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Optimizing design method of planar coils of inductive power transfer (IPT) system based on LCL resonant topology

A technology of resonant topology and optimized design, applied in electric vehicles, electrical components, charging stations, etc., can solve the problems of low overall system efficiency, low self-inductance and mutual inductance coefficients, and low efficiency of IPT systems, so as to improve the coil mutual inductance coefficient, The effect of improving the self-inductance of the coil

Pending Publication Date: 2019-07-12
HUBEI POLYTECHNIC UNIV
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Problems solved by technology

[0003] At present, the efficiency of the IPT system is low, especially for single-rail applications. Since the primary side is only a single turn, the self-inductance and mutual inductance coefficients are low, resulting in low overall system efficiency.

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  • Optimizing design method of planar coils of inductive power transfer (IPT) system based on LCL resonant topology
  • Optimizing design method of planar coils of inductive power transfer (IPT) system based on LCL resonant topology
  • Optimizing design method of planar coils of inductive power transfer (IPT) system based on LCL resonant topology

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[0064] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0065] According to the method for optimizing the planar coil design of the IPT system planar coil based on the LCL resonant topology of the embodiment of the present invention, in the IPT system: the primary side is the system power supply and the track cable, and the primary side power supply adopts a full-bridge LCL resonant topology; the secondary side is one or more One RGV trolley running on the system power supply track, the secondary side RGV trolley power pick-up adopts LC parallel resonant induction power pickup coil; the system power supply rail and the RGV trolley realize non-contact pow...

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Abstract

The invention discloses an optimizing design method of planar coils of an inductive power transfer (IPT) system based on LCL resonant topology. According to the IPT system, a primary side is a systempower supply and a rail cable, and the primary side power supply adopts a full-bridge LCL resonant topology structure; a secondary side is one or a plurality of rail guided vehicle (RGV) running on apower supplying rail, and electric power picking of the secondary side RGV adopts LC parallel-connection resonant inductive-power-taking coils; and the optimizing method of the coils comprises the flowing steps that step 1, the system output power is determined; step 2, the output efficiency is calculated; step 3, the geometrical size of the inductive-power-taking coils is determined; step 4, self-induction and mutual induction of the inductive-power taking coils are calculated; step 5, the system is optimized; step 6, a finite element simulation model of inductive-power-taking coils is established; and step 7, optimizing parameter calculation of an extreme point of the inductive-power-taking coils and simulation results of the magnetic conductive strip optimizing design are combined, andan optimum arranging mode of the inductive-power-taking coils is obtained. According to the optimizing design method of planar coils of an IPT system based on LCL resonant topology, the optimizing design method of the multi-parameter inductive-power-taking coils based on efficiency optimization is provided, and the energy transfer efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of non-contact energy transmission, in particular to an optimal design method of a planar coil of an IPT system based on an LCL resonance topology. Background technique [0002] With the development of automated warehouses and logistics systems, rail guided vehicles (RGV, Rail Guided Vehicle) are widely used in industry. Traditional RGV power supply methods mainly include trolley line power supply or battery power supply. The trolley line power supply mode is easy to cause electric sparks, and it is extremely inconvenient in complex path planning; the battery power supply mode requires regular charging and discharging maintenance of the battery, and the battery life limited. The track-type inductive power transfer (Inductive Power Transfer, IPT) system can realize the non-contact transmission of electric energy, and can gradually replace the traditional power supply method. [0003] At present, the efficie...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/12H02J50/12
CPCH02J50/12Y02T10/70Y02T10/7072Y02T90/14
Inventor 胡国珍马学军
Owner HUBEI POLYTECHNIC UNIV
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