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

Circuit for suppressing impact of switching of DC capacitive load on DC microgrid

A capacitive load and DC micro-grid technology, applied in the field of power supply, can solve the problems of large fluctuations in DC bus voltage, and achieve the effects of solving large voltage fluctuations, improving stability, and avoiding interference

Pending Publication Date: 2018-02-02
GREE ELECTRIC APPLIANCES INC
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a circuit for suppressing the impact of DC capacitive load switching on DC microgrid, DC-DC switching power supply and DC capacitive load, so as to at least solve the problem of DC microgrid caused by DC capacitive load switching in the prior art. The problem of large fluctuations in DC bus voltage

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
  • Circuit for suppressing impact of switching of DC capacitive load on DC microgrid
  • Circuit for suppressing impact of switching of DC capacitive load on DC microgrid
  • Circuit for suppressing impact of switching of DC capacitive load on DC microgrid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0037] In order to solve the problem that the switching of DC capacitive loads has an impact on the DC microgrid, affecting the stability of the microgrid system, and the switching of DC capacitive loads interferes with the normal operation of other loads on the same level of DC bus, in the present invention The embodiment provides a circuit for suppressing the impact of DC capacitive load switc...

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 circuit for suppressing the impact of the switching of a DC capacitive load on a DC microgrid. The circuit is applied to a soft start circuit for DC-DC switching power supply. The soft start circuit is connected to two ends of the DC capacitive load in parallel. When a switching switch carries out a switching operation, the soft start circuit can suppress current surge and voltage drop caused by the switching operation. Through the circuit, a problem of large DC bus voltage fluctuation of the DC microgrid caused by the switching of the DC capacitive load is solved, the stability of the DC micro-grid system is improved, and the interference of the switching of the DC capacitive load to the normal operation of other DC loads on a same-level DC bus is avoided.

Description

technical field [0001] The invention relates to the field of power supplies, in particular to a circuit for suppressing the impact of switching a DC capacitive load on a DC microgrid, a DC-DC switching power supply and a DC capacitive load. Background technique [0002] DC microgrid is a controllable microgrid that connects micro power sources through DC bus in the form of DC transmission. As a new type of power grid system, DC microgrid can provide high-quality electric energy for individual and business users. According to the different network forms, the DC microgrid can be divided into three types: single busbar structure, double busbar structure and double-layer busbar structure; DC microgrid. A reasonable control strategy is the basis for ensuring the stable operation of the DC microgrid system. In the DC microgrid, it is only necessary to ensure the stability of the bus voltage to meet the energy balance between the power supply side and the load side; that is, only ...

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 Applications(China)
IPC IPC(8): H02J1/14H02M3/156H02M1/34
CPCH02J1/14H02M1/34H02M3/156H02M1/0038H02M1/0058H02M3/1566Y02B70/10
Inventor 李萌蒋世用张雪芬冯重阳宋江喜
Owner GREE ELECTRIC APPLIANCES INC
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