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A Design Method for Reducing Electrical Stress in Wireless Charging System

A technology of wireless charging and design method, applied in computing, electrical digital data processing, special data processing applications, etc., can solve the problems of large electrical stress of wireless charging system, reduce electrical stress of wireless charging system, etc., and achieve good adaptability to complex environments , improve design efficiency, and realize the effect of electrical stress

Active Publication Date: 2019-07-12
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem of large electrical stress in the current wireless charging system, and propose a design method for reducing the electrical stress of the wireless charging system

Method used

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  • A Design Method for Reducing Electrical Stress in Wireless Charging System
  • A Design Method for Reducing Electrical Stress in Wireless Charging System
  • A Design Method for Reducing Electrical Stress in Wireless Charging System

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] The structure of the wireless charging system applying the design method of the present invention is as follows figure 2 shown. The wireless charging system includes a system power supply 201 , an inverter 202 , a primary side compensation network 203 , a wireless energy transmission coil 204 , a secondary side compensation network 205 , a rectifier 206 , and a system load 207 . The system power supply 201 provides electric energy for the entire wireless charging system, and the input end of the inverter 202 is connected to the system power supply 201 to convert the electric energy provided by the system power supply into high-frequency alternating current; the output end of the inverter 202 is connected to the primary side compensation network 203 , the high-frequency alternating current is sent to the wireless energy transmission coi...

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Abstract

The invention discloses a design method for reducing electric stress of a wireless charging system. The design method comprises steps as follows: step A, a model of the wireless charging system is established; step B, a target function of system performance indexes is determined according to actual demands; step C, a target function for minimization of the system electric stress is determined on the premise that performance indexes are guaranteed; step D, compensation network parameters enabling the electric stress of the wireless charging system to be minimum are solved by means of the wireless charging system model and the target function; step E, compensation network parameters obtained through calculation are tested in an actual system and optimized according to a test result.

Description

technical field [0001] The invention relates to a design method of a wireless charging system, in particular to a design method for reducing the electrical stress of the wireless charging system. Background technique [0002] The concept of Wireless Power Transfer (WPT) was first proposed by American scientist Tesla. In 2007, researchers at the Massachusetts Institute of Technology proposed a new method for magnetic resonance wireless power transfer. Subsequently, this technology has received more and more attention and has been widely used in embedded medical, mobile phones, and electric vehicle charging. However, in practical applications, there is a large reactive power in the wireless charging system, which makes the wireless energy transmission coil, inverter and other equipment bear large voltage and current stress. In order to cope with this electrical stress, it is necessary to select devices with high withstand voltage and high current, which in turn increases the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06F30/367Y02E60/00
Inventor 郭彦杰王丽芳陶成轩李芳张俊智张玉旺张云
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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