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Wyświetlanie 1-9 z 9
Tytuł:
Podstacje trakcyjne prądu stałego z rekuperacją energii hamowania pojazdów
DC traction substations recuperating braking energy of vehicles
Autorzy:
Drozdowski, P.
Duda, A.
Powiązania:
https://bibliotekanauki.pl/articles/253119.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
energia hamowania
podstacja trakcyjna
hamowanie odzyskowe
braking energy
traction substation
regenerative braking
Opis:
W niniejszym artykule zaprezentowano układy przekształtnikowe podstacji trakcyjnych z rekuperacją energii hamowania odzyskowego pojazdów, tj. układ podstawowy z impulsowym falownikiem rekuperacyjnym, w pełni sterowany układ z prostownikiem tyrystorowym i falownikiem impulsowym, układ z mostkiem tyrystorowym pracującym jako falownik i szeregowymi tyrystorami odcinającymi oraz układ z mostkiem tyrystorowym pracującym jako falownik i równoległymi tyrystorami odcinającymi. Wskazano na wady i zalety omawianych rozwiązań oraz przedstawiono metoda uproszczonego obliczenia bilansu energetycznego jazdy i hamowania odzyskowego pojazdu.
The DC traction substations are usually composed of the 3-phase transformer and the output diodę rectifier. So, such deWces do not allow for energy recuperation from the DC side to AC 3-phase mains. The energy recuperation is demanded for regenerative braking of traction drives with pulse converters (inverters for induction motors and choppers for DC motors). In this paper four technical solutions (Fig. 4) allowing for braking energy recuperation are discussed. This can be considered as the modemisation of the existing traction substations in the railway and the municipal traction. Such solutions indicate for three profits: energy recuperation, mechanical brakes saving and enhanced ąuality of traction vehicle control. The proposed converters are compared indicating indMdual advantages and draw-backs. Additionally the method ofsimplified calculation of energy balance of consumed and recuperated energy in the traction network has been presented in Chapter 2.
Źródło:
TTS Technika Transportu Szynowego; 2016, 11; 39-43
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Examining the braking energy recovery in a vehicle with a hybrid drive system
Badania odzysku energii hamowania pojazdu o napędzie hybrydowym
Autorzy:
Gajek, A.
Strzępek, P.
Powiązania:
https://bibliotekanauki.pl/articles/1364003.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
vehicle with a hybrid drive system
regenerative braking
braking energy
braking power
pojazd o napędzie hybrydowym
hamowanie odzyskowe
energia hamowania
moc hamowania
Opis:
Results of examining the braking energy recovery in a passenger car with a hybrid system driving the front wheels have been presented. The tests were carried out on a vehicle with a series-parallel system, which combined an internal combustion engine with an electric motor. Such a system makes it possible to change the electric motor operation mode so that it becomes a generator, which charges a high-voltage battery with the use of the vehicle braking energy. The battery charging current was measured at braking with various vehicle deceleration values. The algorithm of controlling the battery charging current, the share of the energy recovered in the total braking energy, and the power of the regenerative braking in relation to the total braking power demand were analysed. The instantaneous power demand at braking on a horizontal road with a low rolling resistance coefficient was determined. The share of the electric power in the energy balance of the braking process as well as the demand and recovery of energy during this process were examined.
W artykule przedstawiono wyniki badań odzysku energii hamowania osobowego samochodu o napędzie hybrydowym kół przednich. Badaniom poddano pojazd z szeregowo równoległym, spalinowo-elektrycznym, hybrydowym układem napędowym. Układ ten umożliwia zamianę rodzaju pracy silnika elektrycznego na pracę prądnicową i ładowanie baterii wysokonapięciowej z wykorzystaniem energii hamowania. Wykonano pomiary prądu ładowania baterii podczas hamowania przy różnych opóźnieniach ruchu pojazdu. Przeanalizowano algorytm sterowania prądem ładowania, udział energii odzyskanej w stosunku do całkowitej energii hamowania oraz moc hamowania odzyskowego w stosunku do całkowitego zapotrzebowania mocy hamowania. Przedstawiono chwilowe zapotrzebowanie mocy przy hamowaniu na jezdni poziomej o niewielkim współczynniku oporów toczenia. Przebadano udział mocy elektrycznej w bilansie energetycznym hamowania oraz zapotrzebowanie i odzysk energii podczas procesu hamowania.
Źródło:
Archiwum Motoryzacji; 2015, 68, 2; 49-60
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical and legal determinants of energy conversion in electric vehicle equipped with energy recovery system
Autorzy:
Juda, Z.
