voltage (u 2abc ).
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公开(公告)号：EP4451530A1
公开(公告)日：2024-10-23
申请号：EP23168626.2
申请日：2023-04-19
Applicant: ABB SCHWEIZ AG
Inventor： SCHWEIZER, Mario , KIEFERNDORF, Frederick , TSOUMAS, Ioannis
Abstract: An electrical converter (10) and a method for controlling the electrical converter (10) are provided. The electrical converter (10) comprises: a main stage (12), with the main stage (12) being configured for converting a DC voltage into a three phase intermediate voltage and having three main outputs (24), one for each phase of the intermediate voltage; a filter cell stage (14) having three filter cells (30a, 30b, 30c) with each filter cell (30a, 30b, 30c) being coupled to a corresponding one of the three main outputs (24) and being configured for modifying the corresponding phase of the intermediate voltage; and three bypass switches (39) for bypassing the filter cells (30a, 30b, 30c), with each of the three bypass switches (39) being electrically coupled to a corresponding one of the three main outputs (24) and to a converter output (16) of the electrical converter (10), wherein the converter output (16) is coupled to the three filter cells (30a, 30b, 30c) and is configured for providing a three phase output voltage of the electrical converter (10). The method for controlling the electrical converter (10) comprises the steps of: determining a main stage pulse pattern (60) for the main stage (12), wherein the main stage pulse pattern (60) is determined depending on a voltage reference signal (V ref,abc ) for the output voltage and wherein the main stage pulse pattern (60) comprises switching instants for the main stage (12) over a next modulation period of the main stage (12); determining a cell pulse pattern for the filter cell stage (14), wherein the cell pulse pattern is determined from a cell output voltage reference signal (64), which is determined from the voltage reference signal (V ref,abc ) and a main stage voltage signal (62) determined from the main stage pulse pattern (60), and wherein the cell pulse pattern comprises switching instants for the three filter cells (30a, 30b, 30c) over the next modulation period; applying at least a next switching instant determined from the main stage pulse pattern (60) and the cell pulse pattern to the electrical converter (10), when all of the filter cells (30a, 30b, 30c) are working properly; applying at least a next switching instant determined from the main stage pulse pattern (60) and a modified cell pulse pattern (70) to the electrical converter (10), when one of the filter cells (30a, 30b, 30c) fails, wherein the failed filter cell (30a) is bypassed by activating the corresponding bypass switch (39), the modified cell pulse pattern (70) is determined under the assumption that a cell voltage provided by the failed filter cell (30a) is zero, and the intermediate voltage is modified by the two remaining filter cells (30b, 30c) depending on the modified cell pulse pattern (70) in order to provide the output voltage of the electrical converter (10).
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公开(公告)号：EP4085519A1
公开(公告)日：2022-11-09
申请号：EP20824574.6
申请日：2020-12-17
Applicant: ABB SCHWEIZ AG
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Patent Agency Ranking
公开(公告)号：EP4224697A1
公开(公告)日：2023-08-09
申请号：EP22155517.0
申请日：2022-02-08
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); receiving a rotor speed ( ω r ) of the electrical machine (18); determining an optimized pulse pattern (OPP) for the electrical converter (12) depending on the rotor speed ( ω r ); determining a rotor angle ( θ r ) of a rotor flux vector depending on the rotor speed ( ω r ); determining a reference stator angle θ S ∗ of the stator flux vector ( ψ s ) depending on the rotor angle ( θ r ); 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 (42) 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).
