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

A multi-level modular converter

A multi-level, power converter technology that can be used in regulating electrical variables, instruments, charging stations, etc., to solve problems that limit the applicability of economical and efficient solutions for high-power WPT systems

Pending Publication Date: 2022-01-28
AUCKLAND UNISERVICES LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, these WPT systems inherit some disadvantages of the adopted multilevel converter topology, which limits their applicability as an economical and efficient solution for high power WPT systems

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 multi-level modular converter
  • A multi-level modular converter
  • A multi-level modular converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] Compared to traditional conductive EV charging, inductive power transfer (IPT)-based wireless power transfer technology has become attractive for charging EVs while they are simply parked on designated ground-based charging pads. While WPT technologies provide an aesthetically pleasing, convenient and safe EV charging solution, they also enable automated charging. Over the past decade, IPT-based WPT technology has advanced significantly, making low-to-medium power stationary charging commercially viable. In recent years, however, the focus has shifted to exploring the feasibility of high-power IPT solutions that enable fast charging and charging in motion. Using a fast charger can significantly reduce the refueling time of an EV, while charging on the fly or dynamic charging can help extend the effective range and avoid deep cycling of the EV battery. This trend is made even more pronounced by emphasizing the WPT3 (11kW) and WPT4 (22kW) power classes defined in the SAE...

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 disclosure relates to an integrated boost modular multilevel converter, which has particular, but not sole, relevance to a converter for an inductive or capacitive (wireless) power transfer system. More particularly, the present invention according to an embodiment discloses a modular multilevel power converter (MMPC) comprising: at least one submodule stack having an output for connection to a load and an input for connection to an input power source, at least one inductive element provided between the input and the output, the at least one submodule stack including at least two submodules, each submodule comprising at least one capacitor and a plurality of controllable switches, and the submodules being operable to selectively transfer energy from the at least one inductive element to boost a voltage at the output relative to a voltage at the input.

Description

technical field [0001] The present disclosure relates to an integrated boost type modular multilevel converter (multilevel converter) of particular but not exclusive relevance to converters for inductive or capacitive (wireless) power transfer systems. Background technique [0002] Electric vehicles (EVs) are becoming increasingly popular as the preferred mode of transportation for a sustainable future. While current EVs employ wired chargers, Wireless Power Transfer (WPT) technology promises to revolutionize EV charging by offering an attractive alternative. This has driven the development of cost-effective, commercially viable WPT solutions to allow EVs to be simply charged by parking on designated ground-based charging pads. [0003] Traditionally, home wired and wireless EV chargers are designed to operate on single-phase power and are rated at up to 7.4kW, resulting in charging times of 3 to 7 hours. However, there is a growing demand for faster charging speeds, espec...

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): H02M7/501H02M7/49H02J50/10H02J50/05B60L53/12H02M7/19H02J5/00H02M7/44
CPCH02M7/49H02M7/501H02J50/05G05F1/10H02M7/19H02J7/02H04B5/0037H04B5/0075H02J50/12B60L53/126B60L53/55H02J50/10H02M7/483H02M1/12B60L58/21B60L50/60B60L53/12B60L53/22H02J2310/48Y02T10/70Y02T90/14Y02T10/7072H02M7/4835H02M1/0095Y02T90/12
Inventor B·S·里亚尔D·J·斯里马维塔纳R·A·赞恩王文蔚
Owner AUCKLAND UNISERVICES LTD