Powiązania:
https://bibliotekanauki.pl/articles/247926.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
regenerative braking
energy conversion
Opis:
Regenerative braking in electric or hybrid driven vehicles is now commonly used feature. Development of technologies of electrical machines, secondary energy sources, power electronics and control systems allows for more efficient using of this attribute. Regenerative braking system converts the kinetic energy of moving vehicles on this form of energy that you can store in a secondary source of energy. The most common form of energy after conversion is electricity, easy to store in batteries or supercapacitors. There also are known systems with storage of mechanical energy (high-speed flywheels with composite rotors). Drive systems with optional regenerative braking should take into account a number of aspects influencing the process. It is very important to maintain the stability of the vehicle movement during braking. Another important aspect is the cooperation of regenerative braking system with conventional, mechanical brake system of the vehicle driven by a single axis. Sizing of the electrical machine (or machines) is associated with the needs of the propulsion of the vehicle, which limits the amount of absorbed energy in the initial stage of braking. Individual elements of the system energy conversion efficiency chain complexity affect the energetic results of this process. On the energy, efficiency of the process of braking energy recovery affects string conversion efficiency in the individual components of the system. Regenerative braking is the important factor, which could improve electric vehicle market chances, particularly in the city or neighbourhood personal transport. The article contains a description of the technical and legal circumstances of the process of regenerative braking and energy aspects of this process.
Źródło:
Journal of KONES; 2016, 23, 4; 193-199
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The analysis of energy recovered by an electric vehicle during selected braking manoeuvres
Autorzy:
Szumska, Emilia M.
Adriana, Skuza
Jurecki, Rafał
Powiązania:
https://bibliotekanauki.pl/articles/2200809.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
regenerative braking
regenerative energy
electric vehicle
vehicle testing
Opis:
Electrical vehicles have the ability to partially recover some kinetic energy during braking. Kinetic energy is transformed into electric energy, which is fed to the battery by the control system and stored there for further use. The aim of this paper was to analyse the levels of energy recovered by an electric vehicle during braking at various speeds and with different braking intensities. The first phase of testing consisted of vehicle braking tests in real-life conditions. The registered speed profiles were then used as input data for the simulation software. The authors have also analysed the effect of the state of charge of the battery and of the vehicle’s load on the amount of energy recovered during braking. The performed simulation tests demonstrated that the level of recovered energy is significantly affected by the initial braking speed and by the force of pressure applied to the brake pedal. The amount of recovered energy is less affected by the state of charge (SOC) of the battery and by the vehicle’s load. Energy regeneration during braking is currently an important research topic. The efficiency of an electric vehicle depends on the range, which can be extended thanks to the additional energy recovered during braking maneuvers. The presented preliminary simulation results are intended to assess the level of energy recovery in electric vehicles. The authors are aware that a full, comprehensive analysis requires additional research using electric vehicles that will verify the results presented in the paper.
Źródło:
Archiwum Motoryzacji; 2023, 99, 1; 18--29
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of the efficiency of braking energy recovery in rail transport by changing arrival time
Autorzy:
Urbaniak, M.
Kardas-Cinal, E.
Powiązania:
https://bibliotekanauki.pl/articles/214921.pdf
Data publikacji:
2018
Wydawca:
Instytut Kolejnictwa
Tematy:
rail transport
regenerative braking
optimization of energy recuperation
traffic organization
Opis:
The article refers to the previous work of the authors, in which the model of traffic organization of cooperating trains including the optimization of the use of energy returned to the catenary was presented. In the presented article, the model was modified by changing the main control variable, which affects the efficient use of energy. Departure time was changed for the arrival time of the train to the stop or station. The optimization is done by controlling the arrival time to the station in the acceptable (scheduled) range while maintaining the scheduled departure time. This model assumed optimization using the interval halving method (bisection) to achieve the optimal solution. The modified optimization method has been implemented in the original model of railway traffic organization. It considers the optimal use of energy recovered during electrodynamic braking using the energy transmission strategy to the catenary, assuming the cooperation of a train pair and volume of all recovered energy and stop time at the station.
Źródło:
Problemy Kolejnictwa; 2018, 180; 133-139
0552-2145
2544-9451
Pojawia się w:
Problemy Kolejnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metody wykorzystania energii z rekuperacji w transporcie szynowym
Methods of recuperation energy management in rail transport
Autorzy:
Urbaniak, M.
Jacyna, M.
Kardas-Cinal, E.
Powiązania:
https://bibliotekanauki.pl/articles/251571.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
transport szynowy
energia
rekuperacja
hamowanie odzyskowe
rail transport
energy
regeneration
regenerative braking
Opis:
W artykule przedstawiony został przegląd metod wykorzystania energii pochodzącej z hamowania odzyskowego. Wśród znanych i stosowanych w praktyce metod wymieniono wykorzystanie odzyskanej energii na nietrakcyjne potrzeby własne pojazdu, magazynowanie odzyskanej energii w zasobnikach (pokładowych lub stacjonarnych) i wykorzystywanie jej w razie potrzeby, transformację i zwrot odzyskanej energii do krajowej sieci zasilania, a także moż-liwość przesyłu odzyskiwanej energii z powrotem do sieci jezdnej i wykorzystanie jej przez inne pojazdy mające zapotrzebowanie na taką energię (np. w fazie rozruchu). Pokrótce omówiono zasady działania wymienionych metod, wskazano ich wady i zalety oraz podano przykłady zastosowania w praktyce. W podsumowaniu stwierdzono, że wskazane byłoby połączenie tych metod w zintegrowany system odzysku energii i zaproponowano ogólny schemat takiego systemu.
