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Fuel cell based auxiliary power units (APU) could be a good alternative to conventional, kerosene operated APUs. The eco efficiency could be enlarged by this technology. The dynamic characteristic of fuel cell systems necessitates an adaption of the electrical system. Using short time energy storage power delivery can be extended, demonstrated by a Matlab Simulink Simpower-Systems simulation with...
In this paper presents a power monitoring circuit for battery energy management system using operational amplifiers. The proposed scheme consists of a current sensing circuit with voltage output and an analog multiplier. The voltage output of current sensing circuit is directly proportional to load current. The multiplying result of the load current in the form of voltage signal and the load voltage...
Distributed energy resource management involves matching the production of and demand for power in electrical grids. This leads to the question, where should responsibility for resource use be placed? A number of potential management schemes exist in current work on complex large-scale distributed computer systems. This paper works towards a comparison of their relative performance. A test scenario...
The converting circuit requires high performance such as the output current with high accuracy, low ripple (les0.2 %) and full-range regulated in power accumulator battery testing system for electric vehicles (EV). In this paper, a three-phase current rectifier (CSR) is taken as the main circuit. Double-loop control strategy which is base on the feedback of grid current and the output current is used,...
With renewable energy generating rapid growth, multi-power structure optimization problem with the grid-connected PV power has been a cause of concern. This paper presents Markov decision-making process (MDP) conditions, optimal dynamic programming strategy, N-stage total expectation reward criteria and total expectation cost of MDP model in multi-power structure optimization with grid-connected PV...
Microgrid is a new concept in the arena of green power generation, which is substantially attracting many researcherspsila interest due to its potential to extend the applications of the distributed generations, especially the renewable energy. So far not much research is done on the microgrid behavior as a whole system. In this paper models for the main microsources including wind turbines, diesel...
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