公开(公告)号：US09903373B2

公开(公告)日：2018-02-27

申请号：US14946513

申请日：2015-11-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Nathaniel Benedict Hawes ,  Kum Kang Huh ,  David Allen Torrey ,  Di Pan ,  Tomas Sadilek

IPC: F04D15/00 ,  F04D13/08 ,  F04D13/16 ,  F04D29/22 ,  F04D29/08 ,  F04D29/42 ,  E21B43/12

CPC classification number: F04D15/0066 ,  E21B43/128 ,  F04D13/08 ,  F04D13/16 ,  F04D29/086 ,  F04D29/22 ,  F04D29/426

Abstract: An electric submersible pump (ESP) control system includes a primary variable frequency drive (VFD), a transformer, and a secondary VFD. The primary variable frequency drive (VFD) is configured to receive power from a power source and output a variable voltage and variable amplitude AC voltage. The transformer has a low voltage side and a high voltage side of the transformer. The primary VFD is coupled to the low voltage side. The transformer is configured to receive the AC voltage from the primary VFD and output a stepped up AC voltage. The secondary VFD is coupled to the high voltage side of the transformer, wherein the secondary VFD is configured to provide a supplemental voltage in addition to the stepped up AC voltage when the operational values of an electric motor exceed a threshold value.

公开(公告)号：US20170146015A1

公开(公告)日：2017-05-25

申请号：US14946513

申请日：2015-11-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Nathaniel Benedict Hawes ,  Kum Kang Huh ,  David Allen Torrey ,  Di Pan ,  Tomas Sadilek

IPC: F04D15/00 ,  F04D13/08 ,  F04D13/16 ,  E21B47/00 ,  F04D29/08 ,  F04D29/42 ,  E21B43/12 ,  F04D7/02 ,  F04D29/22

CPC classification number: F04D15/0066 ,  E21B43/128 ,  F04D13/08 ,  F04D13/16 ,  F04D29/086 ,  F04D29/22 ,  F04D29/426

Abstract: An electric submersible pump (ESP) control system includes a primary variable frequency drive (VFD), a transformer, and a secondary VFD. The primary variable frequency drive (VFD) is configured to receive power from a power source and output a variable voltage and variable amplitude AC voltage. The transformer has a low voltage side and a high voltage side of the transformer. The primary VFD is coupled to the low voltage side. The transformer is configured to receive the AC voltage from the primary VFD and output a stepped up AC voltage. The secondary VFD is coupled to the high voltage side of the transformer, wherein the secondary VFD is configured to provide a supplemental voltage in addition to the stepped up AC voltage when the operational values of an electric motor exceed a threshold value.