Title:
SEQUENTIAL CONVEX PROGRAMMING-BASED OPTIMAL ENERGY FLOW CALCULATION METHOD FOR ELECTRICAL INTERCONNECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/015923
Kind Code:
A1
Abstract:
The present invention relates to the technical field of optimal energy of an electrical interconnection integrated energy system, and disclosed is a sequential convex programming-based optimal energy flow calculation method for an electrical interconnection system. The present invention comprises: before constructing a convex relaxation of a quadratic constraint of an optimal energy flow model, constructing a convex optimization part of the optimal energy flow model in an electrical interconnection integrated energy system according to the fuel cost of each fire point unit node and the gas supply cost of a natural gas source node, constructing the convex relaxation of the quadratic constraint of the optimal energy flow model in the electrical interconnection integrated energy system, and performing first-order Taylor expansion on a convex function at a relaxation solution to form an expansion; giving an accuracy requirement threshold of a nonconvex constraint, comparing the threshold with the size of the imbalance of the nonconvex constraint in the expansion; if the imbalance is greater than the threshold, then iterating the expansion into a solution model of the electrical interconnection integrated energy system until the imbalance is not greater than the threshold, so as to obtain the relaxation solution in the model.
Inventors:
LIU PENGXIANG (CN)
WU ZHI (CN)
LU HAI (CN)
GU WEI (CN)
LU YUPING (CN)
LUO ENBO (CN)
WANG DADA (CN)
SUN QIRUN (CN)
ZHANG HAO (CN)
WU ZHI (CN)
LU HAI (CN)
GU WEI (CN)
LU YUPING (CN)
LUO ENBO (CN)
WANG DADA (CN)
SUN QIRUN (CN)
ZHANG HAO (CN)
Application Number:
PCT/CN2022/085985
Publication Date:
February 16, 2023
Filing Date:
April 09, 2022
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
ELECTRIC POWER RES INSTITUTE OF YUNNAN POWER GRID CO LTD (CN)
YUNNAN POWER GRID CO LTD (CN)
ELECTRIC POWER RES INSTITUTE OF YUNNAN POWER GRID CO LTD (CN)
YUNNAN POWER GRID CO LTD (CN)
International Classes:
G06F30/20; G06F111/04
Foreign References:
| CN113627021A | 2021-11-09 | |||
| CN108846507A | 2018-11-20 | |||
| CN110729766A | 2020-01-24 | |||
| US20170184640A1 | 2017-06-29 |
Attorney, Agent or Firm:
BEIJING TONGHUI INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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