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Multi-core parallel batching method for power flow transfer ratio of operation mode of large-scaled electric power system

A large-scale power and power flow transfer technology, which is applied in data processing applications, information technology support systems, multi-programming devices, etc. Unaffected, guaranteed accuracy and reliability, and high solution efficiency

Active Publication Date: 2015-04-08
DALIAN UNIV OF TECH +1
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Problems solved by technology

[0005] At present, there are many theoretical studies and method verifications on power flow transfer, but the scale of the test system is small, and there is no batch processing and accurate solution tool for large-scale actual system operation, and there is no use of multi-core parallel technology to solve the power flow Related reports on transfer ratio

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  • Multi-core parallel batching method for power flow transfer ratio of operation mode of large-scaled electric power system
  • Multi-core parallel batching method for power flow transfer ratio of operation mode of large-scaled electric power system
  • Multi-core parallel batching method for power flow transfer ratio of operation mode of large-scaled electric power system

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Embodiment Construction

[0028] The present invention takes solving the power flow transfer ratio of the operation mode as the core goal, figure 1 Taking N-1 breaking faults in a simple 3-node and 3-branch network as an example, the calculation model of power flow transfer ratio is described in detail.

[0029] In the initial ground state: P L1 =p 1 , P L2 =p 2 , P L3 =p 3 ;

[0030] In fault state: P L1 =p 1 ', P L2 =p 2 ', P L3 =p 3 '=0;

[0031] Among them, P Li Indicates the active power flow value of the branch Li, p i represents the initial ground state before the fault, p i ' means after failure. When an N-1 breaking fault occurs in L3, the power flow transfer ratio of branches L1 and L2 is f L1 , f L2 Calculate according to the formula:

[0032] f L1 =|p 1 '-p 1 |÷p 3 ×100%

[0033] f L2 =|p 2 '-p 2 |÷p 3 ×100%

[0034] The present invention realizes the multi-core parallelism of the solution method. Parallel computing refers to decomposing a complex large-scale ta...

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Abstract

The invention belongs to the technical field of large power grid safety verification and computers and discloses a multi-core parallel batching method for a power flow transfer ratio of an operation mode of a large-scaled actual electric power system. On the basis of a large system analysis tool, integrity detection is carried out on the network topology of the system by a depth-first search algorithm, and the automatic recognition of power flow result reasonability is combined to realize the batching analysis of the power flow transfer ratio. Based on a parallel framework of Fork / Join, calculation tasks are recursively resolved in a divide-and-conquer mode according to failure setting, and the multi-core parallel batching rapid and accurate analysis of the power flow transfer ratio of the operation mode of the large-scaled actual electric power system is realized. The multi-core parallel batching method truly ensures the analysis precision and efficiency, is suitable for the rapid and accurate analysis of the power flow transfer ratio of the operation mode of the actual large-scaled system, can fully utilize computer multi-core resources and obtain excellent parallel performance without increasing extra investment, meets the safety verification analysis requirements of operation modes in different time scales, and has wide application prospects.

Description

technical field [0001] The present invention relates to the field of large-scale power grid security check and computer, and more specifically, relates to a large-scale power system operation mode power flow transfer ratio multi-core parallel batch processing method. technical background [0002] Power grid operation adheres to the policy of "safety first, prevention first". With the continuous growth of the national economy, the scale of the power system is becoming larger and larger, which puts forward higher requirements for the safety, stability and economic operation of the power grid. In recent years, large-scale power outages have occurred frequently at home and abroad, causing huge losses to society and the economy. For example: 1965 large-scale blackout in Northeast America, 1978 large-scale blackout in France, 8.14 large-scale blackout in the United States in 2003, large-scale blackout in Guangzhou in 1990, large-scale blackout in Taiwan in 1999, large-scale black...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/46G06F15/16G06F11/26G06Q50/06
CPCY04S10/50
Inventor 程春田罗彬苗树敏李刚吴琛杨浚文
Owner DALIAN UNIV OF TECH
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