Serial electric energy quality controller

A power quality and controller technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as voltage imbalance, voltage sag, voltage fluctuation, etc., and achieve easy maintenance, high reliability and efficiency, and good The effect of the compensating effect

Inactive Publication Date: 2005-03-16
SIEYUAN QINGNENG ELECTRICAL & ELECTRONICS
View PDF0 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the defects in the prior art, and propose a method that can solve voltage sag, voltage swell, power supply interrup

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Serial electric energy quality controller
  • Serial electric energy quality controller
  • Serial electric energy quality controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 It is the working principle diagram of series power quality controller (DVR). Such as figure 1 as shown, figure 1 The upper part is the working principle diagram of the connection between the series power quality controller and the system and load. The series power quality controller here is mainly to regulate the voltage, so the series power quality controller can also be called a series dynamic voltage regulator (Dynamic Voltage Regulator, DVR for short) or a dynamic voltage restorer (Dynamic Voltage Restorer). figure 1 The lower part is the voltage signal waveform diagram of each part of the series power quality controller connected to the system and load. The series-type power quality control device is connected in series between the system and the sensitive load. When the detection unit detects that the voltage waveform of the power supply system is distorted, the control unit calculates the error between the actual voltage and the rated voltage of the ...

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 discloses a series electric energy quality controller, including: an electric energy detecting unit, a control unit, an offset voltage generator, a DC unit, a connect unit and a protective unit It is equivalent to a voltage source in series with the distribution wire of a system to eliminate the effect of system voltage distortion on a load, and is a load-oriented electric energy quality improving device. It is connected in series between the system and load, and quickly outputs an offset voltage as the voltage waveform is distorted, so as to avoid the sensitive load from being affected by the system voltage fluctuation and assure the power supply quality for the sensitive load. It can effectively solve the quality problems of dynamic voltage, like voltage drop, etc., and also give consideration to the quality problems of stable voltage, such as system voltage harmonics, voltage fluctuation, three-phase imbalance, etc..

Description

technical field [0001] The invention belongs to the electric power electronic technology of electric power system, more specifically relates to the control device between AC power supply and AC power receiving in the electric power system, especially relates to the series type electric energy quality control device. Background technique [0002] With the development of modern science and technology, power users' requirements for power quality are also constantly improving. For modern enterprises such as iron and steel, chemical industry, metallurgy, railway and machinery manufacturing, the widespread use of advanced technology may cause devastating effects on power supply system failure or deterioration of power quality. Voltage fluctuations, flicker, and three-phase unbalance are becoming more and more serious. These adverse effects on the power grid will not only reduce the safety of the power supply and consumption equipment itself, but also seriously weaken and interfere...

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
IPC IPC(8): H02J3/00
Inventor 姜齐荣沈斐虞苍璧傅俊寅季建辉
Owner SIEYUAN QINGNENG ELECTRICAL & ELECTRONICS
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