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公开(公告)号：US11171597B2
公开(公告)日：2021-11-09
申请号：US16036159
申请日：2018-07-16
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Peter Steimer
Abstract: Unique systems, methods, techniques and apparatuses of hybrid power plants are disclosed. One exemplary embodiment is a hybrid power plant system including a plurality of hybrid generation units each including an AC collection bus, an AC power source, an AC-AC power converter coupled to the AC power source and AC collection bus, a DC power source, a DC-AC converter coupled to the DC power source and the AC collection bus, an energy storage device, and a power transformer coupled to the AC collection bus and structured to receive AC power from the AC collection bus, step up a voltage of the received AC power, and output medium voltage AC (MVAC) power.
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公开(公告)号：US10693293B2
公开(公告)日：2020-06-23
申请号：US15344013
申请日：2016-11-04
Applicant: ABB Schweiz AG
Inventor： Li Qi , Jiuping Pan , Yao Chen , Guoju Zhang
Abstract: Methods and apparatus for protecting a direct-current (DC) electric power distribution system that includes one or more AC/DC converters and/or one more DC/DC converters, and one or more loads, connected by DC buses. An example method, which is carried out in response to the detection of a fault somewhere in the system, begins with limiting an output current of each of one or more of the converters so that each of the limited converters outputs a limited DC current at or about a corresponding predetermined current level. After the current limiting of the one or more converters has taken place, one or more protection devices in the system are activated, where the activating at least partly depends on the limited DC currents being at or about the predetermined fault current levels.
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公开(公告)号：US10348093B2
公开(公告)日：2019-07-09
申请号：US15378679
申请日：2016-12-14
Applicant: ABB Schweiz AG
Inventor： Harish Suryanarayana , Hongrae Kim , Sara Ahmed , Peter Steimer , Philippe Maibach , Hans Krattiger , Silverio Alvarez , Paolo Casini , Jiuping Pan
Abstract: Unique systems, methods, techniques and apparatuses of a power collection system are disclosed herein. One exemplary embodiment is an MVDC collection system coupled to a utility grid including a collection bus, a plurality of branches coupled to the collection bus, and a branch controller. Each of the plurality of branches include a semiconductor switch coupled to the collection bus, and a DC/DC converter coupled to the semiconductor switch and an LVDC power source. The branch controller configured to determine a fault condition is occurring within the MVDC collection system, determine the location of the fault condition, and isolate the fault condition using at least one of the semiconductor switches and the DC/DC converters.
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公开(公告)号：US20180166881A1
公开(公告)日：2018-06-14
申请号：US15378679
申请日：2016-12-14
Applicant: ABB Schweiz AG
Inventor： Harish Suryanarayana , Hongrae Kim , Sara Ahmed , Peter Steimer , Philippe Maibach , Hans Krattiger , Silverio Alvarez , Paolo Casini , Jiuping Pan
CPC classification number: H02J3/383 , H02H7/268 , Y02E10/563
Abstract: Unique systems, methods, techniques and apparatuses of a power collection system are disclosed herein. One exemplary embodiment is an MVDC collection system coupled to a utility grid including a collection bus, a plurality of branches coupled to the collection bus, and a branch controller. Each of the plurality of branches include a semiconductor switch coupled to the collection bus, and a DC/DC converter coupled to the semiconductor switch and an LVDC power source. The branch controller configured to determine a fault condition is occurring within the MVDC collection system, determine the location of the fault condition, and isolate the fault condition using at least one of the semiconductor switches and the DC/DC converters.
