公开(公告)号：US12068685B2

公开(公告)日：2024-08-20

申请号：US17212656

申请日：2021-03-25

申请人： ABB Schweiz AG

发明人： Kuenfaat Yuen ,  Tinho Li ,  Kai Tian

IPC分类号： H02M3/156 ,  H02J7/00

CPC分类号： H02M3/156 ,  H02J7/0063 ,  Y02T10/7072

摘要： An objective of the disclosure is to provide a power supply cell of a power supply system and a power supply system using the same. The power supply cell includes a first power conversion circuit operative to output a first DC voltage across its first positive terminal and first negative terminal, a second power conversion circuit operative to output a second DC voltage across its second positive terminal and second negative terminal, a first controllable unidirectional semiconductor switch operative to generate a first conduction path from the first positive terminal of the first power conversion circuit to the second negative terminal of the second power conversion circuit, a first unidirectional semiconductor switch operative to generate a second conduction path from the first positive terminal of the first power conversion circuit to the second positive terminal of the second power conversion circuit, a second unidirectional semiconductor switch operative to generate a third conduction path from the first negative terminal of the first power conversion circuit to the second negative terminal of the second power conversion circuit, a first low-pass filter, a second low-pass filter, a third low-pass filter and a controlling unit. The controlling unit is operative to: issue turn-on signal to the first controllable unidirectional semiconductor switch so that the first power conversion circuit and the second power conversion circuit supply current to the first low-pass filter via the first conduction path, the second low-pass filter and the third low-pass filter; or issue turn-off signal to the first controllable unidirectional semiconductor switch so that the first power conversion circuit and the second power conversion circuit supply currents to the first low-pass filter in parallel via the second conduction path and the second low-pass filter together with the third conduction path and the third low-pass filter. The first low-pass filter can help smooth an output voltage and current in order to achieve a relatively wide linearly constant output power range.

公开(公告)号：US11303196B2

公开(公告)日：2022-04-12

申请号：US17212636

申请日：2021-03-25

申请人： ABB Schweiz AG

发明人： Kai Tian ,  Tinho Li ,  Kuenfaat Yuen ,  Mei Liang

IPC分类号： H02M1/14 ,  H02M5/458

摘要： An objective of the present application is to provide an apparatus for conversion between AC power and DC power. The apparatus includes a first power conversion circuit having a first AC side and a first DC side, at least one second power conversion circuit each having a second AC side and a second DC side; and at least one choke having a first terminal, a second terminal and at least one third terminal, wherein the first terminal is arranged to be electrically coupled to a phase of the AC power, and the second terminal and the at least one third terminal are electrically coupled to respective same phases of the first AC side of the first power conversion circuit and the second AC side of the at least one second power conversion circuit. Moreover, the choke includes a first common-mode choke and a first differential-mode choke, wherein: the first common-mode choke and the first differential-mode choke are electrically coupled in series via a first group of coil ends of the first common-mode choke and a first group of coil ends of the first differential-mode choke, and a second group of coil ends of one of the first common-mode choke and the first differential-mode choke are electrically coupled to the first terminal of the choke, and a second group of coil ends of the other are respectively electrically coupled to the second terminal and the at least one third terminal of the choke. The first common-mode choke can help provide high inductance to the high-frequency components of the common-mode current, which flows from the AC power source, since the impedance of the common-mode choke and the differential-mode choke depends on frequency on the same scale as inductance. The advantages of using the common-mode choke is that it provides twice the inductance of separate inductor design due to the coupling effect. Therefore it filters the common-mode current more effectively or the inductance size can be reduced for a given current ripple requirement.

公开(公告)号：US11671030B2

公开(公告)日：2023-06-06

申请号：US17423584

申请日：2019-06-12

申请人： ABB Schweiz AG

发明人： Kai Tian ,  Tinho Li ,  Kuenfaat Yuen ,  Mei Liang

IPC分类号： H02M7/23 ,  H02M5/293 ,  H02M1/00

CPC分类号： H02M7/23 ,  H02M1/0064 ,  H02M5/293 ,  H02M1/0043

摘要： Voltage converter circuits including a first and second branch. The first branch is coupled between a first DC terminal and a second DC terminal and includes a first and second winding around a magnetic core. The first and second winding are coupled to an AC terminal via a common node. The second branch is coupled in parallel to the first branch between the first and second DC terminals and includes a third winding around the magnetic core. The third winding is coupled to the AC terminal such that the first and second branches convert a first voltage into a second voltage. The first, second and third windings are configured to cause magnetic flux generated by a differential mode (DM) component of a first current in the first branch and magnetic flux generated by the DM component of a second current in the second branch to enhance with each other.

