Unlock instant, AI-driven research and patent intelligence for your innovation.

Carrier PWM (Pulse Width Modulation) method of three-phase T-type three-level dual-output inverter

A three-level, dual-output technology, used in output power conversion devices, conversion of AC power input to DC power output, electrical components, etc., can solve problems such as reporting, and achieve simple modulation, good effect, and good output waveform quality. Effect

Pending Publication Date: 2022-04-26
NORTHEAST DIANLI UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the three-level dual-output inverter has been proposed, but there are few studies on the three-level dual-output inverter at this stage, and there is no modulation of the three-phase T-type three-level dual-output inverter in the existing literature. method reporting

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
  • Carrier PWM (Pulse Width Modulation) method of three-phase T-type three-level dual-output inverter
  • Carrier PWM (Pulse Width Modulation) method of three-phase T-type three-level dual-output inverter
  • Carrier PWM (Pulse Width Modulation) method of three-phase T-type three-level dual-output inverter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0085] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0086] The carrier PWM modulation method of the three-phase T-type three-level double-output inverter of the present invention can effectively control the frequency and amplitude of two sets of output voltages. The topology of the three-phase T-type three-level dual-output inverter is as follows: figure 1 shown. It can be seen from the figure that the three-phase T-type three-level dual-output inverter consists of a DC side capacitor C 1 and capacitance C 2 , 18 power switching devices and 18 diodes. The three-phase T-type three-level dual-output inverter has three-phase bridge arms, which are respectively defined as an A-phase bridge arm, a B-phase bridge arm, and a C-phase bridge arm. Each phase bridge arm is composed of six power switches S x1 ~S x6 and 6 diodes D x1 ~D x6 Composition, where x ∈ {A, B, C}. The DC side capac...

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 relates to a carrier PWM (Pulse Width Modulation) method of a three-phase T-type three-level dual-output inverter, which is characterized in that: aiming at the three-phase T-type three-level dual-output inverter, an upper group of modulating waves and a lower group of modulating waves are respectively compared with an in-phase laminated carrier wave, and according to a switch state and a modulation comparison result, the carrier wave is modulated by the modulation method; according to the three-phase T-type three-level dual-output inverter, logic operation for generating driving signals of each power switch is deduced, a single direct-current input voltage of the three-phase T-type three-level dual-output inverter is converted into two groups of three-phase alternating-current voltages with adjustable frequencies and amplitudes, and the three-phase T-type three-level dual-output inverter has the advantages of being good in output waveform quality, easy to implement and the like.

Description

technical field [0001] The invention relates to the field of power electronics, in particular to a carrier PWM modulation method for a three-phase T-type three-level dual-output inverter. Background technique [0002] In recent years, dual AC output systems have gained important applications in fields such as electric vehicles, rail traction, and wind power generation. The core of the dual AC output system is the dual output inverter. At present, the research on two-level dual-output inverters is relatively mature, but it cannot meet the demand for high-voltage and large-capacity dual-output inverters in today's power industry. Three-level inverters have many advantages over two-level inverters, such as lower harmonic distortion rate and higher efficiency. Therefore, the three-level dual-output inverter has been proposed, but there are few studies on the three-level dual-output inverter at this stage, and there is no modulation of the three-phase T-type three-level dual-ou...

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): H02M7/5387H02M7/483
CPCH02M7/53873H02M7/53875H02M7/483
Inventor 王秀云吴雪东薛彪袁帅王汝田刘闯蔡国伟陈继开郭东波张嘉伟
Owner NORTHEAST DIANLI UNIVERSITY
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