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Instability problem is known to be a big issue of the DC distributed power system (DC DPS). The impedance-based stability-assessment methods have turned out to be very effect tools and are proposed for “voltage-source system” and “current-source system”, respectively. However, these methods may not be suitable choices in standalone photovoltaic (PV) system with battery energy storage. Due to variation...
In this paper, a market demand driven modeling framework is developed. The market demand is modeled as an end-of-line virtual machine based on which the market demand dissatisfaction (MDD) can be measured as production loss using event-based analysis. A general Markovian continuous-flow model is developed for market demand-driven systems with multistage production networks combining manual and automatic...
In this paper, an asymmetrical ΓZ-source hybrid power converter is proposed for fuel cell-battery hybrid vehicle application. The converter uses an asymmetrical ΓZ-source converter to interface the fuel cell and a bidirectional DC-DC converter to interface the battery. Via the DC-DC converter, the capacitor voltage of the asymmetrical ΓZ-source converter can be controlled into a constant value. By...
This paper considers a reassemble-to-order system for modular products with admission control on product returns in a remanufacturing environment. Customer warranty claims trigger orders for product replacement by new or remanufactured products. At the same time, the warranty claims also generate returns of used products. The return process of used products is a stochastic process with uncertainties...
Low cost and high reliability are the main issues considered in power converter design for hybrid electric vehicle. In this paper, a hybrid power converter is proposed for the power flow control of the battery-fuel cell hybrid electric vehicle. The converter consists of a unidirectional Γ Z-sourceconverter and a bidirectional DC-DC converter. By controlling the voltage of the Z source capacitor and...
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