Power quality regulating service system

Abstract

The invention relates to a power quality regulating service system, which comprises a monitoring server and a regulating service module connected to a power grid through an electric reactor in parallel, wherein the regulating service module is connected with a wireless data transmission module and communicates with the monitoring server through the wireless data transmission module; the regulatingservice module comprises a three-phase detection module, a reactive power detection module, a harmonic detection module and a voltage detection module; if three-phase imbalance of the power grid is detected, the cause of the three-phase imbalance is determined; the reactive power detection module is used for judging whether the power grid is in an inductive state or capacitive state; the harmonicdetection module is used for detecting the direction of harmonic current in the power grid; and the voltage detection module is used for detecting whether voltage is subjected to single-phase or three-phase sudden swell and drop within a rated range or not in real time. According to the power quality regulating service system, the defects of traditional capacitor compensation can be avoided, therequirements of power quality and energy-saving application of the power grid are met, the power quality is greatly improved and the line loss of a low-voltage distribution network can be greatly reduced.

Description

technical field [0001] The invention relates to a power quality adjustment service system, which belongs to the technical field of power management. Background technique [0002] Power quality refers to the quality of electrical energy in the power system. The ideal electrical energy should be a perfectly symmetrical sine wave. Several factors can cause the waveform to deviate from a symmetrical sine, thereby creating power quality problems. On the one hand, we study what influencing factors will lead to power quality problems, on the other hand, we study what problems these factors cause, and finally, we want to study how to eliminate these factors, so as to maximize the power close to a sine wave. In order to solve the problems existing in the development of the power system itself, DC transmission and FACTS technology have been continuously put into practical engineering applications. In addition, impact and fluctuating loads, such as electric arc furnaces, large rolli...

AI Technical Summary

Problems solved by technology

In addition, impact and fluctuating loads, such as electric arc furnaces, large rolling mills, electric locomotives, etc., will not only generate a large number of high-order harmonics during operation, but also generate voltage fluctuations, flicker, three-phase unbalance, etc. question