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Static security analysis double-layer parallel method based on GPU-CUP heterogeneous computing platform

A static security analysis and computing platform technology, applied in the double-layer parallel field of static security analysis, can solve problems such as high power consumption

Active Publication Date: 2016-05-11
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Traditional online analysis is realized through CPU cluster parallelism, which consumes a lot of power

Method used

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  • Static security analysis double-layer parallel method based on GPU-CUP heterogeneous computing platform
  • Static security analysis double-layer parallel method based on GPU-CUP heterogeneous computing platform
  • Static security analysis double-layer parallel method based on GPU-CUP heterogeneous computing platform

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Embodiment Construction

[0093] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail:

[0094] Such as figure 1 As shown, a two-layer parallel method for static security analysis based on GPU-CPU heterogeneous computing platform,

[0095] GPU is an electronic circuit specially used to process graphics data and accelerate image output. In recent years, it has become more and more common to use GPU as a stream processor for general computing. GPUs can be used for a variety of parallel computing tasks, such as molecular dynamics calculations. They are well suited for calculations with very high volumes of data input and output. A large amount of data allows the GPU to fully utilize the GPU's vector computing unit or the structure of single instruction multiple data. GPU-based computing plays an increasing role in large-scale computing, and three of the ten most powerful supercomputers in the world take advantage of GPUs. GPU impl...

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Abstract

The invention relates to a static security analysis double-layer parallel method based on a GPU-CUP heterogeneous computing platform. The method comprises the following steps: initializing data of a power system, and setting K anticipated faults according to actual demands; extracting n anticipated faults, wherein the n belongs to the K; allocating multiple groups of threads for the n anticipated faults by utilizing a GPU; carrying out load flow calculation for each thread group under each anticipated fault, wherein each group of threads comprise one iteration in multiple groups of load flow calculation; checking the convergence condition of each example after each iteration is over; and if the load flow calculation converges under a certain thread group, extracting the next new anticipated fault, and executing the load flow calculation until finishing all of the fault calculation. The algorithm can realize synchronous calculation of the plurality of anticipated faults in the single GPU, and can carry out parallel processing on computation tasks corresponding to the nodes of in the same layer of an elimination tree, thereby preventing waste of GPU computing resources and improving utilization efficiency of the GPU.

Description

technical field [0001] The invention relates to the field of power grid simulation, in particular to a double-layer parallel method for static security analysis based on a GPU-CPU heterogeneous computing platform. Background technique [0002] Static security analysis is a basic tool in online analysis of power systems, which needs to check the operating state of the system after the system fails. In the power system, in order to avoid equipment damage caused by overload and voltage crossing, or cause a large-scale chain reaction power outage due to the outage of overloaded equipment under the protection of the system, it is very important to perform static safety analysis of the system online. Static security analysis is essentially the steady-state analysis process of power system operation, that is, the power flow problem, and does not involve the dynamic characteristics of components and the dynamic process of the power system. Static security online analysis sets fault...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J3/001H02J2203/20
Inventor 江涵陈德扬徐得超张星李亚楼
Owner CHINA ELECTRIC POWER RES INST
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