Supercharge Your Innovation With Domain-Expert AI Agents!

A method for suppressing secondary ripple current of DC power supply through control

A technology of DC power supply and secondary ripple, applied in AC network to reduce harmonic/ripple, AC network circuit, electrical components, etc., can solve the problems of power density decrease, volume increase, cost increase, etc., to eliminate Effects of voltage error, increased power density, and improved efficiency

Active Publication Date: 2022-07-01
XIAMEN UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control method does not require additional circuit devices, can suppress the secondary ripple current to less than 2%, and solves the problems of reduced efficiency, increased volume, increased cost, and reduced power density caused by adding additional devices in the traditional solution. , and has a fast dynamic response speed

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
  • A method for suppressing secondary ripple current of DC power supply through control
  • A method for suppressing secondary ripple current of DC power supply through control
  • A method for suppressing secondary ripple current of DC power supply through control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative efforts, fall within the protection scope of the present invention.

[0039] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top / bottom", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated de...

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 proposes a method for realizing the suppression of the secondary ripple current of the DC power supply through control. This control method is applicable to a cascaded system consisting of a DC-DC circuit with an LC or LC-like structure and an inverter circuit. The traditional ripple suppression method needs to add a ripple suppression circuit between the DC-DC circuit and the inverter circuit to suppress the secondary current ripple. However, the addition of the secondary ripple suppression circuit will cause problems such as increased system cost, complex control, reduced system power density, and instability between systems. The control method of the secondary current ripple suppression proposed by the present invention forms feedback control by collecting the inductor current and the output voltage, so as to realize the suppression of the secondary ripple current. cost, simplify the system design and increase the power density of the system.

Description

technical field [0001] The invention relates to the field of power supply ripple suppression, in particular to a method for realizing the suppression of secondary ripple current of a DC power supply through control. Background technique [0002] With the development of power electronics technology, the cascade system composed of DC power supply and single-phase inverter is widely used in residential, photovoltaic power generation grid-connected, industrial power consumption and other systems. It is composed of DC / AC circuit. Among them, with the rapid development and promotion of new energy technology, the photovoltaic inverter system composed of DC / DC circuit and H-bridge inverter circuit has also entered a stage of rapid development. The system has the characteristics of modular design, which greatly shortens the research and development time of the power conversion system, reduces the research and development cost, and has broad application prospects. [0003] When the ...

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): H02M1/14H02J3/01H02J3/38
CPCH02M1/14H02J3/01H02J3/381Y02E40/40
Inventor 何良宗周鸿彦
Owner XIAMEN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com