This article presents a review of methods for management of energy gained from regenerative braking. Among known and applied methods, the following are specified: using the recovered energy for non-traction own needs of the vehicle, storing the recovered energy in energy storage system (on-board or stationary) and its later use when needed, transformation and return of the recovered energy to the domestic power grid, and also the possibility of transferring the recovered energy to the traction network and its use by other vehicles (e.g., in during their acceleration phase). The principles of these methods are shortly described, their advantages and shortcomings are pointed out, and the practical applications are given. In summary, it is concluded that it would be advantageous to combine these methods into an integrated system of energy regeneration and a general scheme of such a system is proposed.
Źródło:
TTS Technika Transportu Szynowego; 2016, 12; 355-359
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies of electric drive with hydrostatic support
Autorzy:
Grzesikiewicz, W.
Makowski, M.
Knap, L.
Pokorski, J.
Powiązania:
https://bibliotekanauki.pl/articles/243753.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
hybrid drive
energy consumption
energy efficiency
regenerative braking
city traffic
napęd hybrydowy
zużycie energii
efektywność energetyczna
hamowanie regeneracyjne
ruch miejski
Opis:
In this article, results of experimental studies concerning the relief of a city car electric drive by means of hydrostatic drive support are presented. Experimental studies were performed using a laboratory station built for this particular purpose. Studies of basic properties of elements of hydraulic system and resistances in the mechanical system were performed. The results of experimental studies of a chosen sub-assembly of hydrostatic drive (i.e. hydro-pneumatic battery) are given. The resistances within mechanical system (flywheel) were determined. In the considered hybrid drive, electric drive is cyclically supported by hydrostatic drive during acceleration or regenerative braking of the vehicle. The results of experimental studies presented in this article were obtained on a designed and built laboratory station representing a model of a lightweight delivery van for city traffic and equipped with the studied hybrid drive. The obtained results suggest that there is a possibility considerably to increase the effectiveness of energy conversion in the electric drive of the vehicle by means of hydrostatic support. By applying the hydrostatic support in the electric drive, the load on the electric battery decreased, which positively influences the length of operation time.
Źródło:
Journal of KONES; 2018, 25, 1; 265-274
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The possibility of energy consumption reduction using the ECO driving mode based on the RDC test
Autorzy:
Cieślik, Wojciech
Szwajca, Filip
Golimowski, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2097469.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
electric vehicle
energy flow
regenerative braking
powertrain
driving mode
pojazd elektryczny
przepływ energii
hamowanie odzyskowe
układ napędowy
tryb jazdy
Opis:
The greenhouse effect and overall climate changes are the main reasons for developing ecological powertrain units dedicated to road vehicles. An electrical drivetrain without using conventional combustion engines fueled by hydrocarbon fuels is an effective method to significantly reduce CO2 emissions from the fleet. It is particularly vital in 2020 emission regulations aspects, and continuously the number of vehicles increasing. In this paper battery electric drive system of a small size passenger car was analyzed in terms of two different drive modes in cooperation with two recuperative braking modes. The research was carried out with real driving condition test requirements and driving parameters recording. Based on data obtained from OBD signals, energy flow and torque distribution have been specified. In results, overall reducing energy consumption has been achieved with ECO mode compared to normal mode. Selection of the driving mode ECO has a positive impact on reducing the state of charge saving more than 5%, taking into account the whole RDC test; greater energy consumption reductions were observed in selected test areas.
Źródło:
Combustion Engines; 2020, 59, 3; 59--69
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the regenerative braking process for the urban traffic conditions
Autorzy:
Kropiwnicki, Jacek
Furmanek, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/132918.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
regenerative braking
real traffic conditions
hybrid vehicles
electric vehicles
energy consumption
route planning
hamowanie odzyskowe
rzeczywiste warunki ruchu
pojazdy hybrydowe
pojazdy elektryczne
zużycie energii
planowanie trasy
Opis:
In a regular drive system, with an internal combustion engine, vehicle braking is connected with the unproductive dissipation of kinetic and potential energy accumulated in the mass of the vehicle into the environment. This energy can constitute up to 70% of the energy used to drive a vehicle under urban conditions. Its recovery and reuse is one of the basic advantages of hybrid and electric vehicles. Modern traffic management systems as well as navigation systems should take into account the possibility of the energy recovery in the process of regenerative braking. For this purpose, a model of a regenerative braking process may be helpful, which on the one hand will enable to provide information on how traffic conditions will affect the amount of energy dissipated (wasted) into the atmosphere, on the other hand will help to optimize the route of vehicles with regenerative braking systems. This work contains an analysis of the process of the regenerative braking for the urban traffic conditions registered in Gdańsk. A model was also presented that allows calculating the amount of energy available from the braking process depending on the proposed variables characterizing the vehicle traffic conditions.
Źródło:
Combustion Engines; 2019, 58, 3; 203-207
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-9 z 9

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