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公开(公告)号：US11290016B2
公开(公告)日：2022-03-29
申请号：US17066643
申请日：2020-10-09
Applicant: ABB Schweiz AG
Inventor： Esa-Kai Paatero , Nicola Notari
Abstract: A converter assembly including a source connection system comprising a primary source connection, and at least one secondary source connection; a load connection system; a primary source converter including a primary rectifier connected electrically to the primary source connection, and having a boost topology, and a DC link connected electrically between the primary rectifier and the load connection system, the DC link including DC link capacitance; a secondary source converter, which is a direct-current converter having a boost topology, connected electrically between the at least one secondary source connection and the DC link; and a pre-charge converter adapted for pre-charging the DC link capacitance. The pre-charge converter includes a pre-charge direct-current converter having a step down topology.
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公开(公告)号：US10199859B2
公开(公告)日：2019-02-05
申请号：US15369502
申请日：2016-12-05
Applicant: ABB Schweiz AG
Inventor： Carl Ngai-Man Ho , Esa-Kai Paatero , Nicola Notari
Abstract: An uninterruptable power supply system is disclosed with a precharge converter for connecting to a DC link of the uninterruptable power supply system to a DC power supply, whereby the DC link comprises a first and a second DC bus line, which are both coupled to a common reference point, whereby the common reference point can be an AC power supply neutral of the uninterruptable power supply system, comprising power connectors for connecting to the DC power supply, a first and second output connector for connecting to the first and the second DC bus line, respectively, a converter circuit for receiving DC power from the power connectors and providing DC power to the first and second output connector, and a control unit for controlling operation of the converter circuit.
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公开(公告)号：US11863014B2
公开(公告)日：2024-01-02
申请号：US17651371
申请日：2022-02-16
Applicant: ABB Schweiz AG
Inventor： Esa-Kai Paatero
CPC classification number: H02J9/062 , H02J7/007 , H02J2207/20 , H02M3/33523
Abstract: A power supply assembly including an alternating current primary source connection, a direct current secondary source connection, an alternating current load connection, a DC link, a direct-current converter connected electrically between the secondary source connection and the DC link, and a load supply converter connected electrically between the DC link and the load connection. The power supply assembly includes a trickle charger converter connected electrically between at least one alternating current connection and the secondary source connection, a nominal power of the trickle charger converter being less than nominal powers of the direct-current converter and the load supply converter.
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公开(公告)号：US20210119477A1
公开(公告)日：2021-04-22
申请号：US17073628
申请日：2020-10-19
Applicant: ABB Schweiz AG
Inventor： Esa-Kai Paatero
Abstract: A converter assembly including a source connection system including a primary source connection, and a plurality of secondary source connections, a load connection system including a load connection, a secondary source bus bar system, a switch system including a plurality of switch units each connected electrically between a corresponding secondary source connection and the secondary source bus bar system, and at least one converter module including a DC link and a secondary source side converter. Each switch unit of the switch system includes a first switch and a second switch connected in parallel, wherein the first switch has a higher switching speed than the second switch, and the second switch has a lower conduction losses than the first switch.
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公开(公告)号：US20190267836A1
公开(公告)日：2019-08-29
申请号：US16407849
申请日：2019-05-09
Applicant: ABB Schweiz AG
Inventor： Esa-Kai Paatero
Abstract: The present application includes an uninterruptable power supply device for connection of a 3-wire multiphase AC source to a 3-wire multiphase load, whereby the UPS device is provided for multiphase operation, including a converter part, which is connected to at least one power source and the load, and a 3-wire bypass, which interconnects the AC source to the load, whereby the bypass includes a bypass switch, which includes an independently controlled switching unit for each phase of the AC source, and the UPS device includes a control unit, which controls the converter part and the bypass switch, whereby the control unit controls the bypass switch to power one of the three phases of the load directly via the bypass by one phase of the AC source, and the control unit controls the converter part to power the remaining two phases of the load. The application further includes an uninterruptible power supply system including multiple of the above UPS devices, wherein the UPS devices are connected in parallel to the load.
