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Research of the Wireless Power Project Technology

Author: QiaoShiCheng
Tutor: LiBin
School: Shenyang University of Technology
Course: Communication and Information System
Keywords: Wireless energy project Loosely coupled transformer High frequency inverter technology location Object detection localization
CLC: TM724
Type: Master's thesis
Year: 2011
Downloads: 84
Quote: 0
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Abstract


Wireless power project technology is a new type of power transmission technology, which is different from the traditional power-supply modes using wireless way to provide power for electrical equipment . Wireless power project technology has two main characteristics: First, the electrical equipment and power supply are completely separated, the electrical equipment has good safety, flexibility, sealing, beautiful quality; Second, it can transmit electricity through all the non-metallic material ,such as water, air, wood, plastic, glass and even soil etc. Therefore it can transmit electricity through separated object.This thesis firstly carries on researching of wireless power project technology which includes the research of loose coupling transformer and high frequency inverter technology. This article designs a wireless energy project system which bases on the frequency control chip SG3524 and the drive chip IR2110. The main circuit adopts full bridge resonant inverter circuits ,adding the active power factor correction circuit and EMI control, which effectively improve the quality factor of the power system. At present ,the thesis in domestic discusses wireless energy project technology mostly focuses on the efficiency and don’t study on the system power state control and communications, as well as the detection and localization of the electrical equipment and power supply. This thesis analyzes the energy loss of control mode for the power supply state control, and finally adopts the control mode of time access,which effectively reduces the no-load loss.Secondly the thesis discusses the way of information load, analyses the difference between the advantages and disadvantages. Then studies the communication of the load information of the projected energy changes,and then design the pattern and frame structure. The system uses the subcarrier communication mode to realize the digital signal’s two-way transmission,then uses AM carrier modulate circuit.The processor adopts NXP LPC1114, which realizes the reliable communication.Secondly, the relative position of the power supply and the electricity equipment often determines the quality and efficiency of power supply. If the system wants to ensure the power supply equipment to transfer the power efficiently and reliablely, there must be detailed information for equipment , so that we can guarantee to avoid misjudging the operation of the system and reduce the waste of the energy and improve the reliability of the system. This thesis will give scheme of the object’s detection and localization in the final chapter.

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Transmission and distribution technology > No wire transmission
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