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Journal articles on the topic 'Power Trains'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 January 2023

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1

Milivoj Mandić, Ivo Uglešić, and Viktor Milardić. "ELECTRIC RAILWAY POWER CONSUMPTION." Journal of Energy - Energija 58, no. 4 (September 16, 2022): 384–407. http://dx.doi.org/10.37798/2009584306.

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The electric railways is a specific consumer of the electric power system. For the purpose of using electric energy rationally and making adequate savings, efforts are made to optimize electric energy consumption of electric trains and other electric railway facilities. The work shows the train movement simulation algorithm which serves to determine primarily the mechanical and then also the electric power required for traction. The sections of the electrified tracks are supplied from the electric traction substation (TS) and, for the requirements of the electric traction calculation, an elect

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2

Agunov, Alexander, Valeriy Varentsov, and Denis Sokolov. "The specificities of power loss calculation in electric traction network with allowance for movement of power consuming devices." Proceedings of Petersburg Transport University, no. 4 (March 20, 2019): 491–97. http://dx.doi.org/10.20295/1815-588x-2018-4-491-497.

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Summary Objective: To study the speciﬁcities of average currents and power loss calculation in electric traction networks in conditions of constantly changing load. Methods: Probabilistic methods of calculation were applied. Results: Occurrence probability of a certain number of trains in an inter-substation zone was calculated on the basis of train schedule analysis. Calculations of currents and power loss in different elements of a traction energy system with a ﬁxed number of trains in an inter-substation zone were given. It was found that the obtained values of currents and power loss corre

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3

Salgado, David R., and J. M. Del Castillo. "Selection and Design of Planetary Gear Trains Based on Power Flow Maps." Journal of Mechanical Design 127, no. 1 (January 1, 2005): 120–34. http://dx.doi.org/10.1115/1.1828458.

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It is shown that for any planetary gear train (PGT) it is possible to find the relationship existing between the transmission ratio of the train and the power transmitted through each gear pair (gearing power). Specifically, for trains of five and six members, this functional dependence generates a family of curves parameterized by the transmission ratio. A plot of this family of curves is called a power flow map. It allows one to identify those trains that have a potentially high efficiency. In particular, it identifies the transmissions which present power recirculation, a condition that is

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Alnuman, Hammad, Daniel Gladwin, and Martin Foster. "Electrical Modelling of a DC Railway System with Multiple Trains." Energies 11, no. 11 (November 19, 2018): 3211. http://dx.doi.org/10.3390/en11113211.

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Electrical modelling of rail tracks with multiple running trains is complex due to the difficulties in solving the power flow. The train positions, speed and acceleration are constantly varying resulting in a nonlinear system. In this work, a method is proposed for modelling DC electric railways to support power flow analysis of a simulated metro train service. The method exploits the MathWorks simulation tool Simscape, using it to model the mechanical and electrical characteristics of the rail track system. The model can be simulated to provide voltages at any position in the track and additi

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Wang, Jibao, and Hailin Jiang. "Location-Based LTE-M Uplink Power Control and Radio Resource Scheduling." Sensors 22, no. 4 (February 14, 2022): 1474. http://dx.doi.org/10.3390/s22041474.

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Long-Term Evolution for Metro (LTE-M) is adopted as the data communication system in urban rail transit to exchange bio-direction train-wayside information. Reliable data communication is essential in LTE-M systems for ensuring trains’ operation safety and efficiency. However, the inter-cell inference problem exists in LTE results in throughput reduction, especially when trains are in the edge area of adjacent cells, and has negative effects on train operation. The uplink power control and radio resource scheduling scheme is studied in LTE-M system which differentiates from public cellular net

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Seferi, Yljon, Steven M. Blair, Christian Mester, and Brian G. Stewart. "Power Quality Measurement and Active Harmonic Power in 25 kV 50 Hz AC Railway Systems." Energies 13, no. 21 (October 30, 2020): 5698. http://dx.doi.org/10.3390/en13215698.

