Electric energy mass and powerless compensation combination controller

A comprehensive controller and power quality technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, etc., can solve problems such as AC voltage sag, and achieve the effect of improving voltage level, ensuring normal operation, and high reliability

Inactive Publication Date: 2005-03-23
TSINGHUA UNIV
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The comprehensive controller of power quality and reactive power compensation designed in series and parallel not only solves the problem of AC volta...

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
  • Electric energy mass and powerless compensation combination controller
  • Electric energy mass and powerless compensation combination controller
  • Electric energy mass and powerless compensation combination controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] figure 1 The virtual frame is the design schematic diagram of the comprehensive controller 20 for power quality and reactive power compensation. During the compensation period, the energy required by each phase is provided by the energy storage battery 7, 8, and 9 respectively, and each phase is compensated independently, which prolongs the life of the battery. , under normal operation, the series thyristor and the inverter are connected in parallel to supply power to the load, which has high reliability and high efficiency;

[0035] Such as figure 1 As shown in the virtual frame 20, the power quality and reactive power compensation integrated controller 20 is composed of series thyristors 1, 2, 3, inverters 4, 5, 6, energy storage batteries 7, 8, 9, and an AC filter inductor 10 , 12, 14, AC filter capacitor 11, 13, 15, parallel complementary thyristor 16, parallel complementary capacitor 17, parallel sub-complementary thyristor 18, parallel sub-complementary capacitor...

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 quality of power supply and the reactive compensation combination controller belongs to the field of the dynamic voltage compensation and reactive compensation technology of the power system. It adopts the design of the series-parallel connection, connects with the silicon controlled in series and with the inverter parallelly through the measure and control circuit centered on the DSP in normal working and increases the reliability and efficiency. When the voltage falls, the inverter will send out the corresponding sine wave to compensate the needed quantity of the voltage and thus can guarantee the failure free operation of users' equipments. When users' reactive demand is excess or negative and affects the level of the voltage, it will devote the shunt-wound general-patching capacitor in stages or get rid of it to compensate the reactive. When the interphase reactive is not balanced, solve the problem of the imbalanced interphase reactive through the casting control to the shunt-wound capacitor. It also solves the problems of fall of the alternating voltage and the reactive compensation in the power system and improves the level of the voltage.

Description

technical field [0001] A comprehensive controller for power quality and reactive power compensation belongs to the technical field of power system dynamic voltage compensation and reactive power compensation. Background technique [0002] The more developed the economy, the higher the requirements for power quality level. Power quality problems will not only bring great economic losses to the industry, such as shutdown and restart leading to increased production costs, damage to sensitive equipment, scrapping semi-finished products, and reducing product quality. etc., and will also endanger the normal operation of the power system. According to the research of the American Electric Power Research Institute (EPRI), power quality problems cause the US industry to lose 30 billion US dollars in data, materials and productivity every year. With the development of my country's high-tech industry With rapid development, the requirements for power quality level are getting higher and ...

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): H02J3/18
CPCY02E40/30
Inventor 孙元章李国杰黎雄
Owner TSINGHUA UNIV
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