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Practical dynamic safety domain boundary generation system and method based on space division

A technology of dynamic security domain and generation system, which is applied in the field of practical dynamic security domain boundary generation system, can solve the problems of heavy calculation burden and long time-consuming of fitting method, and achieve the effect of reducing the transient simulation calculation process.

Pending Publication Date: 2022-01-18
TIANJIN UNIV
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Problems solved by technology

This method has the advantage of accurate and reliable calculation results, but it still needs to accurately determine the stability of a large number of system operating points during the calculation process, resulting in a heavy computational burden and a long time-consuming for the fitting method

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  • Practical dynamic safety domain boundary generation system and method based on space division
  • Practical dynamic safety domain boundary generation system and method based on space division
  • Practical dynamic safety domain boundary generation system and method based on space division

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Embodiment Construction

[0058] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be discussed in detail below in conjunction with the accompanying drawings and examples. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this .

[0059] Such as figure 1 As shown, the present invention provides a practical dynamic security domain boundary generation method based on space division, comprising the following steps:

[0060] Step 1 Given system failure

[0061] Determine the fault location, type, and removal time.

[0062] Step 2 Determine the critical operating area

[0063] Since the critical points are concentrated in the critical operating area and surround a certain range near the boundary of the dynamic safety domain, the distance from a given reference point to the boundary is roughly equal to the distance between the reference point and the c...

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Abstract

The invention discloses a dynamic safety domain boundary generation system based on space division. The dynamic safety domain boundary generation system comprises: a critical operation region determination module for performing transient simulation calculation according to fault parameters provided by a power system to obtain a distance between a critical point and a reference point as a critical operation region including a dynamic safety domain boundary; a critical operation area stability judgment module is used for carrying out calculation and stability judgment on operation points in a critical operation area through transient stability simulation; a boundary fitting module is used for generating a practical dynamic safety domain boundary through a least square method; the invention provides a power system transient stability evaluation method based on space division, and the generation speed of a practical dynamic safety domain boundary can be further improved.

Description

technical field [0001] The invention belongs to the technical field of electric power system evaluation, and in particular relates to a practical dynamic safety domain boundary generation system and method based on space division. Background technique [0002] Dynamic safety domain is a powerful analysis tool in various optimization problems considering transient power angle stability constraints and node injection uncertainty, and has the advantage of simple calculation in power system safety monitoring and probabilistic safety assessment. This method is a new method developed based on the point-by-point method. It can evaluate the safety of the system operating state by analyzing the relative position of the operating point and the boundary of the safety domain, and provide information such as safety margin and optimal control to support decision-making. In particular, the dynamic safety region defined on the node injection space that satisfies transient power angle stabil...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F17/13G06F17/15G06F17/16G06Q10/06G06Q50/06
CPCG06F30/20G06F17/13G06F17/15G06F17/16G06Q10/0639G06Q50/06
Inventor 刘艳丽石雪靖王俊毅贾瑞芃
Owner TIANJIN UNIV
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