Autotransformer and method for variable ratio voltage regulation and current compensation

An autotransformer and current compensation technology, applied in the field of transformers, can solve problems such as high damage rate of switching devices, uncontrollable grid current and custom voltage, and difficulty in meeting smart grid requirements

Active Publication Date: 2022-06-07
XI AN JIAOTONG UNIV +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide an autotransformer and method for variable ratio voltage regulation and current compensation, which are used to solve the problem of grid current and self-defined voltage of traditional distribution transformers in the prior art. There is no controllability, it is difficult to meet the needs of smart grids, and the technical problems of high damage rate of switching devices

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
  • Autotransformer and method for variable ratio voltage regulation and current compensation
  • Autotransformer and method for variable ratio voltage regulation and current compensation
  • Autotransformer and method for variable ratio voltage regulation and current compensation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention; the terms "first", "second", "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise Clearly stipulated and defined, the terms "inst...

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 present invention provides an autotransformer and method for variable ratio voltage regulation and current compensation, because a bidirectional soft switch (composed of IGBTs and diodes in antiparallel connection) is used instead of a mechanical switch, and by changing the duty cycle of the PWM Duty ratio D and transformer ratio N 1 / N 2 , to achieve variable ratio control of the grid voltage. Furthermore, under the condition that the grid voltage fluctuates due to various reasons on the grid side, the voltage is maintained without distortion. The variable-ratio voltage-regulating current-compensated hybrid autotransformer based on active power filter is a new type of transformer, which combines traditional transformers with power electronics technology, has good controllability, and can be used to solve the current ubiquitous problems Power quality issues. The transformer can simultaneously realize the voltage compensation and current compensation functions of stepless voltage regulation on the voltage side.

Description

【Technical field】 [0001] The invention belongs to the technical field of transformers, and in particular relates to an autotransformer with variable ratio voltage regulation and current compensation and a method thereof. 【Background technique】 [0002] With the development of smart grid and the development of power electronics technology, on the one hand, more and more smart devices are introduced into the network, but along with it, it also causes many problems, such as voltage dips or swells and Power factor is reduced. In the distribution network, distribution transformers play a vital role. Traditional distribution transformers have no controllability in terms of grid current and custom voltage, and cannot meet the needs of smart grids. [0003] In addition, the existing distribution transformers often directly use PWM inverters on the primary side to modulate the voltage amplitude to control the grid voltage. However, the existing distribution transformers have higher...

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): H02J3/12H02J3/01H02P13/06
CPCH02J3/12H02J3/01H02P13/06Y02E40/20
Inventor 李大伟吴子豪王辰曦唐露甜梁得亮柳轶彬张立石蔡生亮高亚晨周堃
Owner XI AN JIAOTONG 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