SVG controller parameter identification method based on RTDS test data

A technology of parameter identification and test data, applied in the field of parameter identification, can solve the problems of difficulty in carrying out dynamic performance test, low efficiency, long test and rectification cycle, etc.

Inactive Publication Date: 2020-06-12
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +1
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Problems solved by technology

However, due to the limitation of some test conditions and methods on site, it is generally difficult to carry out all the dynamic performance tests required by th

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  • SVG controller parameter identification method based on RTDS test data
  • SVG controller parameter identification method based on RTDS test data
  • SVG controller parameter identification method based on RTDS test data

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Embodiment Construction

[0064] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0065] Such as figure 1 As shown, the SVG controller parameter identification method based on RTDS test data includes the following steps:

[0066] S1) Build an SVG controller-RTDS hardware-in-the-loop test platform;

[0067] S2) performing an in-loop test on the output responses of the SVG controller under various working conditions and various control modes to obtain control response output data;

[0068] S3) set up the simulation system identical with RTDS test environment in BPA software, carry out transient state simulation calculation to SVG controller;

[0069] S4) Based on the RTDS-in-the-loop test data, apply the automatic parameter identification algorithm to identify the control parameters of the SVG controller, compare the BPA simulation results with the RTDS-in-the-loop test results, and calculate the control error;

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Abstract

The invention discloses an SVG controller parameter identification method based on RTDS test data, and relates to a parameter identification method. At present, the efficiency is low due to the limitation of partial field test conditions and methods. The method comprises the following steps: carrying out in-loop test on SVG output responses of multiple control modes under multiple working conditions to obtain response output data; establishing a simulation system which is the same as the RTDS test environment in BPA software, and performing transient simulation calculation on the SVG controller; based on the RTDS in-loop test data, identifying the control parameters of the SVG controller by applying an automatic parameter identification algorithm, comparing the BPA simulation result with the RTDS in-loop test result, and calculating a control error; if the control error does not meet the requirement, performing iterative parameter correction by adopting a nonlinear least square identification method until an error index is met; and completing parameter identification work to obtain an SVG controller model and parameters. According to the technical scheme, simulation results are repeatable, parameters are easy to adjust, working conditions are easy to simulate, and test efficiency is high.

Description

technical field [0001] The invention relates to a parameter identification method, in particular to an SVG controller parameter identification method based on RTDS test data. Background technique [0002] The research and actual application of static var generator (static var generator, SVG) controllers require accurate and detailed dynamic model parameters and online debugging technology, lack of actual parameters and do not take into account the influence of power electronic devices and operating conditions It will lead to a serious discrepancy between the transient stability calculation results and the actual working conditions. [0003] In order to collect the response data of SVG when the power system is disturbed, the traditional data collection method generally adopts the field test method to test the control performance of the SVG device under different working conditions and collect the response data. However, due to the limitation of some test conditions and metho...

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Application Information

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IPC IPC(8): G05B23/02G01R31/00
CPCG01R31/00G05B23/0205
Inventor 马骏超肖秀林黄弘扬彭琰吴玉婷夏天华郭瑞鹏
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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