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Carsharing has the potential to reduce the total number of cars on the road, with significant benefits to the society and the environment, while at the same time relevant studies show that university communities are often more receptive to alternative transportation services compared to the general population. With the growing interest in electromobility, as a means of decarbonizing the transportation...
This paper presents a new single inductor Dual Input-Dual Output dc-dc converter for a standalone hybrid energy system. The converter has two unidirectional ports, one bidirectional port for storage element and one output port. The converter operates in dual input-dual output mode, dual input-single output mode and single input-single output mode. Both the input sources can power up the load individually...
The application and research interest over utility-scale battery energy storage systems have grown significantly over the last years. To achieve utility-scale, series and/or parallel connection of many battery packs with power rating of a few hundreds kilowatts each is the most viable technology at present. The major challenge regarding the connection of battery packs is charging imbalance. This paper...
Aggregators in smart grid are business operators providing services to aggregate and visualize electricity information, balance demand and supply, reduce energy consumption, and do the other activities with Energy Management Systems (EMSs). An aggregator for Apartment Building Energy Management Systems (Apartment-BEMSs) balances demand and supply considering all households in its building. The buildings...
It presents a cascaded boost dc-to-dc converter employing a tapped-inductor to obtain a high voltage boosting ratio. It consists of two voltage boosting stages. Stage-I configures like boost converter, and Stage-II is designed by using a tapped-inductor. Both stages have a cascaded connection to maximize a voltage boosting ratio between input and output voltage. After theoretical analysis, computer-aided...
The present work deals with a new energy management control scheme to regulate the battery discharge/charge rates (rate-limit) for a hybrid energy storage system (HESS), consisting of battery and supercapacitor. In general, batteries are used to supply slow transient (or steady state) load demand, due to its inherent properties of low power density and high energy density. The state of charge (SOC)...
Rural electrification is now one of the most important objective of a developing country like India. According to Electricity Act 2003, the government of India decided to electrify all villages that were not yet electrified. To achieve this target, new hybrid renewable energy system is necessary in the rural area where the energy consumption pattern is low due to very limited number of end use devices...
Assessing and optimizing the functionality of the various microelectronic components of the powertrain of battery propelled vehicles, is a crucial pre-request to further develop and make sure the electronics could fit well in practical applications. For this purpose, dedicated modeling, simulation and analysis methods have been developed. First parameterizable multi-disciplinary system models, covering...
Mashhad Electric Energy Distribution Company (MEEDC) has designed and implemented the first local micro-grid in Mashhad which is called “MehrSun”. This article presents the performance analysis and result assessment of Mehrsun after working for one year. Different micro-grid elements and the connections with local power network are explained and the level of home automation which is implemented for...
One of the most important challenges in heterogeneous wireless sensor network (WSN) is to design a routing protocol that use energy efficiently to prolong the lifetime of the entire network due to the limited battery power of sensor nodes. To solve this problem, in this paper, we propose Sector-Chain Based Clustering (SCBC) Routing Protocol, in which, entire network area is divided into sectors (clusters),...
In this paper, a novel architecture for charging mode controller of Li-Ion battery charger is proposed. It is design to generate stable control signals even when noise level reaches several tens of millivolts. The trickle current is as low as 200mA enabling longer life cycle for Li-Ion battery. The large current reaches 1A without any impact on trickle current offering a faster charging time for Li-Ion...
Road transportation is one of the main sources of environmental pollution. Electrification seems like the ideal solution for reducing CO2 emissions, while maintaining all the advantages of modern means of transportation. The shift to electric vehicles needs to be accompanied by an appropriate telecommunications network, which is responsible for the reliable transmission of large volumes of information...
This paper presents a model of battery powered electric vehicle with computer algorithm for calculation of optimal energy components. The goal of the research was to create a system which can optimize the vehicle battery and motor for the given driving cycle thus minimizing equipment expenses. Furthermore, paper describes tested vehicle, vehicle components modelling, measurement acquisition process,...
In this paper, a four-port DC-DC converter is proposed for applications in a grid-connected integrated solar PV and energy storage system. The four ports of the converter are one input source, one bidirectional port, and two output ports. The bidirectional port can be used to integrate the energy storage system to the solar PV generation system, while the two outputs provide the flexibility to supply...
Standard Voltage Source Inverters (VSI) operates with a DC voltage source greater than the peak voltage of the AC source and Current Source Inverters (CSI) with a DC voltage source lower than the peak voltage of the AC source. This paper shows how several topologies of reversible AC/DC buck-boost inverters which do not suffer from such constraints can be compared on the basis of semiconductor and...
Simulation of prototype vehicle architectures is an indispensable step for the development of new transport solutions innovative for what concerns energy efficiency and user customization. In this paper, a simulation framework based on the Modelica language is presented and included as an important tool in the phase of preliminary design of a light duty hybrid electric vehicle. The proposed framework...
This paper presents a new power sharing approach among parallel battery storage systems within an autonomous microgrid. The proposed approach considers the state of charge (SoC) of the batteries to control the ratio of their output powers. To facilitate this, a new SoC-based droop control is proposed. In this method, the ratio of output power for all the batteries is determined as a function of their...
Energy efficiency is a key concern for wireless sensor nodes, especially for wireless body area network (WBAN) in which sensors operate in close vicinity to, on or even inside a human body. In this paper, we first present a system-level energy consumption model associated with transmission distance $d$ and transmission data rate over on-body wireless communication link. Then, based on the analysis...
The constant evolution of electricity grids towards smart grids is changing the paradigm. The intelligent layer which is added over the physical one is bringing a change in the mode in which the electricity is provided. Hence, the electricity providers are shifting their business from product-centered to service-centered ones, change that ensure a better use of their resources and a much wider acceptance...
With characteristics of high efficiency, low energy consumption and zero emission, pure electric vehicle is an effective solution for the recent energy crisis and environmental issues. This paper develops a pure electric vehicle control strategy that will be used on ENRANGER G3 — a compact SUV model by Wei Chai Motor. A hardware in the loop (HIL) test platform was constructed accordingly. The platform...
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