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Railway electrical networks rated at 25 kV 50 Hz are characterised by significant levels of voltage and current harmonics. These frequency components are also time varying in nature due to the movement of trains and changing operational modes. Processing techniques used to evaluate harmonic results, although standardised, are not explicitly designed for railway applications, and the smoothing effect that the standard aggregation algorithms have on the measured results is significant. This paper analyses the application accuracy of standardised power quality (PQ) measurement algorithms, when us

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Hyman, Mario, and Mohd Hasan Ali. "A Novel Model for Wind Turbines on Trains." Energies 15, no. 20 (October 15, 2022): 7629. http://dx.doi.org/10.3390/en15207629.

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Wind turbines that are consistently exposed to the air displaced by moving trains have a high potential for energy generation. Researchers have developed mathematical models to simulate wind energy generation from turbines on moving trains but there are significant gaps in the developed model theory. Most models do not consider the negative effects that additional aerodynamic drag, increased weight, and modified dimensions can have on the train’s operation. To overcome the drawbacks of existing models, this work proposes a novel approach of modeling the wind turbines on trains by considering w

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8

Gu, Qing, Tao Tang, Fang Cao, Hamid Reza Karimi, and Yongduan Song. "Peak Power Demand and Energy Consumption Reduction Strategies for Trains under Moving Block Signalling System." Mathematical Problems in Engineering 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/940936.

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In the moving block signalling (MBS) system where the tracking target point of the following train is moving forward with its leading train, overload of the substations occurs when a dense queue of trains starts (or restarts) in very close distance interval. This is the peak power demand problem. Several methods have been attempted in the literature to deal with this problem through changing train’s operation strategies. However, most existing approaches reduce the service quality. In this paper, two novel approaches—“Service Headway Braking” (SHB) and “Extending Stopping Distance Interval” (E

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9

Hsieh, Long Chang, and Tzu Hsia Chen. "On the Kinematics and Statics of Planetary Simple Gear Reducers." Advanced Materials Research 591-593 (November 2012): 2165–68. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.2165.

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The power system equipped in machinery contains power source (motor or engine) and gear reducer to get large output torque. The rotation speed of motor is made higher and higher to attach high power with the same volume. Hence, the reduction ratio of gear reducer is required to be higher and higher. Planetary gear trains can be used as the gear reducers with high reduction ratio. However, the planetary gear train with high reduction ratio is compound gear system. This paper proposes planetary simple gear reducers with high reduction ratio. According to train value equation, the kinematic desig

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10

Cantone, L. "Simulation of freight trains with up to three traction units in radio communication." IOP Conference Series: Materials Science and Engineering 1214, no. 1 (January 1, 2022): 012039. http://dx.doi.org/10.1088/1757-899x/1214/1/012039.

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Abstract Paper reports the main results of a systematic study on longitudinal train dynamics (LTD) of long freight trains, equipped with radio communication. The simulation results have been used to prepare an experimental test campaign to test the Distributed Power System (DPS) technology. The simulations refer to up/down and level track and they compare the LTD of trains with and without DPS, for different train operations and radio link conditions. The DPS technology is proved (by simulations and test) to be a very effective way to increase the efficiency of future freight trains.

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11

Mizsey, Peter, and Esmond Newson. "Comparison of different vehicle power trains." Journal of Power Sources 102, no. 1-2 (December 2001): 205–9. http://dx.doi.org/10.1016/s0378-7753(01)00802-3.

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12

Haslinger, Josef, Günter Offner, Martin Sopouch, and Bianka Zinkiewicz. "Modal Analysis of Vehicle Power Trains." PAMM 15, no. 1 (October 2015): 53–54. http://dx.doi.org/10.1002/pamm.201510017.

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13

Hsieh, Long Chang, Hsin Sheng Lee, and Teu Hsia Chen. "An Algorithm for the Kinematic Design of Gear Transmissions with High Reduction Ratio." Materials Science Forum 505-507 (January 2006): 1003–8. http://dx.doi.org/10.4028/www.scientific.net/msf.505-507.1003.

