Multi-load power balanced wireless electric energy transmission system and configuration method

Abstract

The invention provides a multi-load power balanced wireless electric energy transmission system and a configuration method. The system comprises a direct-current power supply module, a transmitting-end electric energy conversion module, a source coil, a plurality of repeating coils, a plurality of resonant compensation capacitors and a plurality of distributed sensor loads. According to the configuration method of the system, the resonance compensation capacitance of the source coil and the resonance compensation capacitance of the repeating coils are calculated; parameters such as inductance,capacitance, resistance and the like of the source coil and the repeating coils and the resistance of the distributed sensor loads are determined through an LCR measurement meter; the mutual inductance between every two adjacent repeating coils under each load power balance condition is calculated; and the relative positions of the repeating coils can be obtained through calculation. Balanced power can be provided for the multiple sensor loads at different distances, and meanwhile, high transmission efficiency and long transmission distance area achieved.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to a multi-load power balanced wireless power transmission system and configuration method. Background technique [0002] In recent years, wireless power transfer technology has attracted widespread attention at home and abroad. Existing wireless power transmission technologies include at least the following five directions: electromagnetic induction, electromagnetic resonance, microwave, ultrasonic and laser. Among them, the principle of the magnetic coupling resonant wireless power transmission technology is the same as the resonance principle of the tuning fork: coils with the same vibration frequency arranged in a magnetic field can also realize energy transfer from one coil to another due to the same vibration frequency characteristics. It is characterized by a long transmission distance and can realize one-to-many energy transmission, but the t...

AI Technical Summary

Problems solved by technology

Among them, the principle of magnetic coupling resonant wireless power transmission technology is the same as the resonance principle of tuning fork: the coils with the same vibration frequency arranged in a magnetic field can also realize energy transfer from one coil to another due to the same vibration frequency characteristics. It is characterized by a long transmission distance and can realize one-to-many energy transmission, but the transmission efficiency is low, and it is suitable for medium-distance transmission of medium power

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