FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2999360024> ?p ?o ?g. }

• W2999360024 abstract "The performance of systems used in various high voltage applications depend majorly on the output voltage ripple of High Voltage Power Supplies (HVPS). One of the failure mode of microwave tube (MWT) commonly used in these applications is due to the energy accumulation above the specified limit during fault events due to higher stored energy in HVPS. This demands either a protection for MWT or reduced ripple voltage without increasing the stored energy.This thesis investigates a protection device for MWT that operate with MW power level HVPS, and design method to reduce the output voltage ripple for medium power HVPS.A crowbar is an energy diverting device connected in parallel with the MWT. It protects the tube during fault by providing an alternative path for the ow of energy. Conventional crowbars are built using either mercury or nitrogen gas-based switches. Due to the environmental concern and higher operational cost, the state-of-the-art is to replace these devices with semiconductor devices, referred to as solid state crowbar (SSC). This research, models and designs the subcomponents of an SSC, including: (i) Modelling of fault current, and a fuse wire that is used to emulate a MWT during internal arc (ii) Design of di=dt limiting inductor (iii) Design of static and dynamic voltage balancing network for the thyristor (iv) Mechanical assembly design that ensures meeting the required crowbar electrical characteristics (v) Selection of cost-effective semiconductor device for crowbar application (vi) Thermal modelling of crowbar for pulse power applications (vii) Selection of cable for the pulse power application.In a switched converter topology, the causes of output voltage ripple are: the switch action, input dc ripple, and variations in the load. In this thesis the influence of input voltage ripple on the output dc voltage, called Audio Susceptibility (AS), is discussed. AS of load resonant converters has not been widely studied in literature. This research uses exact discretization method to obtain: (i) The analytical large signal and cyclic steady state model of the Series Resonant Converter (SRC) considering the resonant tank and output filter states (ii) The analytical small signal AS model of the SRC, and resonant gain condition for input ripple (iii) The design of an SRC for superior AS performance (iv) A comparison of SRC design for (a) superior AS performance and (b) maximum power transfer capability (v) A selection of SRC components including the high voltage high frequency magnetics and selection of the MosFET. All the modelling and design method considered in this work has been verified by experimental studies on two 10MW, 10kV peak power SSC and a 10kW, 10kV SRC that has been fabricated as a part of the research." @default.
• W2999360024 created "2020-01-23" @default.
• W2999360024 creator A5070557054 @default.
• W2999360024 date "2019-12-05" @default.
• W2999360024 modified "2023-09-22" @default.
• W2999360024 title "Power Electronic Technologies for Medium and High Power High Voltage Power Supplies" @default.
• W2999360024 hasPublicationYear "2019" @default.
• W2999360024 type Work @default.
• W2999360024 sameAs 2999360024 @default.
• W2999360024 citedByCount "0" @default.
• W2999360024 crossrefType "dissertation" @default.
• W2999360024 hasAuthorship W2999360024A5070557054 @default.
• W2999360024 hasConcept C119599485 @default.
• W2999360024 hasConcept C121922863 @default.
• W2999360024 hasConcept C127413603 @default.
• W2999360024 hasConcept C165801399 @default.
• W2999360024 hasConcept C2780655974 @default.
• W2999360024 hasConcept C88182573 @default.
• W2999360024 hasConceptScore W2999360024C119599485 @default.
• W2999360024 hasConceptScore W2999360024C121922863 @default.
• W2999360024 hasConceptScore W2999360024C127413603 @default.
• W2999360024 hasConceptScore W2999360024C165801399 @default.
• W2999360024 hasConceptScore W2999360024C2780655974 @default.
• W2999360024 hasConceptScore W2999360024C88182573 @default.
• W2999360024 hasLocation W29993600241 @default.
• W2999360024 hasOpenAccess W2999360024 @default.
• W2999360024 hasPrimaryLocation W29993600241 @default.
• W2999360024 hasRelatedWork W2035144705 @default.
• W2999360024 hasRelatedWork W2045653654 @default.
• W2999360024 hasRelatedWork W2052994937 @default.
• W2999360024 hasRelatedWork W2065837307 @default.
• W2999360024 hasRelatedWork W2093734630 @default.
• W2999360024 hasRelatedWork W2108590408 @default.
• W2999360024 hasRelatedWork W2141441836 @default.
• W2999360024 hasRelatedWork W2155412181 @default.
• W2999360024 hasRelatedWork W2165113781 @default.
• W2999360024 hasRelatedWork W2167183101 @default.
• W2999360024 hasRelatedWork W2330948357 @default.
• W2999360024 hasRelatedWork W2352621173 @default.
• W2999360024 hasRelatedWork W2357989929 @default.
• W2999360024 hasRelatedWork W2377548684 @default.
• W2999360024 hasRelatedWork W2470060779 @default.
• W2999360024 hasRelatedWork W2942131354 @default.
• W2999360024 hasRelatedWork W3005631375 @default.
• W2999360024 hasRelatedWork W3095472711 @default.
• W2999360024 hasRelatedWork W3192598553 @default.
• W2999360024 hasRelatedWork W3208230203 @default.
• W2999360024 isParatext "false" @default.
• W2999360024 isRetracted "false" @default.
• W2999360024 magId "2999360024" @default.
• W2999360024 workType "dissertation" @default.