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Planetary gear trains can be used as the transmission systems with high reduction ratio for power machinery. The purpose of this paper is to propose an algorithm for the kinematic design of planetary gear trains with high reduction ratio. Based on the concept of train value equation, we propose a new representation to present the kinematic relationship of the members of the train loop. According to this representation graph, we propose an efficient algorithm for the kinematic design of planetary gear trains with high reduction ratio. Three design examples are designed to illustrate the design

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14

Hatori, Kenji, Shota Saito, Nils Soltau, and Eugen Stumpf. "Green SiC Trains." Electric and Hybrid Rail Technology 2021, no. 1 (July 2021): 60–61. http://dx.doi.org/10.12968/s2754-7760(23)70018-2.

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15

Dick, C. Tyler, Ivan Atanassov, F. Bradford Kippen, and Darkhan Mussanov. "Relative train length and the infrastructure required to mitigate delays from operating combinations of normal and over-length freight trains on single-track railway lines in North America." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 233, no. 7 (November 19, 2018): 731–42. http://dx.doi.org/10.1177/0954409718809204.

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Distributed power locomotives have facilitated longer heavy-haul freight trains that improve the efficiency of railway operations. In North America, where the majority of mainlines are single track, the potential operational and economic advantages of long trains are limited by the inadequate length of many existing passing sidings (passing loops). To alleviate the challenge of operating trains that exceed the length of passing sidings, railways preserve the mainline capacity by extending passing sidings. However, industry practitioners rarely optimize the extent of infrastructure investment f

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16

YAN, LI-XIN, JIAN-FEI HUA, YING-CHAO DU, YUAN-FANG HUANG, YAN YOU, DAN WANG, WEN-HUI HUANG та CHUAN-XIANG TANG. "UV pulse trains by α-BBO crystal stacking for the production of THz-rap-rate electron bunches". Journal of Plasma Physics 78, № 4 (30 березня 2012): 429–31. http://dx.doi.org/10.1017/s0022377812000281.

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AbstractUltrashort electron bunch trains can be used for plasma wake field acceleration (PWFA) to overcome the limit of transformer ratio of a single electron bunch, or high-power terahertz (Thz) radiation production by various radiation mechanisms. Basic facility for high-power THz radiation development based on ultrashort electron beam has been set up at accelerator lab of TUB. Using birefringent crystal serials, ultraviolet (UV) pulse shaping for photocathode radio frequency gun to produce THz-repetition-rate pulse train was realized. Driven by such pulses, ultrashort electron bunch train w

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17

Rao, Yu, Xiaoyun Feng, Qingyuan Wang, Pengfei Sun, Zhuang Xiao, and Honghui Chen. "Energy‐efficient control of a train considering multi‐trains power flow." IET Intelligent Transport Systems 16, no. 3 (December 2021): 380–93. http://dx.doi.org/10.1049/itr2.12149.

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18

Yoon, Hyuk-Jin, Su-Hwan Yun, Dae-Hyun Kim, Jae Hee Kim, Bong-Kwan Cho, Gi-Gun Lee, Soon-Eung Park, and Young-Chul Kim. "Effect of High-Speed Train-Induced Wind on Trackside UAV Thrust Near Railway Bridge." Applied Sciences 10, no. 10 (May 18, 2020): 3495. http://dx.doi.org/10.3390/app10103495.

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Imaging devices attached to unmanned aerial vehicles (UAVs) are used for crack measurements of railway bridges constructed for high-speed trains. This research aims to investigate track-side wind induced by high-speed trains and its effect on UAV thrust near the railway bridge. Furthermore, the characteristics of train-induced wind in three axial directions along a track, wind velocity, and the effect of train-induced wind on the UAV thrust were analyzed. This was achieved by installing 3-axis ultrasonic anemometers and a UAV thrust measurement system on top of a PSC box girder bridge. The cha

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19

Gao, Guoqiang, Tingting Zhang, Wenfu Wei, Yi Hu, Guangning Wu, and Ning Zhou. "A pantograph arcing model for electrified railways with different speeds." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 6 (December 20, 2017): 1731–40. http://dx.doi.org/10.1177/0954409717747754.

