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Title:
BALANCED CONDUCTANCE COMPENSATION-TYPE GLOBAL LINEAR SYMMETRY METHOD FOR OBTAINING POWER FLOW OF DIRECT-CURRENT POWER GRID
Document Type and Number:
WIPO Patent Application WO/2018/209480
Kind Code:
A1
Abstract:
A balanced conductance compensation-type global linear symmetry method for obtaining a power flow of a direct-current power grid comprises: first, according to a node load parameter and a node power supply parameter in a direct-current power grid, establishing a balanced conductance compensation-type global linear relation about a node injection power and a node translation voltage (101); then, establishing a balanced conductance compensation-type global linear symmetric model of a power flow in the direct-current power grid according to the balanced conductance compensation-type global linear relation and a power balance reference node number (102); by using an M-P inverse matrix, establishing a balanced conductance compensation-type global linear symmetric matrix relation about a whole-network node translation voltage and a non-power balanced node injection power according to the balanced conductance compensation-type global linear symmetric model (103); and finally, computing a voltage value of each node and a transmission power value of each branch in the direct-current power grid according to the balanced conductance compensation-type global linear symmetric matrix relation (104). The method has a small computing amount, does not have the convergence problem, and has a high precision when the operating state of the direct-current power grid changes in a great range.

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Inventors:
PENG JIANCHUN (CN)
PENG JIANGKAI (CN)
JIANG HUI (CN)
Application Number:
PCT/CN2017/084287
Publication Date:
November 22, 2018
Filing Date:
May 15, 2017
Export Citation:
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Assignee:
UNIV SHENZHEN (CN)
International Classes:
H02J1/00
Foreign References:
US20160372922A12016-12-22
CN102403724A2012-04-04
CN105745809A2016-07-06
CN103618311A2014-03-05
CN103956733A2014-07-30
Attorney, Agent or Firm:
SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE (CN)
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