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Generator parameter identification processing method and system thereof

A technology of parameter identification and processing methods, which is applied in electrical digital data processing, special data processing applications, instruments, etc., and can solve problems such as inaccurate identification results

Active Publication Date: 2012-07-18
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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Problems solved by technology

[0005] In order to solve the problem of inaccurate identification results of generator parameters by traditional generator parameter identification processing methods, the present invention provides a generator parameter identification processing method that can accurately identify generator parameters

Method used

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  • Generator parameter identification processing method and system thereof
  • Generator parameter identification processing method and system thereof
  • Generator parameter identification processing method and system thereof

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Embodiment Construction

[0042] see figure 1 , figure 1 It is a schematic flowchart of the generator parameter identification processing method of the present invention.

[0043] The generator parameter identification processing method includes the following steps:

[0044] Step S101, establishing a single generator infinite system model, and calculating the track sensitivity of the generator parameters to the measurement signal under different types of excitation signals;

[0045] In this step, firstly, the single-machine infinite system model is established by using the MATLAB program, such as figure 2As shown, the model of the generator adopts the 6-order generator model in the BPA program, and the parameters of the specific analysis generator include x d , x' d 、x″ d , T' d0 , T″ d0 、x q , x' q 、x″ q , T' q0 , T″ q0 There are 10 in total.

[0046] Then, the trajectory sensitivity of the generator parameters to the measurement signal under different excitation signals is calculated ac...

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Abstract

The invention provides a generator parameter identification processing method and a system thereof. The method includes the following steps that a generator standalone infinite system model is built, and trace sensitivity of generator parameters on measurement signals under different types of excitation signals is calculated; according to the trace sensitivity, corresponding types of the excitation signals are selected to be used as reference excitation signals corresponding to the generator parameters, and the strength and lasting time of the reference excitation signal are set; according to the set strength and the lasting time, the reference excitation signals are exerted on the generator; and according to disturbance data generated when the reference excitation signals are exerted on the generator, parameter identification is conducted on the generator parameters corresponding to the reference excitation signals. The generator parameter identification processing method can identify the generator parameters accurately and solve the problem that the traditional generator parameter identification processing method is inaccurate in identification results of the generator parameters.

Description

technical field [0001] The invention relates to the technical field of generator parameter identification processing, in particular to a generator parameter identification processing method and a generator parameter identification processing system. Background technique [0002] The capacity and scale of my country's power grid are increasing day by day, and the safety problems of power systems are becoming more and more prominent. The model and parameters of generators are important links in simulation calculations, and the inaccuracy of their parameters will directly affect the calculation results of power system stability. At present, the generator parameter data of most power plants in my country is incomplete, and the test parameters obtained by general actual measurement are different from the typical parameters or design parameters, and the deviation of individual data is as high as 20%. [0003] The domestic electric power operation and scientific research department...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCY02T10/82
Inventor 张俊峰郑竞宏陈迅朱守真韩睿
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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