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Pantograph arcing is an unavoidable phenomenon in electrified railways, which not only causes damage to the carbon strip and the catenary contact line but also results in voltage surge and electromagnetic interference. In recent years, there are more cases of pantograph arcing due to the increase in speed of trains. Therefore, it is essential to understand the basic electrical characteristics of pantograph arcing at different running speeds of trains. In this work, a pantograph arcing model was proposed, which considers the effects of the speed of a train on the arc-dissipated power. An overal

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20

Sotnikov, Evgeniy A., and Pavel S. Kholodnyak. "Changes in the carriage and traffic capacity along highly busy routes in case of traffic scheduling for permanently linked multiple trains." Vestnik of the Railway Research Institute 78, no. 5 (December 23, 2019): 259–65. http://dx.doi.org/10.21780/2223-9731-2019-78-5-265.

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The increase in transportation volume through the railroad network requires novel less capital-intensive methods for increasing the carriage capacity with respect to the busy routes that operate at traffic capacity levels of 0.8 and higher. One proposed method is the traffic scheduling of permanently linked multiple trains. Because the existing lines were constructed without considering the usage of permanently linked multiple trains, special preparation of various sections, especially for enhancing the electric power supply system, as well as additional development of stations are required. C

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21

Vuolle, Paul. "Quality Power Control." Electric and Hybrid Rail Technology 2022, no. 1 (March 2022): 42–43. http://dx.doi.org/10.12968/s2754-7760(23)70040-6.

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22

Hsieh, Long Chang, and Hsiu Chen Tang. "The Kinematic Design of 2K-2H Planetary Gear Reducers with High Reduction Ratio." Applied Mechanics and Materials 319 (May 2013): 610–15. http://dx.doi.org/10.4028/www.scientific.net/amm.319.610.

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The power system equipped in machinery contains power source (motor or engine) and gear reducer to get large output torque. The rotation speed of motor is made higher and higher to obtain high power with the same volume. Hence, the reduction ratio of gear reducer is required to be higher and higher. Planetary gear trains can be used as the gear reducers with high reduction ratio. However, the planetary gear train with high reduction ratio is compound gear system. The purpose of this paper is to propose 2K-2H type planetary gear reducers with high reduction ratio. Based on the concept of train

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23

Zuyev, S. M., R. A. Maleyev, YU M. Shmatkov, P. S. Shirokov, and D. R. Yakhutl'. "Study of the combined drive of the road train." Izvestia MGTU MAMI 1, no. 2 (2021): 26–35. http://dx.doi.org/10.31992/2074-0530-2021-48-2-26-35.

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This article describes purpose, areas of application and main parameters of heavy road trains for the transportation of special and general cargo. Heavy-duty road trains with drive wheels of trailed links are considered. The advantages of using heavy-duty road trains in comparison with single trucks are shown. Additional energy sources for a standard engine (diesel or gas turbine engine for driving a three-phase generator), designed to overcome steep ascents and difficult road sections, are considered. The analysis of the turn of the road train is carried out. The advantages of ring and parall

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24

Schmidt, L. C., and J. Cagan. "Optimal Configuration Design: An Integrated Approach Using Grammars." Journal of Mechanical Design 120, no. 1 (March 1, 1998): 2–9. http://dx.doi.org/10.1115/1.2826672.

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A computational approach to design that integrates conceptual design, configuration design, and component selection tasks overcomes some of the barriers to successful design automation. FFREADA is an implementation of a general design generation and optimization algorithm featuring hierarchical ordering of grammar-based design generation processes at different levels of abstraction. FFREADA is used to generate near-optimal hand-held drill power trains in a space exceeding 200 million designs that are not limited to any particular functional architecture or component configuration. Drill power

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25

Höhlein, Bernd, Peter Biedermann, Thomas Grube, and Reinhard Menzer. "Fuel cell power trains for road traffic." Journal of Power Sources 84, no. 2 (December 1999): 203–13. http://dx.doi.org/10.1016/s0378-7753(99)00318-3.

