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A wireless power supply power control system and method under dynamic change of transmission distance

A dynamic change, wireless power supply technology, applied in circuit devices, electrical components, etc., can solve problems such as load output power fluctuations, and achieve the effect of improving intelligent self-management

Active Publication Date: 2021-08-10
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, provide a wireless power supply power control system under dynamic changes in transmission distance, and solve the problem of load output power fluctuations caused by changes in transmission distance

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  • A wireless power supply power control system and method under dynamic change of transmission distance
  • A wireless power supply power control system and method under dynamic change of transmission distance
  • A wireless power supply power control system and method under dynamic change of transmission distance

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Embodiment Construction

[0029] The present invention will be further explained and illustrated below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as figure 1 , a wireless power supply power control system under dynamic changes in transmission distance, comprising an energy data sending module and an energy data receiving module; the energy data sending module includes a first voltage detection unit, a transmitting module control unit, and a first data transmitting and receiving antenna unit , a first drive circuit and a data modulation and demodulation module, and a sequentially connected power factor correction circuit, a first DC / DC converter, an inverter circuit module and an energy transmitting coil; the power factor correction circuit, the first DC / DC A converter and an inverter circuit module are connected in series to form a voltage conversion circuit; the energy data receiving module includes an energy receiving coil for magnetic coupling with the ener...

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Abstract

A wireless power supply power control system and method under dynamic change of transmission distance belong to the technical field of aerospace energy. The invention realizes that when the energy transmission distance of the wireless power supply system changes, the automatic step-by-step adjustment method and the constant power control method of the receiving end coil can be used to solve the problem of the load output power fluctuation caused by the large-scale change of the transmission distance. It is a wireless power supply system suitable for different transmission distances, and also a wireless power supply system with constant output power.

Description

technical field [0001] The invention relates to a wireless power supply power control system under dynamic change of transmission distance, Background technique [0002] The wireless power supply system can transmit energy by using a coil to establish a magnetic field. As the use conditions of the wireless power supply system become more and more stringent, the energy transmission distance is required to be variable in a wide range and the output power is kept constant. The traditional wireless power supply system cannot meet this requirement. Require. As the transmission distance changes, the mutual inductance value M of the energy transmitting coil and the receiving coil will change within a certain range. From formulas (1) and (2), it can be seen that the value of M can directly affect the induced voltage U at the energy receiving end S , so as to change the output power, where ω is the resonant angular frequency of the wireless power supply system, I P is the current o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/20H02J50/80
CPCH02J50/20H02J50/80
Inventor 王国辉周广铭夏国江李亚群宋锐张金刚耿胜男路娟张大铭王星来俞达张雯雯
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG