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Feature value analysis system for small-interference stability of large-scale power system

A technology of eigenvalue analysis and large-scale electric power, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of not integrating small disturbance stability eigenvalue analysis system, etc., to eliminate displacement fuzzy phenomenon, save Calculation time, effect of reduced number of times

Inactive Publication Date: 2014-10-08
SHANGHAI JIAO TONG UNIV +1
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Problems solved by technology

[0008] However, unlike IRAM, which has an open source mathematical library ARPACK, since JDM only has sample programs under Matlab, JDM has always been common in academic research, and has not been integrated into any small-disturbance stability eigenvalue analysis system for large-scale power systems.

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  • Feature value analysis system for small-interference stability of large-scale power system
  • Feature value analysis system for small-interference stability of large-scale power system
  • Feature value analysis system for small-interference stability of large-scale power system

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Embodiment 1

[0032] Such as figure 1 As shown, this embodiment includes: a BPA data interface module for realizing seamless read and write operations of BPA data files, a sparse matrix calculation module for realizing sparse matrix correlation processing in small disturbance stability eigenvalue analysis, and power flow calculation module, system modeling and its linearization module, state matrix calculation module, all eigenvalue calculation engine modules, partial eigenvalue calculation engine modules and oscillation mode extraction and analysis modules, in which:

[0033] The BPA data interface module: because the domestic power grid enterprises tend to use the BPA file format to store actual power grid data, for this reason, based on the idea of ​​object-oriented programming, a BPA data interface module with a dynamic link library is developed using C++. This module not only has the seamless reading and writing function of BPA data files, but also provides APIs for other modules. The...

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Abstract

The invention provides a feature value analysis system for small-interference stability of a large-scale power system, and belongs to the technical field of power system simulation and analysis. The feature value analysis system comprises a BPA data interface module for achieving seamless read-write operation of a BPA data file, a sparse matrix calculation module for achieving relevant sparse matrix processing in small-interference stability feature value analysis, a power flow calculation module, a system modeling and linearization module, a state matrix calculation module, an all feature value calculation engine module, a partial feature value calculation engine module and an oscillation mode extraction and analysis module. Omni-bearing and missing-free feature value simulation analysis for small-interference stability of an actual large-scale power grid is achieved by the adoption of TTQRE and IRAM and JDM with multiple calculation schemes.

Description

technical field [0001] The invention relates to a system in the technical field of power system simulation and analysis, in particular to an eigenvalue analysis system for small-disturbance stability of a large-scale power system using three different eigenvalue algorithms. Background technique [0002] Small-disturbance stability of power system refers to the ability to continue to maintain synchronous operation when the power grid experiences a small disturbance. The small disturbance stability of power system generally adopts Lyapunov's first method as the judging standard. Lyapunov's first method points out that if the state matrix after linearization of the system does not have zero or positive real part eigenvalues, then the current system can be judged to be stable with small disturbances. Therefore, in the power system, eigenvalue calculation has always been used to realize the identification of low-frequency power oscillation modes, the assembly site selection and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 赵文恺严正张逸飞曹路李建华周挺辉范翔
Owner SHANGHAI JIAO TONG UNIV
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