Filed maintenance strategy optimizing determination method for converter transformer

A technology of maintenance strategy and determination method, applied in the direction of measuring electrical variables, measuring devices, instruments, etc., can solve the problems of insufficient maintenance and excessive maintenance in maintenance strategies, so as to reduce the total cost of inspection and maintenance, reduce maintenance costs, and ensure reliability. Effect

Active Publication Date: 2014-04-30
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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AI Technical Summary

Problems solved by technology

[0006] Given that current maintenance strategies are either under-maintenance or over-maintenance

Method used

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  • Filed maintenance strategy optimizing determination method for converter transformer
  • Filed maintenance strategy optimizing determination method for converter transformer
  • Filed maintenance strategy optimizing determination method for converter transformer

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Experimental program
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Effect test

Embodiment

[0069] see figure 1 As shown, the present invention will be further described below in conjunction with a single ±500kV converter conversion example.

[0070] The acquisition of the preventive test data of the converter includes the dielectric loss tester with serial communication function to measure the dielectric loss of the converter transformer grid side bushing, valve side bushing, grid side bushing together with winding and valve side bushing together with winding The tangent value of the loss angle; the transformer DC resistance tester with serial port communication function measures the DC resistance of the converter network side winding DC resistance and the DC resistance of the valve side winding; the transformer oil chromatographic analyzer obtains the dissolved gas content in the converter oil; the insulation resistance meter Measure the insulation resistance of the converter transformer core and clamps. Among them, dielectric loss tester with serial communication...

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Abstract

The invention relates to a field maintenance strategy optimizing determination method converter transformer. The method comprises the following steps of: obtaining preventive test data of a converter transformer; and carrying out optimizing determination of a field maintenance strategy for the converter transformer, wherein the optimizing determination of field maintenance strategy for the converter transformer comprises the following steps of: determining the expected cost of a converter transformer maintenance scheme at time t, determining the expected risk cost of the converter transformer at time t, determining a predicted value f (X, t) of characteristic quantity at time t, calculating the probability P (Y, t) of various converter transformer fault types at time t according to f (X, t), determining expected fault type risk cost R(t) at time t, and determining a converter transformer maintenance strategy with high economical efficiency. The method provided by the invention can determine a maintenance strategy with the optimal economical efficiency according to converter transformer maintenance cost and fault types; and the determination method provided by the invention is applied to the determination of the maintenance strategy with the optimal economical efficiency for the converter transformer, reduces the total overhaul and maintenance cost of the converter transformer, and prolongs the use period of the converter transformer and has good social and economic benefits.

Description

technical field [0001] The patent of the present invention relates to the technical field of on-site maintenance of rheology converters, in particular to a method for optimizing and determining a strategy for on-site maintenance of rheology converters. Background technique [0002] With the rapid development of China's social economy and the continuous advancement of science and technology, the demand for electric energy in the whole society is increasing, so the scale of the power grid continues to expand. However, China's energy distribution and economic development are seriously asymmetrical. The eastern and southern economies have less energy, while the western region is rich in energy but relatively backward. Therefore, the effective transmission of energy from the western regions to the eastern and southern regions is conducive to the sustainable development of the national economy. develop. Due to the obvious advantages of high-voltage DC transmission technology in l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 杨方明邓军钱海陈禾彭翔夏谷林伍衡王竣张飚
Owner EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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