Energy savings in urban mass transit systems: A probabilistic approach for sizing electric energy storage devices

Author(s):  
G. Clemente ◽  
M. Fantauzzi ◽  
D. Lauria
1978 ◽  
Vol 3 (4) ◽  
pp. 331-345 ◽  
Author(s):  
W. Fischer ◽  
H.B. Gels ◽  
F. Gross ◽  
K. Liemert ◽  
F.J. Rohr

Author(s):  
Seung Uk Son ◽  
Changwan Kang ◽  
Yoon-Joo Ko ◽  
Sang Moon Lee ◽  
Hae Jin Kim ◽  
...  

Conjugated microporous polymers (CMPs) have significant potential as electrode materials for electric energy storage devices, due to their high surface areas, conjugation features, and chemical stability. However, the low conductivity...


Author(s):  
Kirill Lvovich Levin ◽  
Rojerio V. Jelamo ◽  
Nikolay S. Pshchelko ◽  
Samuil D. Khanin

Graphenes in the form of flexible thin films treated with different types of plasma were investigated by Mott-Schottky analysis. The possibility of variation of electrical conductivity in graphene prepared by plasma treatment was shown. Obtained materials are promising for electric energy storage devices.


Author(s):  
A. P. Buinosov ◽  
◽  
M. G. Durandin ◽  
O. I. Tutynin ◽  
◽  
...  

A solution to the problem of increasing the efficiency of traction electric drive systems, taking into account the steady increase in electricity prices, is proposed by using storage devices. Promising types of energy storage devices are considered. A comparative analysis of the main types of batteries and supercapacitors is carried out. The description, types, and main technical characteristics of batteries and supercapacitor energy storage devices are given. The choice of the best energy storage device is justified. The technical characteristics of specific models of supercapacitors are compared and the required number of individual storage devices of different models is calculated in accordance with the supply voltage of the engine and the energy consumed by them in the acceleration mode. The supercapacitor model for forming a storage battery was selected according to the following optimality criteria: minimum mass, minimum price, and minimum number of individual capacitors.


Author(s):  
Alasdair C. Renfrew ◽  
Martyn Chymera ◽  
Mike Barnes

Reducing energy consumption in electrified transit systems is becoming increasingly important as energy prices rise and environmental concerns become more prominent. In electrified transit systems, significant savings can be accomplished by utilizing braking energy. Energy from regenerative braking can be used to power vehicles via the traction supply system, or stored on board vehicles using energy storage devices. The effectiveness and energy savings of regenerative braking or on board energy storage is dependent on the nature of the system, particularly the vehicle drive cycles and service frequency. The paper describes an analysis methodology developed to consider energy flows in an electrified transit system, hence enabling the potential benefits of regenerative braking and energy storage devices to be assessed.


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