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A power system power flow calculation method based on cloud computing technology

A technology of power flow calculation and power system, applied in the computer field, can solve the problems of low efficiency of power flow calculation and achieve the effect of improving efficiency

Active Publication Date: 2020-12-08
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD QUZHOU POWER SUPPLY CO
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the technical problem of low efficiency of current power flow calculation

Method used

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  • A power system power flow calculation method based on cloud computing technology

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Embodiment 1

[0018] A power system power flow calculation method based on cloud computing technology, such as figure 1 As shown, this embodiment includes the following steps: A) importing power system data, and dividing the power system into several regions according to geographical regions. There are a small number of tie lines between the grid areas, and the areas are divided on the tie lines.

[0019] B) Divide each area into several subnets according to the voltage level. Each area is divided into subnets according to different voltage levels, and there are clear voltage change nodes between subnets. The nodes that input power to the sub-network are used as power sources, and the nodes that obtain power from the sub-network are used as loads.

[0020] C) According to the order of the voltage level of the subnet from low to high, the power flow calculation of each subnet is taken as a task and calculated by the cloud computing system. For each subnet, the topologically connected area...

Embodiment 2

[0024] On the basis of Embodiment 1, this embodiment further improves the generation and distribution of cloud computing tasks in step C, specifically:

[0025] C’) The power flow calculation of each subnet is taken as a task in order of the voltage level of the subnet from low to high, and is calculated by the cloud computing system. For each subnet, the topologically connected areas are used as separate power flow calculation tasks, so that each subnet is divided into several separate power flow calculation tasks, and the individual power flow calculation tasks, as the tasks of the cloud computing system, will belong to the same subnet The tasks are input to the cloud computing system at the same time or next to the input for calculation. When the task is input into the cloud computing system for calculation, the task is assigned to several server nodes of the cloud computing system, so that the assigned server nodes can basically complete the calculation of the task at the ...

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Abstract

The invention relates to the field of computer technology, and particularly to a power system power flow calculation method based on cloud computing technology. The method includes the following steps: A) importing power system data, and dividing a power system into multiple areas; B) obtaining multiple sub-grids by dividing according to voltage levels; C) taking power flow calculation of each sub-grid in turn as a task; D) verifying sub-grids in the area, entering a step E if verification is successful, and otherwise, changing a power flow calculation method, and returning to the step C; andE) carrying out joint solving verification on all the areas, completing power flow calculation of the power system if verification is successful, and changing a power flow calculation method to re-carry out power flow calculation if verification is unsuccessful. Substantial effects of the power system power flow calculation method are that power flow calculation of the power grids of all the areascan be carried out in parallel through a manner of cloud computing, and efficiency of power flow calculation is greatly improved.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a power system power flow calculation method based on cloud computing technology. Background technique [0002] Cloud computing (cloud computing) is a kind of distributed computing, which refers to decomposing a huge data computing processing program into countless small programs through the network "cloud", and then processing and analyzing these programs through a system composed of multiple servers. The applet gets the result and returns it to the user. In the early days of cloud computing, simply put, it was simple distributed computing, solving task distribution, and merging calculation results. Therefore, cloud computing is also called grid computing. Through this technology, the processing of tens of thousands of data can be completed in a very short period of time, so as to achieve powerful network services. Power flow calculation is a term in electricity science, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/06
CPCH02J3/06
Inventor 黄宏和潘艳红丁萍刚周俊郑晓云毛亚明姜正德黄炎阶
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD QUZHOU POWER SUPPLY CO
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