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A Resonant Circuit of an AC to DC Converter for Contactless Electrical Energy Transmission
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| Author(s) |
R. Stala |
| Abstract |
The paper presents a system of electrical energy transmission to separated, movable appliances. En-ergy is transmitted without galvanic contact via inductive coupling between windings placed on sepa-rated movable parts of a core of a single-phase transformer. Primary winding is supplied through an inverter while secondary winding placed on different part of core is an integral part of a load. Cou-pling between the windings of the transformer changes in a wide range and it is not known. Hence leakage inductances of the windings may change in a wide range. System output voltage is load and coupling sensitive. There are described various types of resonant circuits intended for compensating the windings leakage inductances. There is pointed out the only configuration for which the system output voltage may be accurate controlled by changing frequency of the inverter that supplies the primary wind-ing. In that configuration control of the output voltage may be realized without necessity of knowing leakage inductances of the transformer. The system supplies the separated appliances, therefore the load voltage or other signals on secondary side may not be used for control circuit. It is presented primary cur-rent analyzing method that makes possible to adjust the inverter frequency the optimal value. |
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| Filename: | EPE-PEMC2002 - T1-018 - Stala.pdf |
| Filesize: | 471.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-05-12 by System |
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