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Modeling the terminal behavior of power system components in transient condition is of great necessity for systemlevel simulations of future DC grids. One vital component in DC grids are power electronic converters. Therefore, efficient models of power electronic converters, which model their terminal behavior, are needed for transient system-level simulations. In this paper, an approach for eliminating...
A photovoltaic (PV) panel model is at the heart of an accurate performance model for a large PV farm. This paper presents an algorithm to calculate the parameters of the one-diode model of PV modules based solely on the manufacturer's datasheets. The important feature of this algorithm is that through reformulation of the characteristic equations at various points of the current-voltage (I-V) curve,...
The dual-active bridge (DAB) is a dc-dc converter, which offers several advantages especially in high-power applications. Besides bidirectional power flow and small filter size, the converter provides galvanic isolation via a medium-frequency transformer. The converter's inherent soft-switching capability promises very high efficiency due to the reduction of switching losses. In this paper, different...
For high power converter designs, a performance screening with hundreds or thousands of configuration combinations and operation points is typically required. Standard time-domain based circuit simulators are not efficient for such screening works because of the long computation time. In this paper, a modeling and simulation methodology is presented, which is ultra-fast compared to time-domain based...
This paper focuses on a new realization method of an emitter turn-off thyristor (ETO). The low-inductive requirements for the unity gain turn-off capability of a gate commutated thyristor (GCT) led to bulky driver stages directly attached to the device. This, combined with the need for electrolytic capacitors, inherently leads to mechanical and thermal design problems, which significantly limit the...
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