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Cluster-type electric automobile dynamic wireless charging segmental guide rail stable power control method

A technology of electric vehicle and wireless charging, which is applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve problems such as charging power fluctuations, achieve the effects of reducing mutual inductance fluctuations, good economy, and simplified structure

Active Publication Date: 2019-08-16
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the change of the coil mutual inductance during the dynamic charging process will cause the fluctuation of the charging power, so maintaining the stability of the mutual inductance and limiting the mutual inductance fluctuation within the acceptable range of the system has become an urgent problem to be solved

Method used

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  • Cluster-type electric automobile dynamic wireless charging segmental guide rail stable power control method
  • Cluster-type electric automobile dynamic wireless charging segmental guide rail stable power control method
  • Cluster-type electric automobile dynamic wireless charging segmental guide rail stable power control method

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Embodiment Construction

[0031] This embodiment provides a method for controlling the stable power of segmented guide rails for dynamic wireless charging of clustered electric vehicles, including the following steps:

[0032] (1) Design the size of the transmitting coil according to the fact that the width of the transmitting coil is 2 times or more than the width of the receiving coil, and the length of the transmitting coil is 4 times or more than the length of the receiving coil. Multiple identical transmitting coils that meet the above ratio are connected end to end and superimposed Lay to form rails.

[0033] track as figure 1 shown, the size selection of the transmit coil is as follows:

[0034] The dimensions of the transmitting coil and receiving coil are attached figure 2 As shown, the length of the receiving coil in the figure is A and the width is B, the length and width of the transmitting coil are represented by C and D, the vertical distance between the two coils is h, E is the horizo...

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Abstract

The invention discloses a cluster-type electric automobile dynamic wireless charging segmental guide rail stable power control method. The cluster-type electric automobile dynamic wireless charging segmental guide rail stable power control method specifically comprises the steps of (1) designing the size of a transmitting coil according to the width, which is two times or more of the width of a receiving coil, of the transmitting coil and the length, which is 4 times or more of the length of the receiving coil, of the transmitting coil; using multiple same transmitting coils, which satisfy theratio, to be end to end; and laying the transmitting coils in an overlapped manner to form a guide rail; (2) according to a mutual inductance changing rule generated between the receiving coil on anelectric automobile and the transmitting coil on the guide rail in the moving process of the receiving coil, analyzing to obtain that the receiving coil is positioned within a position interval [XLi,XRi] of any transmitting coil i when a situation that the charging power changing amplitude of the electric automobile is less than p% is satisfied; and (3) according to the position interval [XLi, XRi] of any transmitting coil and the number of rechargeable vehicles on the coil, making a control strategy, and controlling on-off of the transmitting coil to realize that the charging power changingamplitude of the electric automobile is less than p%.

Description

technical field [0001] The invention relates to electric vehicle wireless charging control technology, in particular to a cluster electric vehicle dynamic wireless charging section guide rail stable power control method. Background technique [0002] With the popularization of electric vehicles and the development of wireless charging technology, on the basis of the existing static wireless charging technology, the dynamic wireless charging technology of electric vehicles has received more and more attention. Due to the dynamization of the charging process, theoretically, a dynamic wireless charging system can greatly increase the battery life of electric vehicles. However, changes in the mutual inductance of the coils during the dynamic charging process will cause fluctuations in the charging power. Therefore, maintaining the stability of the mutual inductance and limiting the mutual inductance fluctuations within the acceptable range of the system has become an urgent prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/12B60L53/122H02J50/10
CPCH02J7/025B60L53/12B60L53/122H02J50/10Y02T10/70Y02T90/14Y02T10/7072
Inventor 王维杨靖宇许晨进张存羊树文
Owner NANJING NORMAL UNIVERSITY
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