De-excitation system performance test analysing method and test analyzer thereof

A technology of test analysis and system performance, applied in the direction of instruments, measuring electronics, measuring devices, etc., can solve the problems that cannot fully and accurately reflect the performance of the demagnetization system, cannot meet the higher requirements for the safe operation of large-capacity generator sets, and achieve Guarantee the effect of safe and reliable operation

Inactive Publication Date: 2007-11-07
南京申瑞电力电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is: to overcome the deficiency that the existing test method and testing instrument of the demagnetization system cannot fully and accurately reflect the performance of the demagnetization system, and cannot meet the

Method used

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  • De-excitation system performance test analysing method and test analyzer thereof
  • De-excitation system performance test analysing method and test analyzer thereof
  • De-excitation system performance test analysing method and test analyzer thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] Example 1, as shown in Figure 5, the demagnetization switch voltage V1, the generator rotor winding voltage V2, the current V3 in the demagnetization resistance circuit (represented by the voltage on the shunt), and the demagnetization switch circuit in the generator demagnetization system The current V4 (represented by the voltage on the shunt), the current V5 in the generator rotor winding circuit (represented by the voltage on the shunt) and other signals are used as the input signal AI and connected to the input interface module 2, after isolation, filtering, and matching After pre-processing, such as correction, etc., it is sent to the signal conversion module 3 for A / D conversion and data acquisition, and then sent to the computer motherboard 1, and the operator controls the computer motherboard 1 through the input keyboard of the man-machine interface processor 4. Let the performance analysis module 7 perform energy calculations on the collected voltage and current d...

Example Embodiment

[0050] Embodiment 2, as shown in Figure 5, the generator rotor winding voltage V2, the current V3 in the demagnetization resistance circuit (represented by the voltage on the shunt), the current V4 in the demagnetization switch circuit (represented by the voltage on the shunt), The current V5 in the generator rotor winding circuit (represented by the voltage on the shunt), the generator three-phase stator voltage (V6, V7, V8) and other signals are used as the input signal AI to be connected to the input interface module 2 for isolation and filtering After pre-processing, matching, correction, etc., it is then sent to the signal conversion module 3 for A / D conversion and data acquisition, and then sent to the computer motherboard 1, and then the operator controls the computer host through the input keyboard of the man-machine interface processor 4 The board 1 allows the performance analysis module 7 to perform volt-ampere correlation characteristic analysis on the collected voltage...

Example Embodiment

[0051] Example 3, as shown in Figure 5, the generator rotor winding voltage V2, the current V3 in the demagnetization resistance circuit (represented by the voltage on the shunt), and the generator rotor winding current V5 (represented by the voltage on the shunt) The other signals are connected to the input interface module 2 as the input signal AI, after preprocessing such as isolation, filtering, matching, correction, etc., then sent to the signal conversion module 3 for A / D conversion and data acquisition, and then sent to the computer motherboard 1. The operator controls the main board of the computer through the input keyboard of the human-machine interface processor 4. Let the performance analysis module 7 perform spectral decomposition calculations on the collected voltage and current data of each loop, and then display it on the liquid crystal display terminal of the human-machine interface processor 5. The above-mentioned signal collected above will display the amplitude...

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Abstract

The invention relates to a remove-magnetic system performance test analysis method and its test analyzer, the each loop voltage electric current of the remove-magnetic system carries on the succession process analysis, the energy distribution analysis, the volt-ampere related characteristic analysis and the frequency spectrum characteristic analysis, and demonstrates the result, the test analyzer is composed of the computer mother board, the input connection module, the signal transformation module, the monitor and the man-machine connection processor, the communication connection module, the performance analysis module, and also the printer connection module. The invention completely provided a new remove-magnetic system tester with high accuracy, multi- parameters, maturity function, simple operation, and few maintenance quantities, which can fully and accurately reflected the remove-magnetic system performance fit and unfit, effectively safeguarded the power set the security reliable moving, and promoted the remove-magnetic system technology of our country generating set have a larger scale enhancement in design, manufacture, use and so on aspect level.

Description

technical field [0001] The invention relates to the test of the demagnetization system of a generating set, in particular to a performance test and analysis method of the demagnetization system and a test analyzer thereof. Background technique [0002] As an important part of the excitation system of the generator set, the de-excitation system is mainly used to quickly cut off the excitation of the generator when accidents such as short circuit and grounding occur inside and outside the generator, and quickly dissipate the magnetic field energy stored in the excitation winding. Consumed in the demagnetization circuit. Therefore, the main requirement for the generator set demagnetization system is to reliably and quickly consume the magnetic field energy stored in the generator to ensure the safety of the generator set under failure and accident conditions. With the rapid development of my country's electric power industry, the single-unit capacity of ...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 申明冯炜梅玉林
Owner 南京申瑞电力电子有限公司
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