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Optimized operation method, device and system of multi-fed alternating-current and direct-current hybrid power grid

An AC-DC hybrid, power grid operation technology, applied in electrical components and other directions, can solve problems such as adverse effects of power grid operation, unbalanced load and resource distribution, and increased transmission power.

Active Publication Date: 2019-06-14
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the unbalanced distribution of load and resources in our country, the transmission power between different regions increases, which has a negative impact on the operation mode of the power grid

Method used

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  • Optimized operation method, device and system of multi-fed alternating-current and direct-current hybrid power grid
  • Optimized operation method, device and system of multi-fed alternating-current and direct-current hybrid power grid
  • Optimized operation method, device and system of multi-fed alternating-current and direct-current hybrid power grid

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Embodiment 1

[0037] refer to figure 1 The flow chart of the optimal operation method for the multi-infeed AC-DC hybrid power grid is shown. This method can be applied to electronic devices such as mobile phones and computers. The method specifically includes the following steps:

[0038] Step S102, obtaining the operation index of the power grid; the power grid is a multi-infeed AC / DC hybrid power grid to be optimized. Among them, the operating indicators include the average transmission number and the load rate of the main transformer in the district center. In the specific implementation, the power grid can be partitioned first, and then the operation index can be obtained. The operation index can include the load rate of the main transformer in each partition center and the average transmission betweenness of the partition tie line.

[0039]Step S104, constructing a power grid operation mode model based on the operating index and pre-built constraints; wherein, the constraints may incl...

Embodiment 2

[0079] This embodiment provides an optimal operation device for a multi-infeed AC / DC hybrid power grid, which is used to implement the optimal operation method for a multi-infeed AC / DC hybrid power grid provided in the above embodiments. Refer to as image 3 The structural block diagram of the optimal operation device for the multi-infeed AC-DC hybrid power grid shown, the device includes:

[0080] The index acquisition module 302 is used to obtain the operating index of the power grid; wherein, the operating index includes the average transmission number and the load rate of the main transformer in the sub-area center;

[0081] A model construction module 304, configured to construct a power grid operation mode model based on operation indicators and pre-built constraints;

[0082] The scheme determination module 306 is used to solve the power grid operation mode model to obtain the optimal operation scheme of the power grid.

[0083] The embodiment of the present invention p...

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Abstract

The invention provides an optimized operation method, device and system of a multi-fed alternating-current and direct-current hybrid power grid, and relates to the technical field of power grid dispatching. The method comprises the following steps of acquiring operation indexes of a power grid, wherein the operation indexes comprise average power transmission betweenness and main variable load rate of a partition center; constructing a power grid operation mode model based on the operation indexes and a pre-constructed constraint conditions, wherein the constraint conditions comprise generalized short circuit ratio constraint and short-circuit current constraint; and solving the power grid operation mode model to obtain the optimal operation scheme of the power grid. According to the method, the influence of the generalized short circuit ratio and the short-circuit current of the multi-fed alternating-current and direct-current hybrid power grid on the operation mode can be comprehensively considered, so that the operation mode of the power grid is effectively optimized.

Description

technical field [0001] The invention relates to the technical field of power grid dispatching, in particular to an optimal operation method, device and system for a multi-infeed AC-DC hybrid power grid. Background technique [0002] The rapid development of AC / DC hybrid technology presents an important feature of multi-DC drop point concentration. However, due to the unbalanced distribution of load and resources in our country, the increase of transmission power between different regions has caused adverse effects on the operation mode of the power grid. Contents of the invention [0003] In view of this, the object of the present invention is to provide an optimal operation method, device and system for a multi-infeed AC / DC hybrid power grid, so as to effectively optimize the operation mode of the power grid. [0004] In the first aspect, an embodiment of the present invention provides an optimal operation method for a multi-infeed AC / DC hybrid power grid, which includes...

Claims

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Application Information

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IPC IPC(8): H02J5/00
Inventor 袁炜灯刘树安黄安平钱峰王健华曾荣均刘俊磊陈君德程涛刘思捷李启亮刘沛林肖俊沙斌
Owner GUANGDONG POWER GRID CO LTD
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