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An improved active disturbance rejection control method and system for a wireless power transmission system

A technology of wireless power transmission and active disturbance rejection control, which is applied in control/regulation systems, output power conversion devices, electrical components, etc. Problems such as large sum, to achieve the effect of reducing observation burden, reducing design complexity, and simple algorithm

Active Publication Date: 2022-04-08
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0004] Purpose of the invention: The present invention aims at the traditional nonlinear active disturbance rejection controller in the wireless power transmission system with too many parameters, complicated adjustment, and the sum of the disturbance items estimated by the extended state observer is too large, which leads to a large observation pressure and is difficult to guarantee the estimation In order to solve the problem of accuracy, an improved active disturbance rejection control method and system for wireless power transmission system are proposed

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  • An improved active disturbance rejection control method and system for a wireless power transmission system
  • An improved active disturbance rejection control method and system for a wireless power transmission system
  • An improved active disturbance rejection control method and system for a wireless power transmission system

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[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood, however, that the invention may be embodied in various forms, and some exemplary and non-limiting embodiments are shown in the drawings and described below, and are not intended to limit the invention to the specific embodiments described. .

[0043] It should be understood that, where technically feasible, the technical features listed above for different embodiments can be combined with each other to form other embodiments within the scope of the present invention. In addition, the specific examples and embodiments described in the present invention are non-limiting, and corresponding modifications can be made to the structures, steps and sequences described above without departing from the protection scope of the present invention.

[0044] In this embodiment, the dual LCL type wireless power transfer system is taken ...

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Abstract

The present invention proposes an improved active disturbance rejection control method and system for a wireless power transmission system. In order to reduce the observation pressure of the linear expansion state observer for complex disturbances, the present invention is based on the known partial model information b of the controlled system. 1 , first adopt a second-order LESO to the partial disturbance R of the wireless power transfer system 0 Observation estimation is performed, and then the linear expansion state observer observes and estimates other disturbances ω(t) of the system, and compensates the observed total disturbance F(t) in the linear state error feedback control law. The method proposed by the invention has low model dependence, and enables the wireless power transmission system to realize stable output, easy parameter setting and strong robustness under the condition of external disturbance and internal parameter perturbation.

Description

technical field [0001] The invention relates to the technical field of wireless power transmission, in particular to an improved active disturbance rejection control method and system for a wireless power transmission system. Background technique [0002] As a new type of power transmission technology, wireless power transmission technology can complete safe and reliable wireless power supply for electrical equipment. It has been widely used in many fields such as smart phones, electric vehicles and smart home appliances. Because different electrical equipment has different requirements for power, and the output characteristics of the wireless power transmission system will be affected by changes in its own parameters (such as mutual inductance, load, etc.) and external environmental interference, resulting in unstable power output. Therefore, in order to realize the stable and reliable output of the wireless power transmission system, it is very necessary to study the outp...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12H02J50/70H02M3/335
CPCH02J50/12H02J50/70H02M3/33523
Inventor 夏晨阳李晓丽李壮杨旭浩魏楠韩潇左冯其凯马帅廖志娟伍小杰
Owner CHINA UNIV OF MINING & TECH
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