Convex distributed optimal power flow solving method for power system

A power system and optimal power flow technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as non-convex distributed optimization, reduce the risk of information congestion, reduce the amount of information transmission, and solve distribution problems. The effect of the optimization problem
CN112072668AActive Publication Date: 2020-12-11SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2020-12-11

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Abstract

The invention provides a convex distributed optimal power flow solving method for a power system. The method comprises the following steps: S1, dividing the power system into a plurality of independent regions according to the topological relation of a power system model, and adding boundary coupling condition constraints; S2, according to a penalty convex-concave process method, establishing a convex distributed optimal power flow model of the power system on the distributed framework in step S1; S3, establishing and solving the distributed optimal power flow problem on the basis of step S2 according to an alternating direction multiplier method; and S4, judging whether a preset convergence condition is met or not according to the partial solving output result. According to the method, anon-convex distributed optimal power flow problem is converted into a convex optimization problem, and the optimal power flow problem of each region is solved through independent distribution, so thatthe accuracy of the obtained solution is ensured, and the privacy of power information of each region is ensured.
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Description

technical field

[0001] The invention relates to the field of optimal power flow algorithms, in particular to a method for solving power system convex distributed optimal power flow. Background technique

[0002] Traditional power grids mainly use centralized algorithms for calculation in optimal dispatching, which requires a central computer to collect global data to perform centralized calculation and control. However, with the continuous expansion of the scale of the power grid and the development of the power market, the system operation of each sub-region of the power grid has a certain degree of privacy, which makes the centralized optimal dispatch no longer applicable. Distributed algorithms can solve the above-mentioned limitations of centralized algorithms, and can reduce the amount of information transmitted and the risk of information blocking. In recent years, more and more attention has been paid to power system applications.

[0003] The optimal power flow (OPF...

Claims

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