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26

Guzzella, L., A. Amstutz, and F. Grob. "Optimal Operation Strategies for Hybrid Power-Trains." IFAC Proceedings Volumes 31, no. 1 (February 1998): 93–98. http://dx.doi.org/10.1016/s1474-6670(17)42183-5.

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27

Hrovat, D., and W. E. Tobler. "Bond graph modeling of automotive power trains." Journal of the Franklin Institute 328, no. 5-6 (January 1991): 623–62. http://dx.doi.org/10.1016/0016-0032(91)90046-6.

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Hrovat, D., and W. F. Powers. "Computer control systems for automotive power trains." IEEE Control Systems Magazine 8, no. 4 (August 1988): 3–10. http://dx.doi.org/10.1109/37.7724.

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29

Corbo, P., F. E. Corcione, F. Migliardini, and O. Veneri. "Energy management in fuel cell power trains." Energy Conversion and Management 47, no. 18-19 (November 2006): 3255–71. http://dx.doi.org/10.1016/j.enconman.2006.02.025.

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30

Sidorova, Elena Anatolyevna, and Svetlana Olegovna Podgornaya. "Determination of basic specific train tractive resistance at analysis of power consumption of electric locomotives." Transport of the Urals, no. 1 (2020): 80–84. http://dx.doi.org/10.20291/1815-9400-2020-1-80-84.

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The paper presents recommendations on determination of basic specific train tractive resistance at analysis of power consumption on traction of trains that plays an important role in the increase of accuracy of standardization and prediction of power consumption with the consideration for assumptions that significantly simplify the necessary calculations.

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Fufacheva, M. V. "The laws of distribution of some parameters when organizing the movement of trains." Herald of the Ural State University of Railway Transport, no. 3 (2021): 27–39. http://dx.doi.org/10.20291/2079-0392-2021-3-27-39.

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The article discusses the key factors for the organization of train traffic. The analysis of statistical parameters of the intervals of departure of freight trains from railway stations and the length of the freight train flow is carried out. Based on these train schedules, graphical dependences of the intervals of departure of trains from separate points on the volume of train traffic and the distribution of train lengths in even and odd directions are constructed. Polynomial dependencies with coefficients of variation are derived. The curve of the second-order Erlang distribution function fo

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Zhao, Ning, and Qing Jian Jia. "The Efficiency Analysis and Optimization of Gear Trains." Advanced Materials Research 156-157 (October 2010): 1000–1005. http://dx.doi.org/10.4028/www.scientific.net/amr.156-157.1000.

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A kinematic analysis is apply to gear trains of the main reducer of helicopter , and established the mathematical model of the system structure and layout of the gear trains use the graph theory representation to caculate the mechanical efficiency of it base on the kinematics, moment balance theory, power conservation principle and so on. The paper also introduced the constrained optimization function to carried on the gear train to increase the efficiency of the gear trains and improve the layout of the system structure, which to provide the basis of system structural analysis and design of t

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Popov, A. F., and M. Fratu. "Calculation algorithm and method for optimizing electricity consumption for the railway traction system." IOP Conference Series: Materials Science and Engineering 1242, no. 1 (April 1, 2022): 012030. http://dx.doi.org/10.1088/1757-899x/1242/1/012030.

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Abstract This article presents a calculation algorithm for establishing the electricity demand consumed by the railway electric traction system on a railway section, as well as methods for lowering power consumption and cost. In order to conceive the calculation algorithm, the following variables are taken into account: the number of trains in circulation on the section, the slope of the section, the train speed and the speed restrictions. For factors that substantially increase electricity consumption, but can be controlled, optimal values are computed using specific equations in the MATLAB p

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34

Arcidiacono, Gabriele, Rossella Berni, Luciano Cantone, Nedka D. Nikiforova, and Pierpaolo Placidoli. "Fast Method to Evaluate Payload Effect on In-Train Forces of Freight Trains." Open Transportation Journal 12, no. 1 (February 28, 2018): 77–87. http://dx.doi.org/10.2174/1874447801812010077.

