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The importance of energy storage technologies is being recognised by more and more power system professionals lately. If properly designed, installed and operated, storage can provide flexibility, and be a valuable component of future electricity networks. Although regulatory and market conditions still have to be improved, the potential of energy storage is unequivocal. As power companies are seeking...
In this paper, the switching flow-graph models are developed to study the nonlinear behavior of DC-DC switching converters. Based on the concept of virtual switches and virtual switching functions, switching flow-graph (SFG) model are created easily without complex mathematics. The SFG modeling technique is helpful for undergraduate students or beginners to understand how the switching converters...
In this paper, a multipurpose model of a proton exchange membrane fuel cell for household appliances is proposed. According to a conventional mathematical approach, the proposed model is derived from the physical and electro-chemical equations that rule the fuel cell behaviour. Differently from existing models, a parametric analysis is carried out and a few tunable parameters are accurately selected...
Resonant converters offer an efficient alternative to linear supplies for pulsed electrochemical processes. This paper presents an open loop and closed loop comparison between the dc-dc series and series-parallel resonant converters for a pulsed 500 W load. Placing restrictions on the resonant tank parameters proves necessary to achieve continuous transient waveforms. Generalized averaging is applied...
A simplified dc equivalent model of a series compensated pickup in an Inductive Power Transfer (IPT) system is derived along with design equations to replace rule of thumb guidelines used in the selection of the regulator capacitor. The design of the regulator capacitor and its effect on circuit behaviour is verified under both simulated and experimental conditions at rated load and light load.
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