Parallel computation method for Newton power flow of large-scale electric power system

A large-scale electric power and parallel computing technology, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as the inability to realize coarse-grained parallel computing, the inability to popularize and apply power flow calculations, and the inability to find network segmentation methods to balance loads, etc.
CN101976835AActive Publication Date: 2011-02-16CHONGQING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHONGQING UNIV
Publication Date
2011-02-16

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Abstract

The invention discloses a parallel computation method for Newton power flow of a large-scale electric power system, which belongs to the technical field of safe analysis and computation of electric power systems. A modified equation set of the Newton power flow is resolved by using a computer according to a parallel cluster through a program in combination with parallelization technology for updating a Jacobian matrix by a generalized minimal residual method combined with a quasi-diagonal parallel preconditioner so as to realize parallelization of a power flow resolving process of the large-scale electric power system. The method does not need network partitioning in any form and has simple computation and high generality; a forward / backward sweeping dependency relationship does not exist inside an algorithm, and parallel efficiency and computation speed are high; and computation can be performed by the common parallel computer and the parallel cluster and the method is convenient to popularize and apply, and the like. The method can be applied to the parallel power flow computation of the electric power system and is particularly suitable for the parallel computation of the Newton power flow of a large-scale complex electric power system.
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Description

Technical field

[0001] The invention belongs to the technical field of power system safety analysis and calculation, and specifically relates to a Newtonian power flow parallel calculation method for large-scale power system online safety analysis. Background technique

[0002] The main task of power system dispatchers is to ensure the safe, stable, economical, and high-quality operation of the power system. With the development of the national economy and grid interconnection, higher requirements are put forward for the reliability and economy of power system operation, which makes dispatchers face huge challenges: on the one hand, the scale of the power grid continues to expand, the structure is more and more complex, and the operation mode Flexible, the consequences of multiple failures and cascading failures are becoming more and more serious. In this complex environment, it is becoming more and more difficult to ensure the safe operation of the power system; on the other han...

Claims

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