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1.发明申请公开(公告)号：US20200321798A1
公开(公告)日：2020-10-08
申请号：US16377863
申请日：2019-04-08
Applicant: ABB Schweiz AG
Inventor： Adil Oudrhiri , Christopher Alan Belcastro
Abstract: Technologies for interactive predictive control of uninterruptible power supply systems are disclosed. In an illustrative embodiment, a method of controlling a double-conversion uninterruptible power supply (UPS) system may include defining, with a digital signal processor (DSP), a curve as a function of a plurality of user-input reference points associated with an inductor coupled to either an input or an output of the double-conversion UPS system, where the curve is indicative of an electromagnetic behavior of the inductor. The method may also include determining, with the DSP, in response to an application of current to the inductor, an inductance value for the inductor based on the defined curve and the applied current. The method may further include setting, with the DSP, as a function of the determined inductance value, a duty cycle to control switching of at least one of an active rectifier and an inverter of the double-conversion UPS system.
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公开(公告)号：US20190372389A1
公开(公告)日：2019-12-05
申请号：US15997120
申请日：2018-06-04
Applicant: ABB Schweiz AG
Inventor： Zhiguo Pan , Adil Oudrhiri , Zichi Zhang , Yu Du
IPC: H02J9/06
Abstract: A resonant turn-off circuit is provided to disconnect an inadequate power source and transfer a load to an alternate power source. In the circuit, a main switch is turned off before the AC cycle of the power source crosses zero. As a result, the main switch may be turned off quickly to transfer electric power supplied to a load to a second power source. The circuit may include resonant switches, a capacitor, a pre-charging power supply and an inductor. When it is desired to turn off the main switch, a resonant switch is turned off to cause a voltage reversal across the switch.
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公开(公告)号：US20220247304A1
公开(公告)日：2022-08-04
申请号：US17616596
申请日：2019-06-03
Applicant: Adil OUDRHIRI , ABB Schweiz AG
Inventor： Adil Oudrhiri , Debrup Das , Zhiguo Pan
Abstract: A static transfer switch is provided for supplying power to a load alternately from two different power sources. Preferably, switching between the two power sources occurs within one electrical cycle. In order to control inrush currents and reduce disruption during power transfers between the two power sources, switches are provided to configure which input phases are connected to the output phases.
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公开(公告)号：US10797513B1
公开(公告)日：2020-10-06
申请号：US16377863
申请日：2019-04-08
Applicant: ABB Schweiz AG
Inventor： Adil Oudrhiri , Christopher Alan Belcastro
Abstract: Technologies for interactive predictive control of uninterruptible power supply systems are disclosed. In an illustrative embodiment, a method of controlling a double-conversion uninterruptible power supply (UPS) system may include defining, with a digital signal processor (DSP), a curve as a function of a plurality of user-input reference points associated with an inductor coupled to either an input or an output of the double-conversion UPS system, where the curve is indicative of an electromagnetic behavior of the inductor. The method may also include determining, with the DSP, in response to an application of current to the inductor, an inductance value for the inductor based on the defined curve and the applied current. The method may further include setting, with the DSP, as a function of the determined inductance value, a duty cycle to control switching of at least one of an active rectifier and an inverter of the double-conversion UPS system.
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公开(公告)号：US10903649B1
公开(公告)日：2021-01-26
申请号：US16521694
申请日：2019-07-25
Applicant: ABB Schweiz AG
Inventor： Adil Oudrhiri , Yu Du , Yuzhi Zhang , Xiaoqing Song
Abstract: A static transfer switch is provided for supplying power to a load alternately from two different power sources. Switching between the two power sources may occur within a fraction of one electrical cycle. In response to sensing degraded performance in the power source supplying the load, a gate signal is turned off to a first switch coupled between the power source and the load. A third switch coupled between an energy storage and the first switch is also closed to release a current to the input or output of the first switch The current forces a drop in current conducted through the first switch and causes the first switch to open and stop conducting current. A second switch coupled between the alternate power source and the load is then closed to supply power to the load from the alternate power source.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20200244097A1
公开(公告)日：2020-07-30
申请号：US16258825
申请日：2019-01-28
Applicant: ABB Schweiz AG
Inventor： Adil Oudrhiri , Christopher Alan Belcastro
Abstract: Technologies for transferring a load by a static transfer switch (STS) to a catcher uninterruptible power supply (UPS) are disclosed. In an illustrative embodiment, each STS in a catcher UPS system monitors an available power of the catcher UPS. The STS determines, in response to a power failure event of an associated UPS, whether a real-time power supplied to a load connected to the STS exceeds the available power of the catcher UPS and whether the STS has priority over each other STS in the system. The STS transfers the load from the associated UPS to the catcher UPS in response to determining that the real-time power supplied to the load does not exceed the available power of the catcher UPS and that the STS has priority over each other STS in the system.
