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公开(公告)号：US20150270799A1
公开(公告)日：2015-09-24
申请号：US14223318
申请日：2014-03-24
Applicant: The Texas A&M University System , Chevron U.S.A. Inc.
Inventor： Hamid Toliyat , Masoud Hajiaghajani , Vivek Meenakshi Sundaram , Nwamaka Nzeocha , Yateendra Deshpande , Mina Rahimian
IPC: H02P23/00
CPC classification number: H02P25/22 , H02P29/0241 , H02P29/60
Abstract: Controlling a multiphase electric motor by controlling the transmission of power to a first set of phases of a multiphase electric motor in accordance with a first operating configuration; detecting the presence of a shorted phase in the first set of phases while the first set of phases are being operated in accordance with the first operating configuration; and, responsive to detection of the shorted phase, adjusting control of the transmission of power to the multiphase electric motor such that power is transmitted to a second set of phases in accordance with a second operating configuration.
Abstract translation: 通过根据第一操作配置控制对多相电动机的第一组相的功率传输来控制多相电动机; 在所述第一组相位根据所述第一操作配置被操作时，检测所述第一组相位中的短路相位的存在; 并且响应于短路相的检测，调整对多相电动机的电力传输的控制，使得根据第二操作配置将电力传输到第二组相。
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Patent Agency Ranking
公开(公告)号：US09732589B1
公开(公告)日：2017-08-15
申请号：US15270376
申请日：2016-09-20
Applicant: Chevron U.S.A. Inc.
Inventor： Masoud Hajiaghajani , Daniel H. Broussard
CPC classification number: E21B36/04 , E21B17/01 , E21B43/2401 , E21B47/06 , E21B47/065 , H05B1/0244 , H05B6/06 , H05B6/108 , H05B2214/03
Abstract: Disclosed is a system and method for integrating power distribution for subsea boosting and direct electrical heating (DEH) of at least one subsea flowline. A subsea power cable located in a subsea environment is electrically connected to at least one power generator at a topsides location and delivers power to a subsea switchgear module which connects to subsea adjustable speed drives (ASD). At least one pump motor is electrically connected to at least one of the ASD, and at least one capacitor bank is electrically connected to at least one of the subsea ASD. A subsea pressure boosting pump is driven by the pump motor. At least one capacitor bank is electrically connected to at least one of the subsea ASD. At least one DEH is electrically connected to at least one of the subsea ASD in series with the at least one capacitor bank and in contact with the at least one subsea flowline. Power is distributed to the boosting and DEH equipment more efficiently and cost effectively.
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公开(公告)号：US09600612B2
公开(公告)日：2017-03-21
申请号：US13688843
申请日：2012-11-29
Applicant: Chevron U.S.A. Inc.
Inventor： Masoud Hajiaghajani , Steven Andre , Nwamaka Nzeocha
IPC: G06F17/50
CPC classification number: G06F17/5018 , G06F2217/16 , G06F2217/34 , G06F2217/80
Abstract: An interface is provided for a modeling application that determines required current required to deliver a target heat in a direct electrical heating system. The interface facilitates the input of input values implemented by the modeling application without requiring the configuration of an entire model. A technique for determining adjustments to required current between computational iterations reduces the number of iterations needed to converge on a solution.
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公开(公告)号：US09543879B2
公开(公告)日：2017-01-10
申请号：US14223318
申请日：2014-03-24
Applicant: Chevron U.S.A. Inc. , The Texas A&M University System
Inventor： Hamid Toliyat , Masoud Hajiaghajani , Vivek Meenakshi Sundaram , Nwamaka Nzeocha , Yateendra Deshpande , Mina Rahimian
CPC classification number: H02P25/22 , H02P29/0241 , H02P29/60
Abstract: Controlling a multiphase electric motor by controlling the transmission of power to a first set of phases of a multiphase electric motor in accordance with a first operating configuration; detecting the presence of a shorted phase in the first set of phases while the first set of phases are being operated in accordance with the first operating configuration; and, responsive to detection of the shorted phase, adjusting control of the transmission of power to the multiphase electric motor such that power is transmitted to a second set of phases in accordance with a second operating configuration.
Abstract translation: 通过根据第一操作配置控制对多相电动机的第一组相的功率传输来控制多相电动机; 在所述第一组相位根据所述第一操作配置被操作时，检测所述第一组相位中的短路相位的存在; 并且响应于短路相的检测，调整对多相电动机的电力传输的控制，使得根据第二操作配置将电力传输到第二组相。
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公开(公告)号：US20150270747A1
公开(公告)日：2015-09-24
申请号：US14223200
申请日：2014-03-24
Applicant: Chevron U.S.A. Inc. , THE TEXAS A&M UNIVERSITY SYSTEM
Inventor： Hamid Toliyat , Masoud Hajiaghajani , Vivek Meenakshi Sundaram , Yateendra Deshpande , Mina Rahimian , Nwamaka Nzeocha
CPC classification number: H02K3/28 , H02K5/132 , H02K11/33 , H02K2213/06 , H02P6/10 , H02P29/032
Abstract: A multiphase electric motor for a down-hole electrical submersible pump having a rotor having a first set of rotor voids filled or partially filled with permanent magnetic material. The electric motor having a stator with three or more stator slots, three or more stator teeth and three or more coils. Individual ones of the three or more coils are wound about at least one of the individual ones of the three or more stator teeth, and positioned such that adjacent coils are non-overlapping or partially overlapping to form a fractional slot per pole per phase winding. The electric motor having a power supply configured to provide power to the three or more phase windings formed by series or parallel combination of the three or more coils and a controller configured to control transmission of power through the three or more windings.
Abstract translation: 一种用于井下电潜泵的多相电动机，其具有转子，该转子具有填充或部分填充有永久磁性材料的第一组转子空隙。 电动机具有具有三个或更多个定子槽的定子，三个或更多个定子齿和三个或更多个线圈。 三个或更多个线圈中的单个线圈围绕三个或更多个定子齿中的单个线圈中的至少一个缠绕，并且定位成使得相邻线圈不重叠或部分重叠以在每相绕组上每极形成分数槽。 电动机具有被配置为向由三个或更多个线圈的串联或并联组合形成的三个或更多个相绕组提供电力的电源以及被配置为控制通过三个或更多个绕组的电力传输的控制器。
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公开(公告)号：US12030597B2
公开(公告)日：2024-07-09
申请号：US17382644
申请日：2021-07-22
Applicant: CHEVRON U.S.A. INC.
Inventor： Gerald Keith Sperling , Masoud Hajiaghajani
Abstract: A system for transmission of power offshore comprises two or more power stations operably connected with a high voltage cable system. The high voltage cable system may comprise a dynamic, dry type high voltage submarine cable of varying length configured to transmit at least about 45 megawatts of power. In some cases the dynamic, dry type high voltage submarine cable comprises a first end connected to an offshore power station and second end connected to a static submarine cable system which is connected to an onshore power station. The systems may facilitate transmission of power for applications such as compressing and/or pumping subsea natural gas in deep water.
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