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Introduction:This paper introduces a fast method to evaluate the effect of payload distribution on in-train forces.Methods:The method is based on Strong Orthogonal Arrays (SOA) and the excellent space-filling properties of Latin Hypercube Design (LHD): SOA-based-LHD is proved to be very efficient in spanning the range of in-train forces for different types of trains (also considering distributed power/braking) and trains operations.Results:The distribution of the percentage of braked mass is used to consider the effect of payload distribution on in-train forces. Because of its computational ef

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Karlina, A. I., A. R. Akhmetshin, K. V. Suslov, V. A. Olentsevich, A. V. Sivtsov, and Yu I. Karlina. "Justification of measures aimed at increasing the capacity of a section of a railway line, taking into account its required electrical capacities." Journal of Physics: Conference Series 2176, no. 1 (June 1, 2022): 012041. http://dx.doi.org/10.1088/1742-6596/2176/1/012041.

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Abstract The annual increase in cargo turnover to the Far Eastern seaports contributes to the optimization of the railway infrastructure in order to increase the level of throughput and processing capacity of the Baikal-Amur Mainline and Trans-Siberian Railway facilities. JSC Russian Railways pays special attention to these issues. Organization and promotion of car traffic through the formation of freight trains using the connection technology, “virtual coupling”, heavy and dual trains that move on an ongoing basis is one of the innovative methods for increasing the carrying capacity for highl

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Bur’yanovaty, Arkady, and Valery Varentsov. "Using of probabilistic methods for current loads estimation in traction circuit components." Bulletin of scientific research results, no. 1 (December 20, 2016): 30–36. http://dx.doi.org/10.20295/2223-9987-2016-1-30-36.

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Objective: To develop the method of calculating the electrical loads on the traction circuit components, by using data of train traffic schedule, considering the train weight differences and real-life modes of its traction under the variety of track profile, speed limitations and other parameters of traction and external electric power supply systems. Methods: To determine the mean values and dispersion of current for power supply line of traction circuit, based on the experimental runs and data from movement parameters recorders of locomotives, by type and weight of trains, the methods of pro

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Lemieux, Patrick, Roderick Guthrie, and Mihaiela Isac. "Optimizing Soft Magnetic Composites for Power Frequency Applications and Power-Trains." JOM 64, no. 3 (March 2012): 374–87. http://dx.doi.org/10.1007/s11837-012-0262-z.

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Lee, Samuel C. K., Cara N. Becker, and Stuart A. Binder-Macleod. "Catchlike-inducing train activation of human muscle during isotonic contractions: burst modulation." Journal of Applied Physiology 87, no. 5 (November 1, 1999): 1758–67. http://dx.doi.org/10.1152/jappl.1999.87.5.1758.

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Stimulation trains that exploit the catchlike property [catchlike-inducing trains (CITs)] produce greater forces and rates of rise of force than do constant-frequency trains (CFTs) during isometric contractions and isovelocity movements. This study examined the effect of CITs during isotonic contractions in healthy subjects. Knee extension was electrically elicited against a load of 10% of maximum voluntary isometric contraction. The stimulation intensity was set to produce 20% of maximum voluntary isometric contraction. The muscle was tested before and after fatigue with a 6-pulse CFT and 6-p

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Bushuev, Sergey. "Ways to Rise Carrying Capacity of Railway Sections." Transport automation research 8, no. 4 (December 12, 2022): 343–53. http://dx.doi.org/10.20295/2412-9186-2022-8-04-343-353.