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公开(公告)号：US11183871B2
公开(公告)日：2021-11-23
申请号：US16258825
申请日：2019-01-28
Applicant: ABB Schweiz AG
Inventor： Adil Oudrhiri , Christopher Alan Belcastro
Abstract: Technologies for transferring a load by a static transfer switch (STS) to a catcher uninterruptible power supply (UPS) are disclosed. In an illustrative embodiment, each STS in a catcher UPS system monitors an available power of the catcher UPS. The STS determines, in response to a power failure event of an associated UPS, whether a real-time power supplied to a load connected to the STS exceeds the available power of the catcher UPS and whether the STS has priority over each other STS in the system. The STS transfers the load from the associated UPS to the catcher UPS in response to determining that the real-time power supplied to the load does not exceed the available power of the catcher UPS and that the STS has priority over each other STS in the system.
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公开(公告)号：US20210028621A1
公开(公告)日：2021-01-28
申请号：US16521694
申请日：2019-07-25
Applicant: ABB Schweiz AG
Inventor： Adil Oudrhiri , Yu Du , Yuzhi Zhang , Xiaoqing Song
Abstract: A static transfer switch is provided for supplying power to a load alternately from two different power sources. Switching between the two power sources may occur within a fraction of one electrical cycle. In response to sensing degraded performance in the power source supplying the load, a gate signal is turned off to a first switch coupled between the power source and the load. A third switch coupled between an energy storage and the first switch is also closed to release a current to the input or output of the first switch The current forces a drop in current conducted through the first switch and causes the first switch to open and stop conducting current. A second switch coupled between the alternate power source and the load is then closed to supply power to the load from the alternate power source.
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公开(公告)号：US12212229B2
公开(公告)日：2025-01-28
申请号：US17616596
申请日：2019-06-03
Applicant: ABB Schweiz AG
Inventor： Adil Oudrhiri , Debrup Das , Zhiguo Pan
Abstract: A static transfer switch is provided for supplying power to a load alternately from two different power sources. Preferably, switching between the two power sources occurs within one electrical cycle. In order to control inrush currents and reduce disruption during power transfers between the two power sources, switches are provided to configure which input phases are connected to the output phases.
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公开(公告)号：US11018666B1
公开(公告)日：2021-05-25
申请号：US16795988
申请日：2020-02-20
Applicant: ABB Schweiz AG
Inventor： Yu Du , Xiaoquing Song , Yuzhi Zhang , Adil Oudrhiri
Abstract: An apparatus and method that can accelerate the turn off time for a thyristor current interrupter. Following commutation of a load current from a main thyristor to an auxiliary turn-off unit, a capacitor of the auxiliary turn-off unit can provide a resonant current to create a zero current crossing for turning the main thyristor off, as well as provide a reverse bias voltage for the main thyristor. The auxiliary turn-off unit can hold the main thyristor off and facilitate sufficient time being available for main thyristor to block forward system voltage. A voltage level of another capacitor of the auxiliary turn-off unit can, with a switch of the auxiliary turn-off unit and the main thyristor turned off, be increased to a level that triggers at least one voltage-clamping unit to absorb electrical power from that capacitor. The load current passing in the auxiliary turn-off unit can be decreased as the electrical power is absorbed to a level at which one or more auxiliary thyristor switches of the auxiliary turn-off unit can be turned off.
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