PT symmetric SS topology MC-WPT system and implementation method thereof

Abstract

The invention discloses a PT symmetric SS topology MC-WPT system and an implementation method thereof. The PT symmetric characteristic is applied to a currently common two-coil SS topology magnetic coupling wireless power transmission system, and is further popularized to a high-order SS topology magnetic coupling wireless power transmission system of any n-coil architecture, wherein the PT symmetric SS topology MC-WPT system sometimes is a two-coil PT symmetric MC-WPT system, and sometimes is a high-order PT symmetric MC-WPT system with a relay coil. According to the technical scheme of the invention, the circuit structure of the negative resistor is changed, and the PT symmetry characteristic is applied to the most common SS topology magnetic coupling wireless power transmission system at present, so that the SS topology magnetic coupling wireless power transmission system can realize the high-efficiency energy transmission without any external setting, and a PT symmetry mechanism is further popularized to any multi-coil architecture wireless power transmission system, and accordingly a high-order SS topology magnetic coupling wireless power transmission system is obtained, and the transmission distance of the system can be effectively improved.

Description

technical field [0001] The invention relates to the field of wireless power transmission, in particular to a PT symmetrical SS topology MC-WPT system and an implementation method thereof. Background technique [0002] As we all know, the current commonly used MC-WPT systems usually can only achieve efficient energy transfer within a specific limited range. Once the transmission distance or azimuth deviates, the energy efficiency of the system will drop sharply, or even decrease as the transmission distance decreases. Limited by space transmission performance, such as transmission distance, offset, position robustness, etc., the industrialization process of MC-WPT technology is very slow. Effectively improving the space transmission performance of the system is the key to promoting the industrial application of MC-WPT technology . [0003] Regarding the improvement of the space energy transfer performance of the MC-WPT system, it is currently mainly focused on the system top...

AI Technical Summary

Problems solved by technology

[0005]1. There is no topology limitation in the existing PT symmetrical MC-WPT system based on the inverter mode, but it is necessary to control the frequency of the inverter and increase some Additional circuits, such as detection, control or regulation circuits, which will increase the complexity of the system and also bring additional losses

[0006]2. PT symmetrical system based on op amp mode Due to the existence of the virtual pole of the capacitor, the negative resistance constructed by using the op amp must be connected in parallel with the capacitor, otherwise the system cannot run stably

Therefore, the PT symmetrical MC-WPT based on the operational amplifie

Images