公开(公告)号：US20210211037A1

公开(公告)日：2021-07-08

申请号：US17212669

申请日：2021-03-25

申请人： ABB Schweiz AG

发明人： Kai Tian ,  Tinho Li ,  Kuenfaat Yuen ,  Mei Liang

IPC分类号： H02M1/12 ,  H02M7/219

摘要： An apparatus for conversion between AC power and DC power. The apparatus includes: a first power conversion circuit having a first AC side and a DC side, at least one second power conversion circuit each having a second AC side and sharing the DC side with the first power conversion circuit, and at least one choke having a first terminal, a second terminal and at least one third terminal, wherein: the first terminal is arranged to be electrically coupled to a phase of the AC power, and the second terminal and the at least one third terminal are electrically coupled to respective same phases of the first AC side of the first power conversion circuit and the second AC side of the at least one second power conversion circuit. Moreover, the choke includes: a first common-mode choke and a first differential-mode choke, wherein: the first common-mode choke and the first differential-mode choke are electrically coupled in series via a first group of coil ends of the first common-mode choke and a first group of coil ends of the first differential-mode choke, and a second group of coil ends of one of the first common-mode choke and the first differential-mode choke are electrically coupled to the first terminal of the choke, and a second group of coil ends of the other are respectively electrically coupled to the second terminal and the at least one third terminal of the choke. The first common-mode choke can help provide high inductance to the high-frequency components of the common-mode current, which flows from the AC power source, since the impedance of the common-mode choke and the differential-mode choke depends on frequency on the same scale as inductance. The advantages of using the common-mode choke is that it provides twice the inductance of separate inductor design due to the coupling effect. Therefore it filters the common-mode current more effectively on the inductance size can be reduced for a given current ripple requirement.

公开(公告)号：US10396676B2

公开(公告)日：2019-08-27

申请号：US16132591

申请日：2018-09-17

申请人： ABB Schweiz AG

发明人： Xiaobo Yang ,  Kuenfaat Yuen ,  Guoxing Fan ,  Dawei Yao ,  Francisco Canales

IPC分类号： H02M3/335 ,  H02M3/337 ,  H02M7/5387 ,  H02M1/00 ,  H02M7/48

摘要： The invention relates to a bidirectional DC-DC converter with intermediate conversion into AC power, including: a DC-AC conversion circuit using a plurality of MOSFETs; an AC-DC conversion circuit using a plurality of power diodes; a transformer; a pair of switches, one of which being inserted in series between a DC terminal of the DC-AC conversion circuit and the AC-DC conversion circuit and the other of which being inserted in series between another DC terminal of the DC-AC conversion circuit and the AC-DC conversion circuit; and a controller being adapted for turning on the pair of switches such that the plurality of power diodes of the AC-DC conversion circuit are reverse-biased where the AC power is transferred in the forward direction and turning off the pair of switches where the AC power is transferred in the backward direction.

公开(公告)号：US20190020281A1

公开(公告)日：2019-01-17

申请号：US16132591

申请日：2018-09-17

申请人： ABB Schweiz AG

发明人： Xiaobo Yang ,  Kuenfaat Yuen ,  Guoxing Fan ,  Dawei Yao ,  Francisco Canales

IPC分类号： H02M3/335 ,  H02M3/337 ,  H02M7/5387

CPC分类号： H02M3/33584 ,  H02M3/3376 ,  H02M7/5387 ,  H02M2001/0058 ,  H02M2007/4815

摘要： The invention relates to a bidirectional DC-DC converter with intermediate conversion into AC power, including: a DC-AC conversion circuit using a plurality of MOSFETs; and an AC-DC conversion circuit using a plurality of power diodes; a transformer magnetically coupling a first winding and a second winding, wherein the first winding being electrically connected between the DC-AC conversion circuit AC terminals and being electrically connected between the AC-DC conversion circuit AC terminals in an arrangement such that the AC power generated from the intermediate conversion by an operation of the DC-AC conversion is transferred by the transformer in a forward direction from the first winding to the second winding, and the AC-DC conversion circuit converts the AC power transferred in a backward direction from the second winding to the first winding into DC power; a pair of switches, one of which being inserted in series between respective DC terminals of the DC-AC conversion circuit and the AC-DC conversion circuit and the other of which being inserted in series between another respective DC terminals of the DC-AC conversion circuit and the AC-DC conversion circuit; and a controller being adapted for turning on the pair of switches such that the plurality of power diodes of the AC-DC conversion circuit are reverse-biased where the AC power is transferred in the forward direction and turning off the pair of switches where the AC power is transferred in the backward direction.

公开(公告)号：US11990749B2

公开(公告)日：2024-05-21

申请号：US17212593

申请日：2021-03-25

申请人： ABB Schweiz AG

发明人： Kuenfaat Yuen ,  Tinho Li ,  Kai Tian

IPC分类号： H02J1/10 ,  H02J7/00 ,  H03K17/00

CPC分类号： H02J1/108 ,  H02J7/0063 ,  H03K17/005

摘要： A power supply cell of a power supply system including a first power conversion circuit to output a first DC voltage, a second power conversion circuit to output a second DC voltage, a first controllable unidirectional semiconductor switch to generate a first conduction path from the first power conversion circuit to the second power conversion circuit, a first unidirectional semiconductor switch to generate a second conduction path from the first power conversion circuit to the second power conversion circuit, a second unidirectional semiconductor switch to generate a third conduction path from the first power conversion circuit to the second power conversion circuit, a first low-pass filter, and a controlling unit operative to issue turn-on signal or turn-off signal to the first controllable unidirectional semiconductor switch to supply current to the low-pass filter via the first conduction path or both of the second conduction path and the third conduction path.

