Electrical energy quality monitoring and evaluating system

Abstract

The invention discloses an electrical energy quality monitoring and evaluating system, which comprises a plurality of electrical energy monitors, a communication network, a plurality of enterprise service platforms and a government service platform, wherein the enterprise electrical energy monitors are connected to the enterprise service platforms through the communication network, and the independent electrical energy monitors and the enterprise service platforms are connected with the government service platform through the communication network; the enterprise service platforms are used for receiving basic electric power parameters acquired by the enterprise electrical energy monitors at monitoring points inside the enterprises, displaying the change conditions of the electric power parameters of enterprise distribution networks, and transmitting data to the government service platform at certain time intervals; and the government service platform is used for receiving the electric power parameters of the enterprise distribution networks transmitted by the enterprise service platforms and the parameters transmitted by the independent electrical energy monitors at the monitoring points in the regional distribution networks, and performing energy consumption audit, transient and stable electrical energy quality analysis, electrical energy quality level evaluation, harm extent evaluation and evaluation of providing the corresponding electrical energy quality improvement scheme and electrical energy quality improvement effect.

Description

technical field [0001] The invention relates to the field of electric energy management, in particular to a power quality monitoring and evaluation system for factories, mines, enterprises, and administrative regional government power management departments. Functions such as state power quality analysis, power quality grade assessment, hazard degree assessment, and corresponding power quality improvement schemes and operation effect evaluation of power quality equipment. Background technique [0002] In modern industrialized society, electric energy has become an indispensable basic energy source. With the increase of the number of electric equipment connected to the power grid and the development of power load diversity, the power quality in the power grid is affected by the electric equipment. At the same time, various control systems, computer devices, intelligent production lines of electronic products and other power quality sensitive equipment have higher and higher r...

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Problems solved by technology

[0003] With the increasing number of electrical equipment with high sensitivity to power quality such as integrated chip manufacturing lines, computer systems in banks and securities trading centers, dynamic voltage rises, pulse shocks, voltage drops and instantaneous power supply interruptions last for milliseconds The impact of transient power quality on power quality sensitive equipment has attracted increasing attention, but the existing power monitoring and analysis systems generally still focus on the long-lasting steady-state power quality analysis, even if there are some called dynamic power In the quality monitoring system, the object of analysis is still the index parameters of steady-state power quality, but the online monitoring function is added.

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