Electrical quantity processing and network transmission method for intelligent transformer terminal

Abstract

The invention discloses an electrical quantity processing and network transmission method for an intelligent transformer terminal, and the method comprises the following steps: S1, enabling the intelligent transformer terminal to collect electrical quantity data, converting the electrical quantity data into a digital quantity and storing the digital quantity in a volatile memory; S2, judging whether the operation condition of a transformer is abnormal or not: switching to step S3 if the operation condition of the transformer is normal; S3, calculating the effective value of the electrical quantity, storing the effective value into an effective value region of a non-volatile memory, and extracting the maximum values at intervals of one minute, wherein the maximum values serve as the final data which is transmitted to a background data center; S4, transmitting the maximum values, serving as the final data, of the electrical quantity to the background data center; or switching to step S3' if the operation condition of the transformer is abnormal; S3': recording the time scalar at the abnormal moment; S4', cutting the related original sampling data from the volatile memory at step S1; S5', employing a light-duty compression algorithm for compression, and obtaining the compressed sampling data; S6', actively uploading the compressed sampling data to the background data center. The method exerts lower requirements for the calculation and processing capability of the intelligent transformer terminal, can timely find out and report the abnormality, is small in occupied bandwidth, and avoids the generation of a large amount of redundancy data.

Description

technical field [0001] The invention relates to the field of intellectualization of electrical equipment, in particular to an electrical quantity processing and network transmission method of an intelligent transformer terminal applied when resources are limited. Background technique [0002] The current electrical quantity processing method of the intelligent transformer terminal is to collect current and voltage data at a fixed sampling frequency, and obtain the "cooked data" feature quantities such as the effective value of the current and voltage through the Fourier algorithm, but only rely on the "cooked data" feature quantity, It is impossible to observe the transient change process of the transformer electrical quantity from the microscopic level. If the transformer recorder and other equipment are added to record the change process of the transformer data, it will not only require additional equipment costs, but will also lead to too much data and too high data densit...

AI Technical Summary

Problems solved by technology

[0002] The current electrical quantity processing method of the intelligent transformer terminal is to collect current and voltage data at a fixed sampling frequency, and obtain "cooked data" feature quantities such as current and voltage effective values ​​through the Fourier algorithm, but only rely on "cooked data" feature quantities, It is impossible to observe the transient change process of the transformer electrical quantity from the microscopic level. If the transformer recorder and other equipment are added to record the change process of the transformer data, it will not only require additional equipment costs, but will also lead to too much data and too high data density, which requires improving the system. The bandwidth increases the network transmission cost and data storage cost, therefore, it is necessary to make further improvements

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