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Device having an adjustable capacitance value for tuning a system that can oscillate, system that can oscillate, and energy transmission system

An oscillation system, energy transmission technology, applied in the adjustment of resonant circuits, capacitors that change capacitance by non-mechanical methods, circuit devices, etc., can solve the problems of high construction space and cost, loss of switching elements, etc.

Inactive Publication Date: 2017-08-18
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But such a network is costly with regard to the required construction space and overhead
Furthermore, when the energy transmission system, as described, should operate in the power range of a few kW, the switching elements generate extremely large losses

Method used

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  • Device having an adjustable capacitance value for tuning a system that can oscillate, system that can oscillate, and energy transmission system
  • Device having an adjustable capacitance value for tuning a system that can oscillate, system that can oscillate, and energy transmission system
  • Device having an adjustable capacitance value for tuning a system that can oscillate, system that can oscillate, and energy transmission system

Examples

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Embodiment Construction

[0031] figure 1 An energy transfer system known to a person skilled in the art is shown, comprising a first oscillating system 10 and a second oscillating system 20 . The first oscillating system 10 comprises a frequency generator 11 (voltage source), having a capacitance C 1 The capacitor 12 and has an inductance L 1 The coil 13. The first oscillating system 10 represents the primary coil system of the device for transmitting energy to the second oscillating system 20 . The first oscillation system 10 can, for example, be embedded in the ground of the parking space or be arranged on the ground of the parking space.

[0032] Components of the second oscillating system 20 which, in addition to the load 21 (energy store), also comprise 2 The second capacitor 22 and has an inductance L 2 The second coil 23 is integrated in the vehicle. If the vehicle is parked in a parking space, the coils are placed one above the other so that their coils 13 , 23 have a magnetic coupling K...

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Abstract

The invention relates to a device having an adjustable capacitance value for tuning a first system (10) that can oscillate, which has an unknown, weak coupling factor for coupling to a second system (20) that can oscillate. The device comprises a first capacitor (Cvar), the capacitance of which depends on a voltage, and a direct voltage source (DCvar), the voltage of which present at the terminals thereof can be controlled, wherein the series connection of the direct voltage source (DCvar) and a decoupling element (Lentk) is connected in parallel with the terminals of the capacitor in order to apply a variable bias voltage to the first capacitor (Cvar). The voltage present at the terminals of the direct voltage source (DCvar) is adjusted in accordance with a working frequency of the system (10) that can oscillate.

Description

technical field [0001] The invention relates to a device with an adjustable capacitance value for tuning a first oscillatory system which can be coupled to a second oscillatory system with an unknown weak coupling coefficient. The invention also relates to an oscillating system for transmitting energy and an oscillating system for receiving energy. Furthermore, the invention relates to an energy transmission system. Background technique [0002] In a device for the contactless transmission of energy to a device assigned thereto, in the case of inductive transmission, electrical energy is transmitted by means of an alternating magnetic field within a system with an air gap. The coil system consists of two coils: the primary coil, which is fed by a current source, and the secondary coil, which supplies electrical energy to the consumer. [0003] If such a device is to be used in the motor vehicle sector, the primary coil is usually arranged in a charging station on the groun...

Claims

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Application Information

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IPC IPC(8): B60L11/18H02J50/10H03L7/185H03J3/18
CPCB60L53/12H03J3/185H03L7/185H03J2200/10Y02T10/7072Y02T90/14H02J50/12B60L53/126Y02T10/70Y02T90/12H01G7/00H03J3/18
Inventor M.布鲁姆T.科马M.曼特尔M.珀布尔
Owner SIEMENS AG