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The article considers three courses of carrying (traffic) capacity rise: the increase of train length and traffic speed and the decrease of the interval between trains. Reached indicators in these courses and potential in their growth are defined on statistical data basis. The dependence of carrying (traffic) capacity of railway section from being researched parameters is established. The way of group auto-guidance of trains as the development of being applied technology of virtual replacer is proposed. The possibilities and conditions of the reduction of interval between trains, depending on

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Krasyuk, Aleksander, and Ivan Lugin. "KEEPEING OF MICROCLIMATE PARAMETERS AT TERMINAL STATION OF SUBWAY LINE." Interexpo GEO-Siberia 2, no. 4 (2019): 122–30. http://dx.doi.org/10.33764/2618-981x-2019-2-4-122-130.

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In the work results of field studies of speed of air flows initiated by piston effect of trains on terminal station Ploshad Garina-Mikhaylovskogo of Novosibirsk Subway are represented. Actual volumes of cold outside air inflowing into the station and dependences of air flow speeds on movement speed of trains are determined. It is shown when temperature of outside air is below than -10 °, warm air curtains in operation do not provide heating up inflowing into the station cold air to standard temperature. Results of calculating experiments at math model of air distribution are represented, calcu

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Wang, Lei, Bo Ai, Yong Niu, Xia Chen, and Pan Hui. "Energy-Efficient Power Control of Train–Ground mmWave Communication for High-Speed Trains." IEEE Transactions on Vehicular Technology 68, no. 8 (August 2019): 7704–14. http://dx.doi.org/10.1109/tvt.2019.2923066.

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Koyama, Shinsuke. "On the Spike Train Variability Characterized by Variance-to-Mean Power Relationship." Neural Computation 27, no. 7 (July 2015): 1530–48. http://dx.doi.org/10.1162/neco_a_00748.

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We propose a statistical method for modeling the non-Poisson variability of spike trains observed in a wide range of brain regions. Central to our approach is the assumption that the variance and the mean of interspike intervals are related by a power function characterized by two parameters: the scale factor and exponent. It is shown that this single assumption allows the variability of spike trains to have an arbitrary scale and various dependencies on the firing rate in the spike count statistics, as well as in the interval statistics, depending on the two parameters of the power function.

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Alcaraz Calderón, Agustín Moisés, Oscar Alfredo Jaramillo Salgado, Nicolas Velazquez Limón, Miguel Robles Perez, Jorge Ovidio Aguilar Aguilar, Maria Ortencia González Díaz, and Abigail González Díaz. "Optimisation of an Integrated System: Combined Heat and Power Plant with CO2 Capture and Solar Thermal Energy." Processes 11, no. 1 (January 4, 2023): 155. http://dx.doi.org/10.3390/pr11010155.

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This paper aims to evaluate different design configurations of a combined heat and power (CHP) plant with post-combustion CO2 capture. Three cases are involved in this study: case 1 consists of three trains and each train has a configuration of one gas turbine with a heat recovery steam generator (HRSG); case 2 consists of three trains and one steam turbine; and case 3 consists of only two trains. The third case presented the highest CHP efficiency of 72.86% with 511.8 MW net power generation. After selecting the optimum configuration, a parabolic-trough collector (PTC) was incorporated to gen

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Liu, Geng, Shan Chang, Li Yan Wu, and Ying Sheng Li. "Analysis System of Marine Planetary Gear Trains." Applied Mechanics and Materials 86 (August 2011): 55–58. http://dx.doi.org/10.4028/www.scientific.net/amm.86.55.

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Planetary gear train (PGT) with herringbone gears is one of typical transmission styles used in marine power transmission. How to effectively design a PGT with lighter structures and lower vibration and noise is a fatal task for heavily loaded marine gearing. An analysis system which was developed in the past decades is introduced in this paper to simulate the performance of planetary herringbone gear trains. The effects of main crucial parameters on the static and dynamic characteristics of planetary herringbone gear trains are studied by using the analysis system. The results are discussed a

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Jin, Bo, Xiaoyun Feng, Qingyuan Wang, Pengfei Sun, and Qian Fang. "Train Scheduling Method to Reduce Substation Energy Consumption and Peak Power of Metro Transit Systems." Transportation Research Record: Journal of the Transportation Research Board 2675, no. 4 (January 5, 2021): 201–12. http://dx.doi.org/10.1177/0361198120974677.

