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In far-off regions without a connection to the main grid, primarily diesel generators are used for the power supply. However, hybrid energy systems such as PV-diesel-battery systems have a high potential to reduce CO2-emissions and fuel costs. As a challenge, on the one hand, smart dispatch strategies are required to compensate the limited part-load capacity of diesel generators and the volatility...
In this paper, two control strategies involving "continuous" and "ON/OFF" operation of the diesel generator in the battery-integrated hybrid system are developed, implemented and compared. The main purpose of these modeled controlled strategies is to minimize the diesel generator operation cost in standalone electricity generation processes. The simulations have been performed...
A simplified replacement model for the components of the hybrid Photovoltaic/Diesel generator/Battery system is proposed in this paper. The proposed model considers the load following control strategy which it is the most typical control strategy of this system. The proposed model aims to predict the required component's replacement actions through a specific period of time. In addition to that, maintenance...
Power management is an essential tool for microgrid (MG) safe and economic operation, particularly in the islanded operation mode. In this paper, a multi-timescale cost-effective power management algorithm (PMA) is proposed for islanded MG operation targeting generation, storage, and demand management. Comprehensive modeling, cost, and emission calculations of the MG components are developed in this...
This work deals with the development of a fuel cell — battery hybrid system for auxiliary power supply for long-haul sleeper trucks. After the introduction of the special application, the theory of hybridization was briefly explained. A system model was developed to optimize hybrid system architectures for different load profiles. Finally, exemplary results were presented using the developed system...
A hybrid control strategy for the energy management of the microgrid system consisting of a number of electric vehicles and other energy sources is proposed in this paper. The main focus of this paper is on optimal control of power flow by scheduling and demand side management of energy generation system and the load by utilizing electric vehicles' energy storage system. The features of a centralized...
The aim of this paper is to demonstrate that a dynamic simulator, taking into account temporal data of renewable sources and using energy on one year, is able to sizing each element composing the electric generation system and the storage system. The electrical system includes photovoltaic panels (PV), a wind turbine (WT), a diesel generator (DG) and a storage battery. To illustrate the sizing capability...
The power management strategy can greatly affect the fuel economy of hybrid power systems. This work presents an optimization based power management strategy of hybrid fuel cell power sources during real-time operation. In this approach, local optimization strategy is adopted because it doesn't need the priori knowledge of the future power demand. Every step, the current power demand is measured and...
High penetration of variable renewable energy generation such as photovoltaics and wind power generation will cause a supply-demand imbalance in the entire system. The mass deployment of electric vehicles (EVs) and plug-in hybrid vehicles (PHVs) will also cause significant changes in electricity demand. Therefore, controlling and managing the charging time of EVs/PHVs are imperative for power system...
The vehicle system is a multi-domain system that requires many branches of science and engineering. Therefore the development of the vehicle system requires the use of design methodologies that utilize simulations, which have grown increasingly sophisticated in recent years. This paper describes how VHDL-AMS is used to model of vehicle fuel consumption simulation. This model consists of the power-train,...
The use of diesel electric power on submarines can expose the submarine to danger from acoustic and visual detection. With an aim to reduce the amount of time the submarine is required to remain vulnerable in this way, this paper analyses a number of fuel cell diesel hybrid submarine configurations. A generic diesel electric power system model was selected as the baseline for comparison and a Simulink...
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