Application of Regenerative Braking with Optimized Speed Profiles for Sustainable Train Operation
This paper presents a method for synergizing the energy-saving strategies of integrated coasting and regenerative braking in urban rail transit operations. Coasting saves energy by maintaining motion with propulsion disabled, but it induces longer travel time. Regenerative braking captures and reuse...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Advanced Transportation |
| Online Access: | http://dx.doi.org/10.1155/2021/8555372 |
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| author | Leon Allen Steven Chien |
| author_facet | Leon Allen Steven Chien |
| author_sort | Leon Allen |
| collection | DOAJ |
| description | This paper presents a method for synergizing the energy-saving strategies of integrated coasting and regenerative braking in urban rail transit operations. Coasting saves energy by maintaining motion with propulsion disabled, but it induces longer travel time. Regenerative braking captures and reuses the braking energy of the train and could shorten travel time but reduces the time available for coasting, indicating a tradeoff between the two strategies. A simulation model was developed based on fundamental kinematic equations for assessing sustainable train operation with Wayside Energy-Saving Systems (WESSs). The objective of this study is to optimize speed profiles that minimize energy consumption, considering the train schedule and specifications, track alignment, speed limit, and the WESS parameters such as storage limit and energy losses in the transmission lines. The decision variables are the acceleration at each time step of the respective motion regimes. Since the study optimization problem is combinatorial, a Genetic Algorithm was developed to search for the solution. A case study was conducted which examined various scenarios with and without WESS on a segment of an urban rail transit line to test the applicability of the proposed model and to provide a platform for the application of ideas developed in this study. It was determined that synergizing the energy-saving strategies of coasting and regenerative braking yielded the greatest efficiency of the scenarios examined. |
| format | Article |
| id | doaj-art-876e8ad5fc7e47108bad7687f04bc0fd |
| institution | Kabale University |
| issn | 0197-6729 2042-3195 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Advanced Transportation |
| spelling | doaj-art-876e8ad5fc7e47108bad7687f04bc0fd2025-08-20T03:38:01ZengWileyJournal of Advanced Transportation0197-67292042-31952021-01-01202110.1155/2021/85553728555372Application of Regenerative Braking with Optimized Speed Profiles for Sustainable Train OperationLeon Allen0Steven Chien1Department of Civil and Environmental Engineering, New Jersey Institute of Technology, NJ 07102, Newark, USADepartment of Civil and Environmental Engineering, New Jersey Institute of Technology, NJ 07102, Newark, USAThis paper presents a method for synergizing the energy-saving strategies of integrated coasting and regenerative braking in urban rail transit operations. Coasting saves energy by maintaining motion with propulsion disabled, but it induces longer travel time. Regenerative braking captures and reuses the braking energy of the train and could shorten travel time but reduces the time available for coasting, indicating a tradeoff between the two strategies. A simulation model was developed based on fundamental kinematic equations for assessing sustainable train operation with Wayside Energy-Saving Systems (WESSs). The objective of this study is to optimize speed profiles that minimize energy consumption, considering the train schedule and specifications, track alignment, speed limit, and the WESS parameters such as storage limit and energy losses in the transmission lines. The decision variables are the acceleration at each time step of the respective motion regimes. Since the study optimization problem is combinatorial, a Genetic Algorithm was developed to search for the solution. A case study was conducted which examined various scenarios with and without WESS on a segment of an urban rail transit line to test the applicability of the proposed model and to provide a platform for the application of ideas developed in this study. It was determined that synergizing the energy-saving strategies of coasting and regenerative braking yielded the greatest efficiency of the scenarios examined.http://dx.doi.org/10.1155/2021/8555372 |
| spellingShingle | Leon Allen Steven Chien Application of Regenerative Braking with Optimized Speed Profiles for Sustainable Train Operation Journal of Advanced Transportation |
| title | Application of Regenerative Braking with Optimized Speed Profiles for Sustainable Train Operation |
| title_full | Application of Regenerative Braking with Optimized Speed Profiles for Sustainable Train Operation |
| title_fullStr | Application of Regenerative Braking with Optimized Speed Profiles for Sustainable Train Operation |
| title_full_unstemmed | Application of Regenerative Braking with Optimized Speed Profiles for Sustainable Train Operation |
| title_short | Application of Regenerative Braking with Optimized Speed Profiles for Sustainable Train Operation |
| title_sort | application of regenerative braking with optimized speed profiles for sustainable train operation |
| url | http://dx.doi.org/10.1155/2021/8555372 |
| work_keys_str_mv | AT leonallen applicationofregenerativebrakingwithoptimizedspeedprofilesforsustainabletrainoperation AT stevenchien applicationofregenerativebrakingwithoptimizedspeedprofilesforsustainabletrainoperation |