Method for establishing simulation model of excitation system

A technology of excitation system and simulation model, applied in the direction of design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as consuming a lot of time, reducing the efficiency and accuracy of simulation verification calculations, and the impact of calculation accuracy

Active Publication Date: 2017-02-08
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology

Since this is the first simulation modeling of Mitsubishi MEC7000, it is necessary to continuously try to correct the parameters to make the simulated step response curve consistent with the field measured curve. Every time it is corrected, it is necessary to re-ch...

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  • Method for establishing simulation model of excitation system
  • Method for establishing simulation model of excitation system
  • Method for establishing simulation model of excitation system

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] The on-site measurement model of Mitsubishi MEC7000 excitation system is used for BPA simulation. The FM type brushless excitation system is used as the equivalent model. In the equivalent conversion, KE is included in the model, and the field measurement model of Mitsubishi MEC7000 excitation system is respectively figure 1 The main exciter and uncontrollable power rectifier module b and BPA brushless excitation system model figure 2 The main exciter and the uncontrollable power rectifier module d are converted, and the obtained conversion models are as follows image 3 with Figure 4 shown.

[0039] Establish the equivalent transfer function of the conversion diagram of the excitation system model, let KB1=K2 / Rfe, the converted model of the main exciter and the uncontrollable power rectifier model of the field measurement ...

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Abstract

The invention relates to the field of modeling and simulation of excitation systems, and especially relates to a method for establishing a simulation model of an excitation system, that is, using a BPA simulation tool to build the simulation model which is basically consistent with the functions of a field actual measurement model. After model transformation, numerical values of KB and KH are within the limits of the values, and after parameter transformation, a BPA simulation tool is used to carry out simulation checking, and test the functions of the built simulation model. Through checking, errors of various key data indexes are within a prescribed range of excitation modeling guidelines, so that the built simulation model of the excitation system can be used for daily power grid stability analysis. The method for establishing the simulation model of the excitation system provided by the invention reduces the value of KB and increases the value of KH under the condition of guaranteeing the simulation effect; and the method for establishing the model is adopted innovatively, BPA data file input format constraints are solved, and simulation modeling work is well completed.

Description

technical field [0001] The invention relates to the field of modeling and simulation of an excitation system, in particular to a method for establishing a simulation model of an excitation system. Background technique [0002] A large number of theoretical analysis and practical experience have proved that among the measures taken to improve the stability of the power system, the excitation control of the generator has an obvious effect and is an economical and effective means. In order to complete the excitation test more efficiently and accurately, the simulation modeling of the three-machine brushless excitation system MEC7000 has been completed for the first time in China. The on-site measurement model of the Mitsubishi MEC7000 excitation system is as follows: figure 1 As shown, in the BPA simulation, according to the comparative verification, the FM type brushless excitation system model is used as the equivalent model for simulation calculation. The model diagram is sh...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 刘光时窦骞孙志媛张翌晖周柯刘默斯王晓明
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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