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A pss parameter tuning method considering the dynamic and stable requirements of multiple operating modes

A technology of dynamic stability and parameter tuning, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of low adaptability of PSS parameter tuning, and achieve the effect of adaptability in many ways

Active Publication Date: 2019-11-22
囯网河北省电力有限公司电力科学研究院 +2
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  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a PSS parameter tuning method that considers the dynamic stability requirements of multiple operating modes, solves the problem of low adaptability of PSS parameter tuning at present, and has the characteristics of high adaptability of PSS parameter tuning

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  • A pss parameter tuning method considering the dynamic and stable requirements of multiple operating modes
  • A pss parameter tuning method considering the dynamic and stable requirements of multiple operating modes
  • A pss parameter tuning method considering the dynamic and stable requirements of multiple operating modes

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Embodiment Construction

[0026] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0027] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0028] Such as figure 1 As shown, the logic flow chart of the PSS parameter tuning method considering the dynamic stability requirements of multiple operating modes provided by the embodiment of the present invention includes the following steps:

[0029] (1) Select t...

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Abstract

The invention is suitable for the technical field of power systems and provides a PSS parameter setting method of considering dynamic stabilization requirements of multiple operation modes. The methodcomprises the following steps of (1) selecting to-be-analyzed and researched grid operation modes; (2) searching an intrinsic oscillation mode for each to-be-analyzed operation mode; (3) defining underdamping coefficients of the oscillation modes; (4) defining load probability coefficients of the operation modes; (5) defining structure coefficients of a grid; (6) determining a phase frequency characteristic optimization target and constraint; (7) calculating additional weights; and (8) solving an optimization problem. According to the method, multiple operation modes of the grid and the dynamic stabilization requirements of the operation modes are considered to carry out PSS parameter setting of a unit in the PSS parameter setting process. The parameters set through the method have relatively good multimode adaptability, and the method has reference value to optimizing and setting of the PSS parameters.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a PSS parameter setting method considering the dynamic stability requirements of multiple operation modes. Background technique [0002] my country's long-distance, large-capacity power transmission situation is developing and forming, and the dynamic stability problems of power grids are becoming more and more prominent. Low-frequency oscillations caused by weak damping include local modes and regional modes, and the oscillation frequencies of different modes are generally between 0.1-2.0Hz. Although PSS (Power System Stabilization, power system stabilizer) has been generally installed in large-scale units (above 300MW), the dual-input PSS widely used at present also has the problem of being difficult to provide optimal damping in the whole frequency range. Optimizing the PSS performance considering the dynamic stability requirements of the power grid makes th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24G06F17/50
CPCG06F30/367H02J3/24H02J2203/20Y02E60/00
Inventor 刘翔宇胡文平李晓明王晓蔚胡雪凯孟凡超
Owner 囯网河北省电力有限公司电力科学研究院