Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
The goal of this paper is to investigate the application of nonlinear control technique to a multi-input multi-output (MIMO) nonlinear model of a wind energy battery-storage system using a permanent magnet synchronous generator (PMSG). The challenge is that the system should operate in both grid-connected and standalone modes while ensuring a seamless transition between the two modes and an efficient...
Recently, there has been significant research focus on smart cities and how to use resources efficiently. Parking space, in particular, is scarce in most metropolitan areas and intelligent systems are required to coordinate parking. This paper presents a wireless system for locating parking spots remotely via a smartphone, and a wireless sensor node which determines if parking spots are vacant or...
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...
In this paper, we optimize a hybrid energy storage system that includes a supercapacitor and a battery storage system for economical dispatching of the intermittent wind power source. In the optimal hybrid energy storage system, based on the technical merits of each storage, the supercapacitor is used to compensate a short-term wind power fluctuation, whereas the battery plays as a long-term one to...
This paper proposes an energy management for fuel cell electric vehicle taking into account the fuel cell degradation during its lifetime. The aim of the study is to design a control strategy which manage a power converter in order to use the fuel cell system as a range extender by preventing the batteries state of charge to drop too quickly. The presented controller use both batteries state of charge...
Electric vehicles (EVs) can help to decrease the emissions in the transport sector, especially in combination with an increase of renewable energies. However, for most of the people the comparably small range of EVs is still an obstacle concerning buying an EV. In this paper a project with a fleet test in the Ruhr-Area of Germany dealing with technologies for long distance electromobility is introduced...
In this paper, a new multi-purpose switched reluctance machine drive with charging capabilities is introduced. This topology satisfies propulsion requirements and allows single phase as well as three-phase AC charging. In charging mode, the machine windings are used as inductors and the zero torque condition is maintained by canceling out all tangential forces. Every component of the SRM drive is...
A hybrid energy source allows a designer to meet extraordinary application requirements without having to make any performance sacrifices [1]. Most available hybridisation techniques in the literature are applied to automobile applications, describing solutions to pulsed load profile characteristics [2]. This study involves an instant water heater having a load profile of 18kW to 25 kW for 30s to...
This paper proposes a bipolar-dc-bus Electric Vehicle (EV) charging station without a line-frequency transformer at the medium-voltage grid side. It is mainly composed of the Neutral Point Clamped (NPC) converter based central ac-dc station and the parallel isolated three-level dc-dc converter based fast chargers. Due to the elimination of the line-frequency transformer, the volume and cost of the...
A fuzzy based energy management unit (FBEMU) for a renewable energy system (RES) is introduced in this paper. The RES includes solar PV panel and fuel cell stack as renewable sources and Battery and hydrogen tank as storage devices. A multi-port dc-dc converter is employed to integrate the renewable energies and supply the residential load via an inverter. The proposed system is able to operate in...
A new blimp robot is developed to make a rise or descent movement easy, where four partial envelopes are arranged, centering on a gondola, and four propellers are attached around the gondola. After reviewing the structure of the proposed new body, called X4-blimp, describing the motions as the X4-blimp and several parts required as an autonomous robot, the present research mainly explains on closed-loop...
Thermoelectric Generators (TEG) can harvest a part of the thermal energy otherwise lost in the exhaust gases of vehicles and are combined with Maximum Power Point Tracking (MPPT) schemes to maximize the power output. This paper proposes a novel TEG MPPT scheme named High Frequency Injection (HFI) method. The method injects a high frequency voltage to the TEG and yields a power with a high frequency...
This paper presents the development of an electric skateboard and with a flyback switch-mode rectifier (SMR) based battery charger. An interleaving DC/DC buck converter-fed DC motor is established and used as the propulsion actuator of the skateboard. Thanks to the interleaving approach, the armature current ripple is reduced, and the fault tolerance of power circuit is preserved due to the redundancy...
A battery-ultracapacitor Hybrid Energy Storage System (HESS) combines the advantages of both Li-ion batteries and ultracapacitors. Li-ion batteries sustain a relatively long electric only driving range but degrade if exposed to high C-rates and large number of cycles. Ultracapacitors are robust, have a quasi infinite cycle life and can sustain highly dynamic power profiles. This paper proposes a HESS...
In conventional hybrid energy storage systems (HESSs), parallel bi-directional boost converters are used as interface between each storage system and the dc link. One of the disadvantages of the configuration is that during the energy transfer between two energy storage systems two converters are active which in turn lowers the overall efficiency. In this paper, a new multiple converter topology for...
This paper proposes an implementation to achieve a regenerative braking control for a dual-PMSM drive system. By using the proposed maximum efficiency searching algorithm, maximum power recovery from the braking control can be obtained. A digital signal processor, TMS 320F 2808, is used to execute all of the control algorithms, including dual-motor driving control, dual-motor regenerative braking...
This paper presents a methodology to evaluate and estimate the dispatch performance of a 30 MW PV power plant including a hybrid energy storage system (HESS) of various capacities. The HESS, consisting of a vanadium redox battery (VRB) and a supercapacitor bank (SCB) with a power rating ratio between the two energy storage technologies of 5:1, is connected at the point of common coupling (PCC) to...
This paper deals with a power management mechanism using Modular Multilevel Converter (MMC) with integrated energy storage elements, the typical use of which could be a grid-interface for a photovoltaic park or a charging park for electric vehicles. In comparison with the currently commonly used topologies of MMC, which use submodule DC/DC converters to control the submodule voltages at the half-bridge...
A Battery Management System (BMS) is needed to ensure a safe and effective operation of a Lithium-ion battery, especially in electric vehicle applications. An important function of a BMS is the reliable estimation of the battery state in a wide range of operating conditions. To this end, a BMS often uses an equivalent electrical model of the battery. Such a model is computationally affordable and...
State-of-charge estimation is vital to maximize battery performance and ensuring safe operation. The accuracy of a state-of-charge estimation technique is greatly influenced by the accuracy of the applied battery model. However, the battery model's parameters are varying with several factors, such as temperature, charge/discharge rate, usage cycle, and age. Therefore, an online battery modeling approach...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.