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Adaptive Control for Wireless Power Transfer

A technology of wireless power transmission and coils, applied in transmission systems, near-field transmission systems, current-only measurement, etc., can solve problems such as changing mobile communications

Active Publication Date: 2020-01-21
MASSACHUSETTS INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Wireless power transfer has the potential to revolutionize mobile communications and make smartphones and other portable or fixed wireless devices permanently unplugged

Method used

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  • Adaptive Control for Wireless Power Transfer
  • Adaptive Control for Wireless Power Transfer
  • Adaptive Control for Wireless Power Transfer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0260] Example 1: The estimate of matrix A is corrupted due to a bug in hardware or software. In this case, the algorithm can correct itself in N iterations. We refer to this as the self-correcting property because the algorithm can quickly recover from completely incorrect states without any explicit error checking.

example 2

[0261] Example 2: For some reason, at the voltage V S and I S There is significant noise in the measurements. In this case, this measurement noise does not accumulate from one iteration to the next. This is important because otherwise over many iterations the accumulated noise will overwhelm the actual estimate. The reason we don't accumulate noise is because we always estimate Operate on the difference from the actual A. Any noise in previous measurements will be in the produces an estimation error in , which in turn is estimated by to capture. In other words, at each iteration, we estimate not only the update in the channel, but also the error caused by the previous one.

[0262] In the previous section, the process of iteratively maximizing the total power delivered to one or more receivers due to channel estimation with zero overhead was described. In this section, an alternative design approach is presented. Specifically, this approach contributes to explicit ...

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Abstract

A method of wireless power transfer that adapts to varying receiver configurations, including changes in the number, location and / or orientation, magnetic coupling, and circuit loading (eg, battery charging circuitry) of one or more receivers. Adaptation can be performed without interrupting optimal or near-optimal power transfer to a receiver, and a measure of fairness can be provided across multiple receivers.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Application No. 62 / 098,577, filed December 31, 2014, and U.S. Provisional Application No. 62 / 117,105, filed February 17, 2015, the contents of which are incorporated herein by reference. [0003] This application is related to, but does not claim priority to, U.S. Application No. 14 / 502,191, filed September 30, 2014, entitled "Wireless Power Transmitter," which claims filing September 7, 2014 Priority to U.S. Provisional Application No. 62 / 046,999 and U.S. Provisional Application No. 61 / 939,801 filed February 14, 2014, the contents of each of which are incorporated herein by reference. [0004] Statement of Federally Funded Research [0005] This invention was made with Government support under CNS-1116864 awarded by the National Science Foundation. The government has certain rights in inventions. technical field [0006] The present invention relates to wireless po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/28
CPCH04B5/0037H04B5/0081H02J50/90H02J50/12H02J7/00712H02J50/402H02J50/80H02J50/10H02J7/00714G01R19/0092H02J2207/20
Inventor 迪纳·卡塔比石立新扎卡里·爱德华·卡贝莱克
Owner MASSACHUSETTS INST OF TECH
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