A security assessment method for active distribution network

A security assessment and distribution network technology, applied in resources, data processing applications, complex mathematical operations, etc., can solve problems such as output uncertainty

Active Publication Date: 2021-03-05
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, renewable energy is affected by natural conditions such as wind and light, and its output has great uncertainty. Moreover, the random charging behavior of electric vehicles will also bring new challenges to the safe and stable operation of active distribution networks.
At the same time, there are also risks in the coupling between the physical system and the information system of the active distribution network, and the damage caused by various network attacks to the active distribution network is also different.

Method used

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  • A security assessment method for active distribution network
  • A security assessment method for active distribution network
  • A security assessment method for active distribution network

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Embodiment Construction

[0064] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0065] An active distribution network security assessment method provided by an embodiment of the present invention includes:

[0066] Calculate the probability of instability of the active distribution network;

[0067] Establish a spatiotemporal model of an active distribution network;

[0068] Based on the probability of the instability of the active distribution network, the diffraction index, the focusing index, the sputtering i...

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Abstract

The invention discloses a method for evaluating the safety of an active distribution network, which includes: calculating the probability of instability of the active distribution network; establishing a space-time model of the active distribution network; based on the probability of instability of the active distribution network, through The space-time model establishes diffraction index, focusing index, sputtering index and global index, and evaluates the security of the active distribution network according to the above four indexes; the present invention can solve the problem of multiple uncertainties in the active distribution network. The safety assessment problem under the influence ensures the safe and stable operation of the active distribution network, and the evaluation of the invention is accurate, and is suitable for the safety assessment of the operation of many types of active distribution networks, and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of power grid evaluation, in particular to an active distribution network security evaluation method. Background technique [0002] At present, the active distribution network has become the focus of research in various countries as a means to realize the integrated operation of renewable energy and load. At the same time, electric vehicle charging piles are gradually becoming an important part of the active distribution network. However, renewable energy is affected by natural conditions such as wind and light, and its output has great uncertainty, and the random charging behavior of electric vehicles will also bring new challenges to the safe and stable operation of the active distribution network. . At the same time, there is also a risk between the coupling of the physical system and the information system of the active distribution network, and the damage caused by various network attacks to the activ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06F17/16G06F17/18G06Q50/06
CPCG06Q10/06393G06Q50/06G06F17/16G06F17/18
Inventor 岳东张智俊窦春霞丁孝华张腾飞李延满
Owner NANJING UNIV OF POSTS & TELECOMM
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