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Patent Agency Ranking
公开(公告)号：US10003215B2
公开(公告)日：2018-06-19
申请号：US15262440
申请日：2016-09-12
Applicant: ABB Schweiz AG
Inventor： Esa-Kai Paatero
IPC: H02J9/06
CPC classification number: H02J9/061 , H02J9/062 , H02J2009/063
Abstract: An uninterrupted power supply device is disclosed having an at least 3-phase AC power supply input for connection of an AC power supply, a DC power supply input for connection of a DC power supply, a power output for connection of a load, a power conversion unit, which interconnects the AC power supply input, the DC power supply input and the power output, whereby the uninterrupted power supply device comprises a secondary control reference, a measurement unit for measuring a voltage difference between the internal control reference and the secondary control reference, and a switching unit for connecting the internal control reference to the secondary control reference when the measured voltage difference is bigger than a threshold voltage and the AC power supply is disconnected from the uninterrupted power supply device.
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公开(公告)号：US20220368155A1
公开(公告)日：2022-11-17
申请号：US17663548
申请日：2022-05-16
Applicant: ABB Schweiz AG
Inventor： Esa-Kai Paatero , Alessandro Antoniazza , Matteo Cogliati
Abstract: A power supply assembly including a primary source connection, a secondary source connection, a load connection, a primary current supply route, a supply switch system, and a converter system. The supply switch system is electrically located in the primary current supply route, and adapted for disconnecting the primary source connection from the load connection, the supply switch system including a plurality of supply switch units connected in parallel, each of the supply switch units including a controllable semiconductor switch. The power supply assembly includes a series impedance system having at least one series impedance member, and adapted to provide a balancing voltage drop for each of the parallel connected supply switch units of the supply switch system, wherein the balancing voltage drop is in series with a corresponding supply switch unit.
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公开(公告)号：US11342786B2
公开(公告)日：2022-05-24
申请号：US16407849
申请日：2019-05-09
Applicant: ABB Schweiz AG
Inventor： Esa-Kai Paatero
Abstract: The present application includes an uninterruptable power supply device for connection of a 3-wire multiphase AC source to a 3-wire multiphase load, whereby the UPS device is provided for multiphase operation, including a converter part, which is connected to at least one power source and the load, and a 3-wire bypass, which interconnects the AC source to the load, whereby the bypass includes a bypass switch, which includes an independently controlled switching unit for each phase of the AC source, and the UPS device includes a control unit, which controls the converter part and the bypass switch, whereby the control unit controls the bypass switch to power one of the three phases of the load directly via the bypass by one phase of the AC source, and the control unit controls the converter part to power the remaining two phases of the load. The application further includes an uninterruptible power supply system including multiple of the above UPS devices, wherein the UPS devices are connected in parallel to the load.
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公开(公告)号：US11211818B2
公开(公告)日：2021-12-28
申请号：US17157234
申请日：2021-01-25
Applicant: ABB Schweiz AG
Inventor： Esa-Kai Paatero
Abstract: A power supply assembly including a load supply converter system and energy saving transfer route both connected electrically to a load connection. The energy saving transfer route bypasses the load supply converter system, and includes a bypass switch system having a first bypass switch and second bypass switch connected in series. A control system of the power supply assembly is adapted to provide a system diagnostic operation including providing a diagnostic state for the bypass switch system by controlling the first bypass switch into a non-conducting state, and controlling the second bypass switch into a conducting state, generating a diagnostic voltage in an output of the load supply converter system, and detecting a short circuit incident if an electric current flowing through the bypass switch system exceeds a predetermined short circuit threshold value.
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公开(公告)号：US20210234395A1
公开(公告)日：2021-07-29
申请号：US17157234
申请日：2021-01-25
Applicant: ABB Schweiz AG
Inventor： Esa-Kai Paatero
Abstract: A power supply assembly including a load supply converter system and energy saving transfer route both connected electrically to a load connection. The energy saving transfer route bypasses the load supply converter system, and includes a bypass switch system having a first bypass switch and second bypass switch connected in series. A control system of the power supply assembly is adapted to provide a system diagnostic operation including providing a diagnostic state for the bypass switch system by controlling the first bypass switch into a non-conducting state, and controlling the second bypass switch into a conducting in state, generating a diagnostic voltage in an output of the load supply converter system, and detecting a short circuit incident if an electric current flowing through the bypass switch system exceeds a predetermined short circuit threshold value.
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