A load position detection method for a three-phase wireless power supply system

Abstract

The invention discloses a three-phase wireless power supply system load position detection and control method and relates to a control method for a wireless power supply system. A three-phase wireless power supply system comprises a direct current power source, a three-phase combined type inverter, a primary side compensation mechanism, a primary side coil selection switch, a primary side magnetic energy emission mechanism, a secondary side magnetic energy picking mechanism, a secondary side compensation mechanism, a secondary side rectification filter circuit and a load. The primary side magnetic energy emission mechanism is of a primary side coil array formed by arraying 3n identical coils in a honeycomb shape. The secondary side magnetic energy picking mechanism comprises a picking coil. The position of the secondary side magnetic energy picking mechanism in the primary side coil array is detected by the load position detection method. In this way, the primary side coil selection switch is controlled to switch on a set of primary side coils to form the three-phase wireless power supply system which supplies power to the load. The three-phase wireless power supply system load position detection and control method has the advantages that the three-phase wireless power supply system meets the requirement of reliably and efficiently supplying power to a load position random change system on the premise that flexible load power supply is ensured.

Description

Technical field [0001] The invention relates to a control method of a wireless power supply system, in particular to a load position detection and control method of a three-phase wireless power supply system. Background technique [0002] In daily life, desktop electrical equipment brings many conveniences to people's lives, such as mobile phones, laptops, and televisions. However, the existing electrical equipment currently obtains electricity through a combination of wires and plugs. However, with the increasing number of electrical equipment and the increasing pursuit of convenient life by humans, this traditional wired power supply method has exposed many disadvantages, such as Contact with sparks, complicated cables, and risk of accidental electric shock. Therefore, wireless power transfer (Wireless Power Transfer, WPT) technology based on the principle of inductive coupling has emerged. The wireless power supply of desktop electrical equipment solves the problems of tradi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a load position detection and control method for a three-phase wireless power supply system, which can improve the power supply reliability and flexibility of the system in view of the shortcomings of the traditional desktop wireless power supply system, such as low load position change tolerance and low power supply efficiency. performance, and can ensure the efficient power supply of the load

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