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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Novac, B.M. Smith, I.R. Parker, M. Senior, P. Pecastaing, L. De Ferron, A. Pignolet, P. Souakri, S. Louverdis, G. |
| Copyright Year | 2013 |
| Description | Author affiliation: Sch. of Electron., Electr. & Syst. Eng., Loughborough Univ., Loughborough, UK (Novac, B.M.; Smith, I.R.; Parker, M.; Senior, P.) || Dstl, Fort Halstead, UK (Louverdis, G.) || SIAME, Univ. de Pau, Pau, France (Pecastaing, L.; De Ferron, A.; Pignolet, P.; Souakri, S.) |
| Abstract | A high-power, high-energy pulsed-power generator, based on a 415 kJ/22 kV capacitor bank, has recently been developed at Loughborough University [1]. The generator can drive a high-impedance system, generating a total electrical power of many GW, while depositing a Joule energy of many tens of kJ in the load. To remove the unwanted negative-polarity voltage precursor and at the same time sharpen the output, the arrangement requires the use of a high-power `diode' in the transformer secondary winding circuit. The paper describes the successful development of a polarity-dependent spark-gap which can be used as a high-voltage high-power diode. Operated in air at atmospheric pressure, the unit is capable of removing unwanted negative polarity voltage impulse precursors up to -300 kV, while at the same time capable of closing at +140 kV, thus reducing the rise time of the positive polarity voltage impulse down to about two microseconds. After a short description of the high-power, high-energy pulsed power system, the design of the high-power diode is outlined. Using an electrostatic simulation of the special electrode configuration, an explanation is provided for the polarity-dependent breakdown phenomena. Preliminary experimental tests, using the Pau University Marx generators to confirm the diode effect, are also presented Finally, high-energy high-power tests using the generator are briefly presented, highlighting the impeccable functioning of the high-power diode. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 1684098 |
| Page Count | 6 |
| File Format | |
| ISSN | 21584915 |
| e-ISBN | 9781467351683 |
| DOI | 10.1109/PPC.2013.6627458 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-06-16 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Generators Electric fields Electric breakdown Windings Switches Electrostatics Testing |
| Content Type | Text |
| Resource Type | Article |
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