Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Comprehensive control device of rotary electro magnetic electric energy quality

A power quality and comprehensive control technology, applied in harmonic reduction devices, AC networks to reduce harmonics/ripples, reactive power compensation, etc., and can solve problems such as reducing device reliability, low device overload capacity, and increasing device costs. , to achieve the effect of harmonic suppression, low cost, suppression and isolation of harmonics

Inactive Publication Date: 2009-02-11
HARBIN INST OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a rotating electromagnetic type power quality comprehensive control device, to overcome the power quality control device of the prior art because of the use of power semiconductor devices, on the one hand, the cost of the device is increased, and on the other hand, the reliability of the device is reduced. , and the overload capacity of the device is low, which will generate new harmonic interference defects

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
  • Comprehensive control device of rotary electro magnetic electric energy quality
  • Comprehensive control device of rotary electro magnetic electric energy quality
  • Comprehensive control device of rotary electro magnetic electric energy quality

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0009] Specific implementation mode one: the following combination figure 2 This embodiment will be specifically described. This embodiment is composed of No. 1 wound rotor induction motor 1, No. 2 wound rotor induction motor 2, No. 1 inverter 3, No. 2 inverter 4, rectifier 5, transformer 6 and main controller 7, The positive output end of the rectifier 5 is connected to the positive input end of the first inverter 3 and the positive input end of the second inverter 4, and the negative output end of the rectifier 5 is connected to the negative input end of the first inverter 3 and the second inverter 4. The negative input terminal of the inverter 4, the three-phase output terminal of the No. 1 inverter 3 is connected to the three-phase rotor winding of the No. The three-phase rotor winding of the linear rotor induction motor 2, the rotor of the No. 1 wound rotor induction motor 1 and the rotor of the No. 2 wound rotor induction motor 2 are fixed to rotate coaxially, and the ...

specific Embodiment approach 2

[0013] Specific implementation mode two: the following combination image 3 This embodiment will be specifically described. The difference between this embodiment and Embodiment 1 is that it also includes a clutch 9 and a prime mover 12. The engine shaft of the prime mover 12 is fixed on the rotor shaft end of the first wound rotor induction motor 1 or the second winding through the clutch 9. The rotor shaft end of the linear rotor induction motor 2 realizes coaxial rotation. When the power grid and the load need to continuously compensate active power, the rotating electromagnetic power quality comprehensive control device operates in the generator mode, and can use the prime mover to drive the rotor of the induction motor. By controlling the magnitude and frequency of the output current of the No. 1 inverter 3, Even if the speed of the prime mover changes, it can output active power with a constant frequency to the grid and loads to achieve uninterrupted power supply, or us...

specific Embodiment approach 3

[0014] Embodiment 3: The difference between this embodiment and Embodiment 2 is: the prime mover is a power device such as a gas engine, a wind engine or a water turbine engine. Other composition and connection methods are the same as those in Embodiment 2.

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 is a rotary electromagnetic electric energy quality synthetic control device, belonging to the field of electric machine and power electronics technique, and it comprises winding rotator induction electric machines 1 and 2, inverters 1 and 2, rectifier, transformer and master controller, where the output end of the rectifier is connected with those of the inverters and the output end of the first inverter is connected with the rotator winding of the first winding rotor induction electric machine and the output end of the second inverter is connected with the rotator winding of the second induction electric machine, and the rotors of the two induction electric machines are fixed and coaxially rotate, the stator winding of the second induction electric machine is connected with the primary side of the transformer and the controlled ends of the two inverters and the rectifier are separately connected with the output ends of the master controller.

Description

technical field [0001] The invention relates to a power quality control device, which belongs to the technical field of motors and power electronics. Background technique [0002] With the increasingly widespread application of power electronic devices, the harmonic pollution in the power grid is also becoming more and more serious. In addition, the power factor of many power electronic devices is very low, which also brings additional burden to the grid and affects the quality of power supply. Therefore, eliminating harmonic pollution and improving power factor has become a major issue in power electronics technology. [0003] Typical devices used to compensate reactive power include static var compensators and static var generators. Typical devices used to compensate harmonics are power active filters. A typical device used for power system power flow control is the unified power flow controller. The main structure of the unified power flow controller is as follows: fi...

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 Patents(China)
IPC IPC(8): H02J3/18H02J3/01
CPCY02E40/30Y02E40/40
Inventor 寇宝泉谢大纲李立毅
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com