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The rapid development of metro transit systems brings very significant energy consumption, and the high service frequency of metro trains increases the peak power requirement, which affects the operation of systems. Train scheduling optimization is an effective method to reduce energy consumption and substation peak power by adjusting timetable parameters. This paper proposes a train timetable optimization model to coordinate the operation of trains. The overlap time between accelerating and braking phases is maximized to improve the utilization of regenerative braking energy (RBE). Meanwhile,

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CHUDAKOV, Alexander I., Valery O. IVASHCHENKO, Alexey P. ZELENCHENKO, and Nikolay V. LYSOV. "Optimization of control systems for suburban trains." Proceedings of Petersburg Transport University 2021, no. 4 (December 2021): 499–506. http://dx.doi.org/10.20295/1815-588x-2021-4-499-506.

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Objective: The use of pulse conversion of electricity on direct-current traction rolling stock is discussed. Methods: A variant of the system for regulating the operating modes of traction motors of suburban electric trains using a pulse converter based on insulated gate bipolar transistors is described. (IGBT). Results: The proposed impulse control system is presented as a possible option for the modernization of the applied control systems, which makes it possible to improve the traction and energy indicators of suburban electric trains. The advantages of pulse converters based on IGBTs are

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Pshikhopov, Viacheslav, Mikhail Medvedev, and Anatoly Gaiduk. "Control Method for Vehicles on Base of Natural Energy Recovery." Applied Mechanics and Materials 670-671 (October 2014): 1330–36. http://dx.doi.org/10.4028/www.scientific.net/amm.670-671.1330.

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This paper is devoted to vehicle movement control method based on the natural energy recovery [1] and position-path control approach [2,3,4]. This method ensures the fullest use of kinematic energy of the controlled vehicle. Method is applied for path profile with variable height. Vehicle velocity is changed to minimize kinematic energy losses. The time of the path passage is accounted in the designed method. In this report typical profiles of the controlled vehicle are considered. In general case the vehicle velocity program is developed on base of solutions for typical profiles. The vehicle

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Lobyntsev, V. V., S. S. Polev, and K. G. Mogilevsky. "Study of Performance of RZhFA‑6500 Smoothing Reactors." World of Transport and Transportation 18, no. 4 (January 5, 2021): 72–83. http://dx.doi.org/10.30932/1992-3252-2020-18-72-83.

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DC traction power supply systems have become widespread in several countries. Electricity consumption by traction power supply systems has pronounced seasonal and daily peaks. The peak nature of consumption leads to additional heating of live parts since time constants of transient thermal and electrophysical processes differ by several orders of magnitude, therefore, reducing ohmic resistance of electrical equipment, other things being equal, is an extremely important task.Within the framework of solving the problem of increasing energy efficiency of equipment of DC traction substations, smoo

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Istomin, Stanislav, and Aleksandr Shtraukhman. "Simulation model of the heating and air conditioning system of dc electric trains." E3S Web of Conferences 135 (2019): 02018. http://dx.doi.org/10.1051/e3sconf/201913502018.

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Most of the territory of the Russian Federation is located in the zone of long-term exposure to negative ambient temperatures. In this regard, in the suburban traffic on the railways of the Russian Federation, a significant proportion of the electric power falls on the operation of heating and air conditioning systems. Nowadays, Russia and the world are developing energy-saving methods and tools to reduce the energy consumption of auxiliary needs of electric trains. In this paper, the method of constructing simulation models in the MATLAB Simulink software was used to build an energy-saving he

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Ponorac, Luka, Aleksandar Grkić, and Slavko Muždeka. "HYBRID POWER TRAINS FOR HIGH-SPEED TRACKED VEHICLES." Mobility and Vehicle Mechanics 47, no. 3 (September 29, 2021): 35–48. http://dx.doi.org/10.24874/mvm.2021.47.03.04.

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