Invention Grant
- Patent Title: Method and device for obtaining three-phase power flow of power distribution network with ungrounded transformers
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Application No.: US14292022Application Date: 2014-05-30
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Publication No.: US09625929B2Publication Date: 2017-04-18
- Inventor: Wenchuan Wu , Boming Zhang , Qing Zou , Hongbin Sun , Fei Li , Qinglai Guo , Yi Liu , Yajing Gao , Hongjia Miao , Yuan Ji
- Applicant: Tsinghua University , Guizhou Power Grid Information & Telecommunication Co., Ltd.
- Applicant Address: CN CN
- Assignee: Tsinghua University,Guizhou Power Grid Information & Telecommunication Co., Ltd.
- Current Assignee: Tsinghua University,Guizhou Power Grid Information & Telecommunication Co., Ltd.
- Current Assignee Address: CN CN
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: CN201410012852 20140110
- Main IPC: G06F7/32
- IPC: G06F7/32 ; G05F1/66 ; G01R19/25 ; G01R27/02 ; G01R31/02
Abstract:
A method for obtaining a three-phase power flow of a power distribution network and a device for obtaining a three-phase power flow of a power distribution network are provided. The method includes steps of: selecting a three-phase power transformer in the power distribution network and configuring a secondary side of the three-phase power transformer with an ungrounded neutral connection, such that the three-phase power transformer satisfies a preset voltage-current relationship; adding a constraint condition to the preset voltage-current relationship to correct a three-phase admittance matrix of the three-phase power transformer; and applying the three-phase admittance matrix to a preset algorithm to obtain a three-phase power flow of the power distribution network.
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