Long-distance wireless charging LCC-S topological parameter design method

A technology of LCC-S and wireless charging, applied in the direction of design optimization/simulation, special data processing applications, etc., can solve the problems of low effective utilization of electric energy, poor transmission capacity, and restrictions on the wide application of wireless energy transmission technology

Active Publication Date: 2020-11-06
SOUTHEAST UNIV
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Problems solved by technology

As the wireless power transmission distance is more and more widely used in military applications, the requirements for its transmission distance and efficiency are also getting higher and higher. However, the existing wireless charging technology can only achieve medium-distance (10cm-50cm) energy transmission. The long-distance (50cm-200cm) transmission ability is poor, and the farther the transmission distance is, the worse the electromagnetic field coupling ability is, and the lower the effective utilization rate of electric energy is, which greatly limits the wide application of wireless power transmission technology

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  • Long-distance wireless charging LCC-S topological parameter design method
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  • Long-distance wireless charging LCC-S topological parameter design method

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Embodiment Construction

[0038] The design method of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] (1) Calculate the minimum efficiency η that the resonator needs to meet according to the design requirements 2 ;

[0040] According to the rectification and inverter efficiency η at the transmitter 1 , secondary coil rectification and DC-DC efficiency η 3 And the required efficiency of the wireless charging system requires η to calculate the minimum efficiency η that the resonator needs to achieve 2 , its calculation formula is as follows:

[0041]

[0042] (2) Establish the LCC-S equivalent circuit based on the mutual inductance equivalent model, and analyze and obtain the constraint relationship between the circuit parameters and each branch current, input power, output power and efficiency;

[0043] The equivalent model of LCC-S topological mutual inductance is as follows figure 2 shown, where Z f is the impedanc...

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Abstract

The invention discloses a long-distance wireless charging LCC-S topological parameter design method. The method comprises the steps that (1) target parameters are set; (2) calculating the minimum efficiency required to be satisfied by the resonator according to design requirements; (3) establishing an LCC-S equivalent circuit based on the mutual inductance equivalent model, and analyzing to obtaina constraint relationship between circuit parameters and each branch current, input power, output power and efficiency; (4) designing magnetic coupling mechanism parameters under a long-distance transmission condition; (5) designing primary side compensation inductance (capacitance) parameters; (6) calculating compensation inductance loss, eddy current loss, hysteresis loss and capacitance loss;(7) calculating the resonator efficiency, comparing the resonator efficiency with a target set value, If the designed resonator efficiency is greater than or equal to the target set efficiency, determining that the designed parameter value meets the target parameter setting requirement; otherwise, returning to the step (4) to redesign the parameters. The method is used for promoting the universality and economy of wireless power transmission technology application.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to a design method for long-distance wireless charging LCC-S topology parameters. Background technique [0002] Wireless Power Transmission (WPT) technology has become one of the most active research directions in the field of electrical engineering due to its advantages of simple charging method and safety, and has broad development prospects in military and civil applications. As the wireless power transmission distance is more and more widely used in military applications, the requirements for its transmission distance and efficiency are also getting higher and higher. However, the existing wireless charging technology can only achieve medium-distance (10cm-50cm) energy transmission. The long-distance (50cm-200cm) transmission capability is poor, and the farther the transmission distance is, the poorer the electromagnetic field coupling capability ...

Claims

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Application Information

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IPC IPC(8): G06F30/23
CPCG06F30/23Y02T10/7072Y02T10/70Y02T90/14
Inventor 黄学良钟汝莹谭林林汤宗尧孟涛李佳承
Owner SOUTHEAST UNIV
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