公开(公告)号：US11418106B2

公开(公告)日：2022-08-16

申请号：US17212669

申请日：2021-03-25

申请人： ABB Schweiz AG

发明人： Kai Tian ,  Tinho Li ,  Kuenfaat Yuen ,  Mei Liang

IPC分类号： H02M1/12 ,  H02M7/219 ,  H02M7/487

摘要： An apparatus for conversion between AC power and DC power. The apparatus includes: a first power conversion circuit having a first AC side and a DC side, at least one second power conversion circuit each having a second AC side and sharing the DC side with the first power conversion circuit, and at least one choke having a first terminal, a second terminal and at least one third terminal, wherein: the first terminal is arranged to be electrically coupled to a phase of the AC power, and the second terminal and the at least one third terminal are electrically coupled to respective same phases of the first AC side of the first power conversion circuit and the second AC side of the at least one second power conversion circuit. Moreover, the choke includes: a first common-mode choke and a first differential-mode choke, wherein: the first common-mode choke and the first differential-mode choke are electrically coupled in series via a first group of coil ends of the first common-mode choke and a first group of coil ends of the first differential-mode choke, and a second group of coil ends of one of the first common-mode choke and the first differential-mode choke are electrically coupled to the first terminal of the choke, and a second group of coil ends of the other are respectively electrically coupled to the second terminal and the at least one third terminal of the choke. The first common-mode choke can help provide high inductance to the high-frequency components of the common-mode current, which flows from the AC power source, since the impedance of the common-mode choke and the differential-mode choke depends on frequency on the same scale as inductance. The advantages of using the common-mode choke is that it provides twice the inductance of separate inductor design due to the coupling effect. Therefore it filters the common-mode current more effectively on the inductance size can be reduced for a given current ripple requirement.

公开(公告)号：US20220103085A1

公开(公告)日：2022-03-31

申请号：US17423584

申请日：2019-06-12

申请人： ABB Schweiz AG

发明人： Kai Tian ,  Tinho Li ,  Kuenfaat Yuen ,  Mei Liang

IPC分类号： H02M5/293 ,  H02M1/00

摘要： Voltage converter circuits including a first and second branch. The first branch is coupled between a first DC terminal and a second DC terminal and includes a first and second winding around a magnetic core. The first and second winding are coupled to an AC terminal via a common node. The second branch is coupled in parallel to the first branch between the first and second DC terminals and includes a third winding around the magnetic core. The third winding is coupled to the AC terminal such that the first and second branches convert a first voltage into a second voltage. The first, second and third windings are configured to cause magnetic flux generated by a differential mode (DM) component of a first current in the first branch and magnetic flux generated by the DM component of a second current in the second branch to enhance with each other.

公开(公告)号：US20210273552A1

公开(公告)日：2021-09-02

申请号：US17212636

申请日：2021-03-25

申请人： ABB Schweiz AG

发明人： Kai Tian ,  Tinho Li ,  Kuenfaat Yuen ,  Mei Liang

IPC分类号： H02M1/14 ,  H02M5/458

摘要： It is therefore an objective of the invention to provide an apparatus for conversion between AC power and DC power. The apparatus includes a first power conversion circuit having a first AC side and a first DC side, at least one second power conversion circuit each having a second AC side and a second DC side; and at least one choke having a first terminal, a second terminal and at least one third terminal, wherein the first terminal is arranged to be electrically coupled to a phase of the AC power, and the second terminal and the at least one third terminal are electrically coupled to respective same phases of the first AC side of the first power conversion circuit and the second AC side of the at least one second power conversion circuit. Moreover, the choke includes a first common-mode choke and a first differential-mode choke, wherein: the first common-mode choke and the first differential-mode choke are electrically coupled in series via a first group of coil ends of the first common-mode choke and a first group of coil ends of the first differential-mode choke, and a second group of coil ends of one of the first common-mode choke and the first differential-mode choke are electrically coupled to the first terminal of the choke, and a second group of coil ends of the other are respectively electrically coupled to the second terminal and the at least one third terminal of the choke. The first common-mode choke can help provide high inductance to the high-frequency components of the common-mode current, which flows from the AC power source, since the impedance of the common-mode choke and the differential-mode choke depends on frequency on the same scale as inductance. The advantages of using the common-mode choke is that it provides twice the inductance of separate inductor design due to the coupling effect. Therefore it filters the common-mode current more effectively or the inductance size can be reduced for a given current ripple requirement.