Power quality regulating service system

A technology for power quality adjustment and service system, applied in AC network voltage adjustment, reactive power adjustment/elimination/compensation, AC network to reduce harmonics/ripple, etc., can solve voltage fluctuation, three-phase unbalance, flash Change and other problems, to achieve the effect of compensating voltage drop, reducing line loss and increasing transmission capacity

Inactive Publication Date: 2018-05-29
宁格朗电气股份有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] The power quality adjustment service system in the embodiment of the present invention includes a monitoring server, and an adjustment service module connected in parallel to the power grid through a reactor, the adjustment service module is connected to a wireless data transmission module, and communicates with the monitoring system through the wireless data transmission module Server communication; the adjustment service module includes: a three-phase detection module, which determines the cause of the three-phase imbalance if it detects that the power grid is unbalanced; a reactive power detection module determines whether the power grid is inductive or capacitive; harmonics The detection module detects the direction of the harmonic current in the power grid; the voltage detection module detects in real time whether the voltage has a single-phase or three-phase swell or sag within the rated range; the monitoring server includes: a three-phase adjustment module, accordi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/26H02J3/18H02J3/01H02J3/16
CPCH02J3/01H02J3/16H02J3/18H02J3/26Y02E40/30Y02E40/40Y02E40/50
Inventor 时兴强王胜费旭兵
Owner 宁格朗电气股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap