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Numerous case studies have been performed on both large and small scale Hybrid Integrated Renewable Energy Systems (HI-RES) over the past decade to ascertain the benefits of combining various forms of renewable and nonrenewable energy sources. Many of these studies have produced test and verification results obtained through iterative simulations, optimization and sensitivity analyses to aid in understanding...
In this paper, a stochastic model of plug-in hybrid electric vehicles' (PHEV) charging loads is developed in Matlab to investigate its impact on the power grid. In this model, two main types of PHEVs are defined: public transportation vehicles and private vehicles. Different charging time schedules, charging speeds and battery capacities are considered for each type of vehicles. The simulation results...
Fuel cell/ultracapacitor/battery hybrid power systems represent a promising architecture to satisfy the energy requirements for road vehicles. When the primary power source is a fuel cell, the objective of an energy management strategy is to optimize the hydrogen consumption as well as the efficiency without compromising the performance of the overall system. In order to achieve these goals, fuzzy...
In this paper, a new control strategy is proposed for a stand-alone fuel cell-battery hybrid power supply system. This new control strategy can both meet the high peak power load demand and preserve a high energy density and thus ensures a high quality power supply. The fuel cell output current is adjusted according to state of charge and voltage of the battery. The battery is charged in a proper...
Diesel generators often supply electric power to isolated islands and off-grid remote loads. In remote locations, the cost of fuel can be very high due to the limited accessible transportation. Inclusion of renewable energy into diesel-based grids results in a hybrid renewable energy system (HRES) and can reduce fuel consumption and environmental pollution. However, the output variability of renewable...
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