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This paper presents a novel control strategy for a direct drive interior permanent magnet (IPM) synchronous generator based variable speed wind turbine with controlled energy storage. The overall control system consists of a machine side converter controller, a bi-directional dc-dc converter controller for battery energy storage management and load side inverter controller for voltage and frequency...
This paper presents the performance comparison and transfer efficiency modeling and analysis of a 2-quadrant switched capacitor converter (2-Q SCC), a 4-Q SC Luo converter and interleaved SCC, applicable for hybrid electric and plug-in hybrid electric vehicles (PHEV) Energy storage system (ESS) applications. SCCs offer essential features of voltage step-down, voltage step-up, and bidirectional power...
Micro-grids that are infrastructure for implementation and utilization of renewable energy sources require high-power-density, high-energy-density storage. Composite Energy Storage System (CESS) is a combination of various energy storage technologies that offers not only above performance but also high efficiency and long life. For system management of CESS, problems of energy management and dynamic...
Battery is one of the most important energy storage devices in high power energy storage applications. It is widely used in the plug-in hybrid electric vehicles (PHEVs) and energy storage systems for renewable power generation such as wind and PV. In conventional series-connected high capacity battery string, due to the imbalance of battery cells, there are a few issues such as the cell damage due...
The goal of this paper is to address management problem of battery storage system in PEM fuel cell based hybrid power sources. Our idea of design is to utilize “feedback control” mechanism to handle possible dynamic uncertainty of hybrid power source introduced by battery failure or insert of a new battery. The detailed battery model and the converter model are derived to facilitate the development...
Several topologies have been proposed for combining batteries and ultracapacitors (UC) to build a hybrid energy storage system (HESS). It is essential to quantify the performance benefits of these different circuit topologies. This will establish a metric for evaluating the performance of new topologies as well as providing the basis to select a certain topology and design a HESS optimized for the...
This paper presents a study related to a more efficient energy management between battery and Supercapacitors (SC) for Hybrid Electric Vehicle (HEV) applications. This idea is due to the present trend in the field, knowing that the major drawback of the HEV is the autonomy problem. Thus, using supercapacitors and battery with a good energy management strategy improves the HEV performances. The originality...
This paper presents a novel fully soft switched bidirectional PWM dc-to-dc. Providing soft switching conditions for all elements and minimizing the semiconductor elements are two of the most important properties of this converter. The proposed bi-directional converter is inserted as an interface circuit between DC bus and battery in a Hybrid Electric Vehicle to control the charge and discharge current...
Plug-in hybrid electric vehicles (PHEVs) have a larger battery pack which can be charged from an AC outlet. This paper deals with an integrated module which can power the electric propulsion machine (defined as Mode-1 further in this paper), can charge the battery pack during the process of regeneration (defined as Mode-2), can charge the battery pack from AC outlet (defined as Mode-3) and can be...
Conventional fossil fuel powered unmanned aerial vehicle (UAV) has limited flight range which totally depends on the fuel it carries. Too much fuel on board is not possible for the airplane application due to weight limitation. In addition, fossil fuels produce emissions and pollutants. The most favourable candidate energy source to power the UAVs is solar energy. With the PV panel and energy storage...
This paper presents the behaviour of a hybrid system based on renewable sources (wind and solar) with their stochastic behaviour and a pre-programmed timed load profile. The goal is the analysis of a small hybrid system in the context of new services that can be offered to the grids as a power generator. Both the sources have continuous maximum power extraction where the Maximum Power Point Tracking...
Hybrid electrical power sources are one of the future trends in the area of power sources. They can be composed of many interacting components such as electrical generator sets with optimum variable speeds or constants speeds, photovoltaic sources with maximum power tracker, wind power generators, fuel cells and batteries. Hybrid electrical power sources initially developed and produced mainly for...
This paper explores a new breed of energy storage system interfacing for grid connected photovoltaic (PV) systems. The proposed system uses the popular dual inverter topology in which one inverter is supplied by a PV cell array and the other by a Battery Energy Storage System (BESS). The resulting conversion structure is controlled in a way that both demand matching and maximum power point tracking...
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