Quantitative analysis of regenerative energy in electric rail traction systems

Saleh, Mahmoud; Dutta, Oindrilla; Esa, Yusef; Mohamed, Azah

doi:10.1109/ias.2017.8101774

Cited by 24 publications

(23 citation statements)

References 12 publications

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“…Secara lengkap penjelasan variable dan nilai yang dipakai dapat dilihat pada Tabel 1. Nilai variabel pemodelan merujuk pada (M. Saleh, 2017) yang berarti pula kebutuhan gaya traksi akan semakin besar.…”

Section: Pengolahan Dataunclassified

Pemanfaatan Baterai untuk Mengurangi Beban Puncak dan Meningkatkan Penyerapan Energi Regenerative Braking pada Kereta Api

Maghfiroh

2020

JPTD

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Semakin meningkatnya kebutuhan transportasi dan meningkatnya pemanasan global akibat polusi, maka sistem transportasi massal merupakan alternative utama. Kereta api merupakan salah satu moda transportasi yang paling effisien dari segi energi dibandingkan moda transportasi lain. Kereta api listrik merupakan kereta yang ramah lingkuangan. Akan tetapi, kereta ini memerlukan energi listrik yang besar. Salah satu cara untuk mengurangi konsumsi energi kereta listrik adalah dengan regenerative braking. Listrik hasil regenerative braking kurang dapat termanfaatkan dan kebanyakan dibuang di brake resistor. Energy Storage System (ESS) dapat dipakai untuk menyimpan energi hasil regenerative braking. ESS dapat diletakkan disamping lintas (track-side) maupun pada sarana kereta api (on-board). ESS on-board (ESS-OB) memiliki efisiensi dan manajemen energi yang lebih mudah. Baterai dipilih menjadi ESS-OB karena marupakan salah satu jenis ESS yang lebih unggul dibanding tipe lain yaitu flywheel dan super-capacitor. Pengujian simulasi dilakukan dengan memodelkan substasiun, kereta api, ESS-OB, dan brake resistor. Pada pengujian kereta berjalan diantara dua substasiun dan berhenti di tiga stasiun kereta api. Hasil pengujian menunjukkan bahwa penambahan baterai sebagai ESS-OB di kereta mampu menyerap energi hasil regenerative braking dengan baik dan mampu mengurangi beban puncak hingga 2,11 %. Penghematan energi akan lebih banyak jika diterapkan pada beberapa unit kereta dan frekuensi perjalanan yang lebih tinggi. Penambahan baterai ini juga meningkatkan massa kereta hingga 0,07%.

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Section: Pengolahan Dataunclassified

Pemanfaatan Baterai untuk Mengurangi Beban Puncak dan Meningkatkan Penyerapan Energi Regenerative Braking pada Kereta Api

Maghfiroh

2020

JPTD

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“…Simulation-based on specific models and comparison with the real measurements are useful tools in the precise quantification of the regenerative energy and the optimal design of an ESS and/or a reversible substation. [85,89].…”

Section: Wayside Storage Systemsmentioning

confidence: 99%

A Review of the Energy Efficiency Improvement in DC Railway Systems

Popescu

Bitoleanu

2019

Energies

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This study is focused on the topical issue of increasing the energy efficiency in DC railway systems, in the context of global concerns for reducing the CO2 emissions by minimizing the energy consumption and energy loss. The main achievements in this complex issue are synthesized and discussed in a comprehensive review, emphasizing the implementation and application of the existing solutions on concrete case studies. Thus, all specific subtopics related to the energy efficiency are covered, starting with power quality conditioning and continuing with the recovery of braking energy, of which a large part is lost in the classic DC-traction substations. The solutions of onboard and wayside storage systems for the braking energy are discussed and compared, and practical examples are given. Then, the achievements in transforming the existing DC-traction substations in reversible substations with capabilities of power quality improvement are systematically reviewed by illustrating the main results of recent research on this topic. They include the equipment available on the market and solutions validated through implementations on experimental models. Through the results of this extensive review, useful reference and support are provided for the research and development focused on energy efficient traction systems.

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“…Combining with Equations (1), (19), (20) and (22), when the length of the power supply section is less than the safe running distance of the train, the total energy consumption in (t i,k , t i+1,k ) is…”

Section: Model With Shorter Supply Intervalsmentioning

confidence: 99%

“…The downward train y j (18033) is towed by the SS 4B DC locomotive. According to the collected data, ∆t 1 = t i+1,k − τ j,k+1 = 77 s, ∆t 2 = t i,k+1 − t i+1,k = 306 s, and ∆t 3 = τ j,k − t i,k+1 = 509 s; combining Equations (20) and (21), P i,k , P i+1,k , and P i,k are obtained.…”

Section: Energy Analysis Of a Single Power Supply Intervalmentioning

confidence: 99%

“…Although this model is only an application of the single-vehicle model, it only theoretically considers the recovery of regenerative braking energy and does not combine the actual electrical parameters and grid factors to influence the regenerative braking energy recovery. To date, many researchers have studied the electrical parameters affecting the regenerative braking energy [19][20][21][22]; using the results of this paper and combining the conclusions of these documents, more accurate energy consumption calculations can be performed.…”

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confidence: 99%

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Establishment and Analysis of Energy Consumption Model of Heavy-Haul Train on Large Long Slope

et al. 2018

Energies

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AC heavy-haul trains produce a huge amount of regenerative braking energy when they run on long downhill sections. If this energy can be used by uphill trains in the same power supply section, a reduction in coal transportation cost and an improvement in power quality would result. To accurately predict the energy consumption and regenerative braking energy of heavy-haul trains on large long slopes, a single-particle model of train dynamics was used. According to the theory of railway longitudinal section simplification, the energy consumption and the regenerative braking energy model of a single train based on the train attributes, line conditions, and running speed was established. The model was applied and verified on the Shenshuo Railway. The results indicate that the percentage error of the proposed model is generally less than 10%. The model is a convenient and simple research alternative, with strong engineering feasibility. Based on this foundation, a model of train energy consumption was established under different interval lengths by considering the situation of regenerative braking energy in the multi-train operation mode. The model provides a theoretical foundation for future train diagram layout work with the goal of reducing the total train energy consumption.

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Quantitative analysis of regenerative energy in electric rail traction systems

Cited by 24 publications

References 12 publications

Pemanfaatan Baterai untuk Mengurangi Beban Puncak dan Meningkatkan Penyerapan Energi Regenerative Braking pada Kereta Api

Pemanfaatan Baterai untuk Mengurangi Beban Puncak dan Meningkatkan Penyerapan Energi Regenerative Braking pada Kereta Api

A Review of the Energy Efficiency Improvement in DC Railway Systems

Establishment and Analysis of Energy Consumption Model of Heavy-Haul Train on Large Long Slope

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