Adjustable electric energy quality evaluation device for electrical specialty

Abstract

The invention discloses an adjustable electric energy quality assessment device for electrical specialty, which belongs to the technical field of electric energy quality assessment, and comprises a central processing sub-module, the output end of the central processing sub-module is bidirectionally connected with a detection unit, and the output end of the central processing sub-module is also bidirectionally connected with an economic loss assessment module. The input end of the economic loss evaluation module is connected with a conditioning unit. According to the invention, correct power grid quality data can be obtained through real-time correction, and meanwhile, after the regional quality differentiation module obtains the electric energy data calculated by the evaluation module, the regional quality in the region can be subjected to grade differentiation, so that the central processing sub-module can conveniently call the detection period of the detection unit through the grade; therefore, the detection time sequence judgment requirement can be met, the electric energy quality can be quickly judged through algorithm assistance, the professional electrical overhaul and maintenance discovery benefit is improved, the algorithm correction capacity is high, and the electric energy quality evaluation requirement of an electrical system is met.

Description

technical field [0001] The invention belongs to the technical field of electric energy quality evaluation, and in particular relates to an adjustable electric energy quality evaluation device for electrical profession. Background technique [0002] Electric energy refers to the ability to use electricity to do work in various forms. Electric energy is not only an economical, practical, clean, and easy-to-control and convertible energy form, but also a special product that the power sector provides to power users with quality guaranteed by the power generation, supply, and use parties. The quality of power supply is the basis of power evaluation. An important standard, power quality refers to the quality of electric energy in the power system. The ideal power should be a perfectly symmetrical sine wave. The main indicators to measure power quality include: voltage deviation, frequency deviation, voltage three-phase unbalance, and harmonics. [0003] The existing power quali...

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Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem of power quality assessment, staff often carry portable instruments for mobile detection, the detection efficiency is low, and it cannot meet the needs of real-time evaluation and detection. It is speculated that it is impossible to assist power grid maintenance personnel in judging power quality, so an adjustable power quality evaluation device for electrical professionals is proposed

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