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公开(公告)号：EP4304075A1
公开(公告)日：2024-01-10
申请号：EP22182764.5
申请日：2022-07-04
Applicant: ABB SCHWEIZ AG
Inventor： DORFLING, Martinus David , KARACA, Orcun , GEYER, Tobias , TSOUMAS, Ioannis
Abstract: A method for controlling an electrical converter system (10) with at least two electrical converters (28a, 28b) comprises: determining a pulse pattern (A 1 , U 1 ; A 2 , U 2 ) for each electrical converter (28a, 28b) from a reference converter voltage of the respective converter (28a, 28b), wherein each pulse pattern ( A 1 , U 1 ; A 2 , U 2 ) comprising switching times ( A 1 ; A 2 ) and switching transitions (U 1 ; U 2 ) for the respective electrical converter (28a, 28b); determining a sum current reference ( i sum ∗ ) and at least one difference current reference ( i diff ∗ ) produced by the pulse pattern (A 1 ,U 1 ;A 2 ,U 2 ) and determining a measured sum current ( i sum ) and at least one measured difference current ( i diff ) from measurements in the electrical converter system (10); determining a sum current error ( i sum,err ) and at least one difference current error ( i diff,err ), wherein the sum current error ( i sum,err ) is determined by subtracting the measured sum current ( i sum ) from the sum current reference ( i sum ∗ ), and a difference current error ( i diff,err ) is determined by subtracting the respective measured difference current ( i diff ) from the difference current reference ( i diff ∗ ); determining a sum flux modification (Δ ψ sum ) by multiplying a gain (L̃ t ) to the sum current error ( i sum,err ) and at least one difference flux modification (Δ ψ diff ) by multiplying a gain (L s ) to the respective difference current error ( i diff,err ); mapping the sum flux modification (Δ ψ sum ) and the at least one difference flux modification (Δ ψ diff ) to a converter flux modification (Δ ψ 1,abc , Δ ψ 2,abc ) for each electrical converter (28a, 28b); modifying the pulse pattern (A 1 , U 1 ; A 2 , U 2 ) for each electrical converter (28a, 28b) by moving the switching times, such that the converter flux modification (Δ ψ 1, abc , Δ ψ 2, abc ) is compensated by the modified pulse pattern ( u 1, abc , u 2 ,abc ) with the moved switching times; and applying the modified pulse patterns ( u 1 ,abc , u 2,abc ) to the electrical converters (28a, 28b).
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公开(公告)号：EP4436027A1
公开(公告)日：2024-09-25
申请号：EP23163687.9
申请日：2023-03-23
Applicant: ABB SCHWEIZ AG
Inventor： ULMER, Daniel , KARACA, Orcun , DORFLING, Martinus David , HARNEFORS, Lennart , TSOUMAS, Ioannis
IPC: H02M5/458 , H02M1/12 , H02M7/493 , H02M7/5387
CPC classification number: H02M1/12 , H02M5/4585 , H02J2300/2820200101 , H02M7/53875 , H02M7/493 , H02J3/381
Abstract: An electrical converter (14) comprising at least two converter branches (14a, 14b) connected in parallel between a power source and/or load (12) and a transformer (16). A method for controlling the electrical converter (14) comprises: measuring a DC link voltage (vdc,I, vdc,II) and determining a reference DC link voltage vdc,Iref,vdc,IIref of a DC link (26) of each converter branch (14a, 14b); calculating a measured sum voltage (vdc,sum), which is the sum of the measured DC link voltages (vdc,I, vdc,II), and at least one measured difference voltage (vdc,diff), which is the difference of two of the at least two measured DC link voltages (vdc,I, vdc,II); calculating a reference sum voltage vdc,sumref, which is the sum of the reference DC link voltages vdc,Iref,vdc,IIref and at least one reference difference voltage vdc,diffref, which is the difference of two of the at least two reference DC link voltages vdc,Iref,vdc,IIref ; calculating a sum voltage error (Δvdc,sum), which is the difference of the measured sum voltage (vdc,sum) and the reference measured sum voltage vdc,sumref, and at least one difference voltage error (Δvdc,diff), which is the difference of the measured difference voltage (vdc,diff) and the reference difference voltage vdc,diffref; determining a sum reference quantity id,sumref,Te,sumref from the sum voltage error (Δvdc,sum) by inputting the sum voltage error (Δvdc,sum) into a sum PI controller (40a); determining at least one difference reference quantity id,diffref,Te,diffref from the at least one difference voltage error (Δvdc,diff) by inputting the difference voltage error (Δvdc,diff) into a difference PI controller (40b), wherein a gain (kp,sum) of the sum PI controller (40a) is higher than a gain (kp,diff) of the difference PI controller (40b); and controlling the converter branches (14a, 14b) based on the sum reference quantity id,sumref,Te,sumref and the at least one difference reference quantity id,diffref,Te,diffref.
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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
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).
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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
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).
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