Novel wireless electric energy transmission system of single-phase load
A technology of wireless power transmission and single-phase load, which is applied in the direction of electrical components, circuit devices, output power conversion devices, etc., can solve the problems of matrix converters such as the difficulty of bidirectional switching and commutation, and achieve the effect of solving the difficulty of bidirectional switching and commutation
Inactive Publication Date: 2016-06-15
CHINA UNIV OF MINING & TECH
View PDF2 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Aiming at the shortcomings of the traditional single-phase load wireless power transmission system, the present invention proposes a new type of single-phase load wireless power transmission system. The matrix converter of the system directly performs AC-AC conversion without intermediate rectification and filtering links; moreover, The improved SPWM hybrid modulation strategy has successfully solved the difficult problem of bidirectional switching commutation in matrix converters
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0023] Embodiment 1: A new type of single-phase load wireless power transmission system, the main circuit is divided into two parts, the sending part and the receiving part, with the magnetic circuit mechanism as the boundary. The sending part includes DC power supply 1, high frequency inverter 2, primary side series resonance compensation capacitor 3, primary side coil 4 of magnetic circuit mechanism; the receiving part includes magnetic circuit mechanism secondary side coil 6, secondary side parallel resonance compensation capacitor 7, matrix Converter 8, filter 9 and single-phase load 10.
[0024] The system is bounded by the magnetic circuit mechanism, the primary coil 4 of the magnetic circuit mechanism and the secondary coil 6 of the magnetic circuit mechanism are not in contact with each other, and the wireless transmission of electric energy from the primary side to the secondary side is realized.
[0025] The matrix converter 8 directly performs AC-AC conversion witho...
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
Login to View More Abstract
The invention discloses a novel wireless electric energy transmission system of a single-phase load. A main circuit is divided into a sending part and a receiving part by taking a magnetic path mechanism as a boundary, wherein the sending part comprises a DC power supply, a high-frequency inverter, a primary-side series resonant compensation capacitor and a primary-side coil of the magnetic path mechanism, the receiving part comprises a secondary-side coil of the magnetic path mechanism, a secondary-side parallel resonant compensation capacitor, a matrix converter, a filter and the single-phase load, the DC power supply is converted to high-frequency alternating current by the high-frequency inverter, the high-frequency alternating current flows through the primary-side series resonant compensation capacitor and then is provided for the primary-side coil of the magnetic path mechanism, the secondary-side coil of the magnetic path mechanism is used for picking up energy based on an electromagnetic induction principle, and power-frequency alternating current is provided for the single-phase load through the matrix converter and the filter. The novel wireless electric energy transmission system has the advantages that AC-AC conversion is directly fulfilled by the matrix converter, a rectification filtering link is not needed, and the problem of difficulty in commutation of the matrix converter is successfully solved by an improved sinusoidal pulse width modulation (SPWM) hybrid modulation strategy.
Description
technical field [0001] The invention relates to a wireless power transmission system, in particular to a novel single-phase load wireless power transmission system. Background technique [0002] The traditional way of power supply is that the load takes power directly from the power supply through wires. This power supply method has certain disadvantages, such as difficult maintenance, inflexible power supply, easy wear and tear, plug-in sparks, and the risk of electric shock. To address the shortcomings of traditional power supply methods, Wireless Power Transfer (WPT for short) technology emerged as the times require. [0003] At present, the wireless power transmission technology mainly realizes the wireless power supply of single-phase loads. The matrix converter of this system directly performs AC-AC conversion without intermediate rectification and filtering links. However, due to the use of bidirectional switches, it also increases the difficulty of matrix converter ...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12H02M5/293
CPCH02M5/293
Inventor 年长春王永升田浩孙宝征
Owner CHINA UNIV OF MINING & TECH