679 research outputs found
Uncertainty analysis of capacitor reliability prediction due to uneven thermal loading in photovoltaic applications
A New Switched-Capacitor Five-Level Inverter Suitable for Transformerless Grid-Connected Applications
A Fault-Tolerant, Passivity-Based Controller Enhanced by the Equilibrium-to-Equilibrium Maneuver Capability for the DC-Voltage Power Port VSC in Multi-Infeed AC/DC Modernized Grids
DC/DC pretvarači za motorne pogone – koncept, dizajn i unaprijedno upravljanje
Solar photovoltaics is one of the most promising technologies for the non-carbon based electricity production. Power electronics is therefore necessary. In this paper a converter is analyzed which makes it possible to control the mean value of the output voltage, this is e.g. the voltage across a DC machine (and therefore the speed) from zero up to three times of the input voltage. The converter is also useful for charging batteries. The model of the drive, the design of the devices, the control features are discussed, feed-forward control based on solving the limit cycle is designed, some experimental results, and hints for the design are given.Solarni paneli jedni su od najznačajnijih sustava za proizvodnju električne energije koja se ne temelji na ugljenu. U te svrhe nužno je korištenje učinske elektronike. U ovome radu analiziran je ispravljač koji omogućuje upravljanje srednjom vrijednosti izlaznog napona, tj. napona u odnosu na DC uređaj (stoga i upravljanje brzinom) u rasponu od nule pa do tri puta razine izlaznog napona. Ispravljač se također može koristiti za punjenje baterija. Model i dizajn uređaja zajedno sa sustavom upravljanja opisani su u radu. Prikazano je unaprijedno upravljanje temeljeno na rješavanju graničnih ciklusa, dani su eksperimentalni rezultati te su prikazane pojedinosti dizajniranja uređaja
An Isolated Bidirectional Single-Stage Inverter Without Electrolytic Capacitor for Energy Storage Systems
Power cycling test of transfer molded IGBT modules by advanced power cycler under different junction temperature swings
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