Supercharge Your Innovation With Domain-Expert AI Agents!

Eleven-level single-phase inverter

A single-phase inverter and level technology, which is applied to electrical components, AC power input to DC power output, output power conversion devices, etc., can solve the problems of large number of power switches and complex topology, and achieve power Fewer switches, simple control and stable operation

Inactive Publication Date: 2014-05-07
NINGBO GREENTECH ENERGY SAVING TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing multi-level inverter topology is too complex and the number of power switches is too large, the present invention proposes an eleven-level single-phase inverter that can output nine different level combinations, It has the advantages of fewer power switches, simple control strategy and stable operation

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
  • Eleven-level single-phase inverter
  • Eleven-level single-phase inverter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] like figure 1 As shown, an eleven-level single-phase inverter includes an AC transfer port J1, a reactor L1, a power switch circuit, a DC power supply V1, a DC power supply V2, a DC power supply V3, a DC power supply V4, and a DC power supply V5, The AC transfer port J1 is provided with a terminal and a b terminal. The power switch circuit includes a power switch Q1, a power switch Q2, a power switch Q3, a power switch Q4, a power switch Q5, a power switch Q6, a power switch Q7, a power switch Q8, and a power switch. Switch Q9, power switch Q10, power switch Q11 and power switch Q12, a total of 12 power switches, one end of the reactor L1 is connected to the a terminal of the AC transfer port J1, the other end of the reactor L1 is connected to the emitter of the power switch Q1, the power switch The collector of Q4 is electrically connected, the b terminal of the AC transfer port J1 is electrically connected to the emitter of the power switch Q2, the collector of th...

Embodiment 2

[0026] In embodiment 2, as figure 2 As shown, a diode D1 and a filter capacitor C1 are connected between the reactor L1 and the AC port J1, the anode of the diode D1 is connected to the reactor L1, the cathode of the diode D1 is connected to the terminal a of the AC adapter port, and the two ends of the filter capacitor C1 are respectively Connect the anode of diode D1 to the b end of the AC transfer port J1. The diode D1 is used to prevent the backflow of the AC grid energy and prevent the grid current from flowing to the inverter side when the bus voltage is low. The filter capacitor C1 is used for the filtering of the inverter circuit. , filter out high frequency current components. Power switch Q1, power switch Q2, power switch Q3, power switch Q4, power switch Q5, power switch Q6, power switch Q7, power switch Q8, power switch Q9, power switch Q10, power switch Q11 and power switch Q12 are all MOSFETs . Others are the same as in Example 1.

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 an eleven-level single-phase inverter which comprises an alternating-current through connection port, an electric reactor, a power switch circuit and five direct-current power sources. The alternating-current through connection port is provided with an a end and a b end, the power switch circuit comprises twelve power switches, one end of the electric reactor is connected with the a end of the alternating-current through connection port, and the other end of the electric reactor and the b end of the alternating-current through connection port are respectively and electrically connected with the power switch circuit. According to the eleven-level single-phase inverter, nine different level combinations can be output; the eleven-level single-phase inverter has the advantages of being fewer in power switch, less in control switch stress, low in power loss, high in efficiency and stable in work; a filter circuit is not required to be independently arranged; alternating-current output voltage harmonic content is lower; output currents can be approximate to harmonic-wave-free ideal sine currents; the eleven-level single-phase inverter can be widely applied to instruments such as precision measurement devices, communication devices and medical devices with high requirements for power grids.

Description

technical field [0001] The present invention relates to an inverter, in particular to an eleven-level single-phase inverter. Background technique [0002] The converter technology can convert the electrical energy converted from other energy sources such as batteries, solar cells and fuel cells into alternating current electrical energy and connect it to the grid to realize the grid connection of energy. Therefore, converter technology is the main research topic of power electronic technology, and it has also become the key technology of new energy. It plays an important role in the development of new energy and has attracted the attention of scholars in recent years. [0003] A circuit that converts direct current to alternating current is generally called an inverter circuit, and in consideration of a control system and the like, it is called an inverter. At present, the main circuit of many inverters mostly adopts the traditional H-bridge circuit structure, which can gen...

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): H02M7/483H02M1/12
Inventor 夏抒曾繁鹏
Owner NINGBO GREENTECH ENERGY SAVING TECH
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