Partial Discharge and Breakdown of Solid Dielectrics under AC, DC, and Combined AC/DC High Voltage Stresses

Publikation: Qualifikations-/StudienabschlussarbeitDissertation

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OriginalspracheEnglisch
QualifikationDoktor der Ingenieurwissenschaften
Gradverleihende Hochschule
Betreut von
  • Ernst Gockenbach, Betreuer*in
Datum der Verleihung des Grades8 Mai 2020
ErscheinungsortGarbsen
ISBNs (Print)9783959004657
ISBNs (E-Book)978-3-95900-493-0
PublikationsstatusVeröffentlicht - 2020

Abstract

The penetration of energy systems with renewable energy, mostly from wind turbines which are often far from the load centres, is increasing. Furthermore, shutting down of nuclear power plants in Germany, increasing the use of photovoltaic systems, and new consumer-structures, such as electric vehicles, require a redesign in the power transmission system. As an option, integration of direct current (DC) transmission systems in the existing alternating current (AC) infrastructure is proposed. The research on dielectrics under AC voltage has taken excellent progress, but analysis on DC condition is not as well developed as that under AC. In the case of the combined AC/DC voltage, the performance of insulation systems is not well known. Therefore, more research concerning the behaviour of insulation materials in combined AC/DC systems is necessary. Development of suitable models for the prediction of component behaviour in AC/DC systems, including the derivation of reliability statements is a fundamental part in this research.

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Partial Discharge and Breakdown of Solid Dielectrics under AC, DC, and Combined AC/DC High Voltage Stresses. / Saadati, Hassan.
Garbsen, 2020. 142 S.

Publikation: Qualifikations-/StudienabschlussarbeitDissertation

Saadati, H 2020, 'Partial Discharge and Breakdown of Solid Dielectrics under AC, DC, and Combined AC/DC High Voltage Stresses', Doktor der Ingenieurwissenschaften, Gottfried Wilhelm Leibniz Universität Hannover, Garbsen.
Saadati, H. (2020). Partial Discharge and Breakdown of Solid Dielectrics under AC, DC, and Combined AC/DC High Voltage Stresses. [Dissertation, Gottfried Wilhelm Leibniz Universität Hannover].
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abstract = "The penetration of energy systems with renewable energy, mostly from wind turbines which are often far from the load centres, is increasing. Furthermore, shutting down of nuclear power plants in Germany, increasing the use of photovoltaic systems, and new consumer-structures, such as electric vehicles, require a redesign in the power transmission system. As an option, integration of direct current (DC) transmission systems in the existing alternating current (AC) infrastructure is proposed. The research on dielectrics under AC voltage has taken excellent progress, but analysis on DC condition is not as well developed as that under AC. In the case of the combined AC/DC voltage, the performance of insulation systems is not well known. Therefore, more research concerning the behaviour of insulation materials in combined AC/DC systems is necessary. Development of suitable models for the prediction of component behaviour in AC/DC systems, including the derivation of reliability statements is a fundamental part in this research.",
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AB - The penetration of energy systems with renewable energy, mostly from wind turbines which are often far from the load centres, is increasing. Furthermore, shutting down of nuclear power plants in Germany, increasing the use of photovoltaic systems, and new consumer-structures, such as electric vehicles, require a redesign in the power transmission system. As an option, integration of direct current (DC) transmission systems in the existing alternating current (AC) infrastructure is proposed. The research on dielectrics under AC voltage has taken excellent progress, but analysis on DC condition is not as well developed as that under AC. In the case of the combined AC/DC voltage, the performance of insulation systems is not well known. Therefore, more research concerning the behaviour of insulation materials in combined AC/DC systems is necessary. Development of suitable models for the prediction of component behaviour in AC/DC systems, including the derivation of reliability statements is a fundamental part in this research.

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