Matches in SemOpenAlex for { <https://semopenalex.org/work/W2989743031> ?p ?o ?g. }
Showing items 1 to 88 of
88
with 100 items per page.
- W2989743031 abstract "This work presents three methods of resistive balancing for a high voltage switch, that is formed by the series connection of press-pack IGBTs, namely the Director Switch (DS). The switch is a key component that enables two novel HVDC Voltage Sourced Converter (VSC) topologies: the Alternate-Arm Converter (AAC) and the Series Bridge Converter (SBC), which offer fault-blocking capability, a better efficiency, cost and size than the established Modular Multilevel Converter (MMC) solution. An important DS requirement is that the gate electronics for each IGBT shall be self-powered, as breaching the high voltage insulation barrier to ground to provide auxiliary power is unfeasible. This is achieved by storing energy in a capacitive clamp snubber on each IGBT level, which then powers a DC-DC converter. However, due to the constant power load, or negative impedance of the electronics, the capacitor and collector-to-emitter voltage of the IGBTs soon becomes highly imbalanced during operation, causing some of the levels to turn-off, others to take a very high voltage share. A way of maintaining voltage balance is to introduce or emulate a resistive load that can overcome the negative impedance of the electronic load. This is achieved in three different ways. At start up, when a higher current than normal is required, a resistive current is emulated by enabling that higher demand only when the switch voltage is above a given threshold. During operation, a protective crow-bar resistor of a low-ohmic value is modulated with a fixed duty ratio, to emulate a higher resistive value than that present. Finally, a resistive load can be directly connected across the clamp snubber capacitor. All these techniques are complementary and can be used simultaneously. The successful operation of these three techniques is demonstrated by showing experimental results on a 7-level switch, using 2.5 kV press-pack IGBTs." @default.
- W2989743031 created "2019-12-05" @default.
- W2989743031 creator A5018031543 @default.
- W2989743031 creator A5030864596 @default.
- W2989743031 creator A5053163950 @default.
- W2989743031 creator A5067621714 @default.
- W2989743031 creator A5068379647 @default.
- W2989743031 date "2019-09-01" @default.
- W2989743031 modified "2023-09-25" @default.
- W2989743031 title "Resistive balance compensation of a self-powered high voltage switch using series connected IGBTs for HVDC applications" @default.
- W2989743031 cites W1915388693 @default.
- W2989743031 cites W2007098949 @default.
- W2989743031 cites W2014834882 @default.
- W2989743031 cites W2073046423 @default.
- W2989743031 cites W2188533375 @default.
- W2989743031 cites W2530571183 @default.
- W2989743031 cites W2540195289 @default.
- W2989743031 cites W2559891093 @default.
- W2989743031 cites W2742461864 @default.
- W2989743031 cites W2749545690 @default.
- W2989743031 cites W2782631468 @default.
- W2989743031 cites W2905986954 @default.
- W2989743031 cites W2281135720 @default.
- W2989743031 cites W2286741907 @default.
- W2989743031 doi "https://doi.org/10.23919/epe.2019.8915138" @default.
- W2989743031 hasPublicationYear "2019" @default.
- W2989743031 type Work @default.
- W2989743031 sameAs 2989743031 @default.
- W2989743031 citedByCount "2" @default.
- W2989743031 countsByYear W29897430312020 @default.
- W2989743031 countsByYear W29897430312021 @default.
- W2989743031 crossrefType "proceedings-article" @default.
- W2989743031 hasAuthorship W2989743031A5018031543 @default.
- W2989743031 hasAuthorship W2989743031A5030864596 @default.
- W2989743031 hasAuthorship W2989743031A5053163950 @default.
- W2989743031 hasAuthorship W2989743031A5067621714 @default.
- W2989743031 hasAuthorship W2989743031A5068379647 @default.
- W2989743031 hasConcept C119599485 @default.
- W2989743031 hasConcept C127413603 @default.
- W2989743031 hasConcept C137488568 @default.
- W2989743031 hasConcept C15703209 @default.
- W2989743031 hasConcept C165801399 @default.
- W2989743031 hasConcept C178911571 @default.
- W2989743031 hasConcept C28285623 @default.
- W2989743031 hasConcept C41008148 @default.
- W2989743031 hasConcept C52192207 @default.
- W2989743031 hasConcept C58018660 @default.
- W2989743031 hasConcept C88182573 @default.
- W2989743031 hasConcept C95023266 @default.
- W2989743031 hasConceptScore W2989743031C119599485 @default.
- W2989743031 hasConceptScore W2989743031C127413603 @default.
- W2989743031 hasConceptScore W2989743031C137488568 @default.
- W2989743031 hasConceptScore W2989743031C15703209 @default.
- W2989743031 hasConceptScore W2989743031C165801399 @default.
- W2989743031 hasConceptScore W2989743031C178911571 @default.
- W2989743031 hasConceptScore W2989743031C28285623 @default.
- W2989743031 hasConceptScore W2989743031C41008148 @default.
- W2989743031 hasConceptScore W2989743031C52192207 @default.
- W2989743031 hasConceptScore W2989743031C58018660 @default.
- W2989743031 hasConceptScore W2989743031C88182573 @default.
- W2989743031 hasConceptScore W2989743031C95023266 @default.
- W2989743031 hasLocation W29897430311 @default.
- W2989743031 hasOpenAccess W2989743031 @default.
- W2989743031 hasPrimaryLocation W29897430311 @default.
- W2989743031 hasRelatedWork W1584651395 @default.
- W2989743031 hasRelatedWork W1967402825 @default.
- W2989743031 hasRelatedWork W1984546741 @default.
- W2989743031 hasRelatedWork W2017507922 @default.
- W2989743031 hasRelatedWork W2143182093 @default.
- W2989743031 hasRelatedWork W2164480159 @default.
- W2989743031 hasRelatedWork W2322929070 @default.
- W2989743031 hasRelatedWork W2332732571 @default.
- W2989743031 hasRelatedWork W2427706712 @default.
- W2989743031 hasRelatedWork W2539037336 @default.
- W2989743031 hasRelatedWork W2592552626 @default.
- W2989743031 hasRelatedWork W2783270789 @default.
- W2989743031 hasRelatedWork W2791125226 @default.
- W2989743031 hasRelatedWork W2810238381 @default.
- W2989743031 hasRelatedWork W2885567392 @default.
- W2989743031 hasRelatedWork W2910821188 @default.
- W2989743031 hasRelatedWork W2942722569 @default.
- W2989743031 hasRelatedWork W2999185306 @default.
- W2989743031 hasRelatedWork W3118150928 @default.
- W2989743031 hasRelatedWork W3141322821 @default.
- W2989743031 isParatext "false" @default.
- W2989743031 isRetracted "false" @default.
- W2989743031 magId "2989743031" @default.
- W2989743031 workType "article" @default.