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Patent Agency Ranking
公开(公告)号：US09819188B1
公开(公告)日：2017-11-14
申请号：US15358814
申请日：2016-11-22
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Li Qi , Hongbo Jiang
CPC classification number: H02J3/36 , H02M1/32 , H02M5/458 , H02M5/4585 , H02M7/483 , H02M2007/4835
Abstract: Unique systems, methods, techniques and apparatuses of power transmission systems are disclosed herein. One exemplary embodiment is an AC power transmission system converted for transmission of high voltage direct current (HVDC) power, the converted system comprising an AC cable system, a first converter system, a second converter system, and a control system. The first converter system is structured to receive and convert AC power to DC power and output the DC power. The second power converter system is structured to receive the DC power, convert the DC power to a second AC power, and output the second AC power. The control system is structured to receive power demand information, determine a reduced DC voltage less than a rated HVDC voltage, control the first converter system such that the DC power is controlled to the reduced voltage, and control the second power converter system to operate in an active power control mode.
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公开(公告)号：US09800054B2
公开(公告)日：2017-10-24
申请号：US14448294
申请日：2014-07-31
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Sandeep Bala
CPC classification number: H02J3/386 , H02J3/36 , H02J3/381 , H02J2001/008 , Y02E10/763 , Y02E60/60
Abstract: A DC connection system for renewable power generators includes a first monopole DC collection network, a second monopole DC collection network and a first bipole transmission system. The first monopole DC collection network aggregates positive-valued DC voltage outputs of a first cluster of renewable power generators onto a positive terminal of the first monopole DC collection network. The second monopole DC collection network aggregates negative-valued DC voltage outputs of a second cluster of renewable power generators onto a negative terminal of the second monopole DC collection network. The first bipole transmission system is coupled to the positive and negative terminals of the monopole DC collection networks, for transferring the aggregated power to a power grid substation.
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公开(公告)号：US09618586B2
公开(公告)日：2017-04-11
申请号：US14655298
申请日：2013-02-12
Applicant: ABB Schweiz AG
Inventor： Reynaldo Nuqui , Jiuping Pan , Jianping Wang
CPC classification number: G01R31/40 , G01R31/025 , H02H3/087 , H02H7/268
Abstract: A method to facilitate fault detection in the protected unit after connection to the at least a portion of the power system. A current is sensed in the protected unit during a plurality of different time periods. Compliance of at least one of the sensed currents with a respective first current criteria is determined based on a first current threshold value. On a condition that there is determined that at least one of the sensed currents comply with the respective first current criteria, a fault in the protected unit is detected.
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公开(公告)号：US11031773B2
公开(公告)日：2021-06-08
申请号：US16366280
申请日：2019-03-27
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Chunming Yuan , Xiaobo Yang , Ritwik Majumder , Bertil Berggren , Frans Dijkhuizen
Abstract: Unique systems, methods, techniques and apparatuses of a distribution system are disclosed. One exemplary embodiment is an alternating current (AC) distribution system including a first substation including a first transformer and a protective device; a first distribution network portion coupled to the first transformer; a second substation; a second distribution network portion; a DC interconnection system coupled between the first distribution network portion and the second distribution network portion; and a control system. The control system is structured to detect a fault in the first transformer or the transmission network, isolate the first distribution network from the fault, determine a set point of the DC interconnection system, and operate the DC interconnection system using the set point so as to transfer a portion of the MVAC from the second distribution network portion to the first distribution network portion.
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公开(公告)号：US20200343727A1
公开(公告)日：2020-10-29
申请号：US16366118
申请日：2019-03-27
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Chunming Yuan , Xiaobo Yang , Ritwik Majumder , Bertil Berggren , Frans Dijkhuizen , David Schaeffer
Abstract: Systems, methods, techniques and apparatuses of feeder line fault response are disclosed. One exemplary embodiment is a method for operating an alternating current (AC) distribution network including a first feeder line, a second feeder line, and a third feeder line. The method includes isolating a faulted portion of the first feeder line from a healthy portion of the first feeder line; closing a tie switch coupled between the healthy portion and the second feeder line in response to isolating the faulted portion from the healthy portion; determining the second feeder line is experiencing an overload condition after closing the tie switch; and transferring AC power including transferring AC power using a direct current (DC) interconnection system coupled to the third feeder line effective to remove the overload condition from the second feeder line.
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