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Transient, dynamic stabilization aid decision-making automatic searching method based on parallel calculation

A parallel computing and automatic search technology, which is applied in the field of power systems, can solve problems such as inability to fully reflect the actual situation, potential safety hazards in the system, and slow computing speed, and achieve the effects of increasing speed, improving safety, and satisfying rapidity

Active Publication Date: 2009-05-20
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

[0011] (1) The basic data used is typical offline operation data, which is different from the actual data and cannot fully reflect the actual situation. Therefore, the calculation results used to guide the actual operation may lead to conservatism or aggressiveness, which may lead to system failure. Security risks
[0012] (2) The serial calculation method is adopted, and the calculation speed is relatively slow

Method used

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  • Transient, dynamic stabilization aid decision-making automatic searching method based on parallel calculation
  • Transient, dynamic stabilization aid decision-making automatic searching method based on parallel calculation

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Embodiment Construction

[0041] The technical scheme of the present invention mainly includes two parts, that is, an automatic search method for auxiliary adjustment control strategies and a parallel computing method.

[0042] 1. Auxiliary adjustment control strategy automatic search method

[0043] The basic method of manual analysis based on off-line stability calculation and analysis includes: mainly identifying the oscillatory unit group and oscillation center of the system after the transient state and dynamic generator power angle instability of the system, and determining the adjustable unit according to the swing and distribution of the unit. A combination of ways to determine feasible adjustments.

[0044] (1) Identify the oscillation center

[0045] Generally, there are multiple oscillator groups in the system, corresponding to multiple oscillation modes. When a system failure occurs, these oscillation modes will be excited, and one or several of them will become the main oscillation mode, ...

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Abstract

The invention relates to a method for automatically searching assistant decisions for transient and dynamic stability based on parallel computation. Based on power flow and stability data of a power grid and aimed at the problems of transient stability and dynamic stability, the method adopts large-scale parallel computation processing technology as well as human experience and a specific computation method to realize automatic identification of adjusting elements and automatic search of feasible adjustment methods, so as to achieve off-line transient stability analysis of an auxiliary electric power system and actual operation instruction.

Description

technical field [0001] The invention belongs to the field of power systems and relates to an automatic search method for auxiliary decision-making of transient and dynamic stability based on parallel computing. Background technique [0002] During the operation of the power system, it is necessary to maintain the safe and stable operation of the system. When a single fault occurs in the system, the system should generally remain stable; when a relatively serious fault occurs, it should remain stable after taking some measures. If the transient stability and dynamic stability problems of the system are predicted in advance and certain adjustments are made, the operating state of the system can be changed to avoid transient or dynamic instability after a fault occurs. Therefore, giving auxiliary adjustment measures in advance is of great significance to the actual operation of the system. [0003] In the existing technical solutions, the off-line calculation method is mainly ...

Claims

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Application Information

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IPC IPC(8): H02J3/00G06F17/00G06Q50/00
Inventor 侯俊贤许晓菲马世英张雪轩郑超宁文远宋新立谢旭王毅张哲
Owner CHINA ELECTRIC POWER RES INST
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