Design and Implementation of Solar PV-Based Railway Microgrid for Linke Hofmann Busch Coaches

The demand for reliable, sustainable, and environmentally friendly transportation is the need of the hour, and developments are underway for transportation purposes. The use of DG (diesel generator) sets and fuels increases the emission of carbon dioxide and GHG (greenhouse gases) in transportation. Thus, causing pollution and global warming, which could result in drastic climate change, extinction of living species, rising ocean levels, and natural disasters. Non-conventional power sources like solar power, wind energy, and geothermal energy are emerging as complementary power resources in place of conventional sources. This article has proposed a Solar PV and storage-based system for power solutions of LHB (Linke Hofmann Busch, Germany) coaches used in railway transportation. The integration of this solar PV system within a railway microgrid framework enables intelligent energy management, ensuring efficient coordination between renewable generation, energy storage, and coach power demand. The study has shown that the area available atop train coaches is more than sufficient to generate the required power during sunlight hours. The power will be used through hotel load winding in the locomotive using the HOG (Head on Generation) scheme during cloudy weather and nighttime. Rakes can be used as energy generators while standing in the yard and can feed the energy to the grid, helping to save on tariffs. The total calculation was made by observing a standard running route, the number of coaches, and DG set usage. The cost of diesel is 90.70 INR/liter. In the proposed study, there will be an annual saving of 2,57,75,942 INR, corresponding to 2,84,189 liters of diesel per train per year after implementing this arrangement. The establishment cost of this system would be recovered in approximately five months, as calculated. Hence, the system implemented is a better solution for transportation that is reliable, sustainable, and eco-friendly.

LHB Coaches, Railway Micro-Grid, Solar photovoltaic, Transportation

1. International Energy Agency. Report, “Global CO2 emissions from transport by subsector,” https://www.iea.org/data-and-statistics/charts/global-CO2-emissions-from-transport-by-subsector-2000-2030, (2021). [Google Scholar] [Crossref]

2. Doulgeris, S., et al. "Evaluation of energy consumption and electric range of battery electric busses for application to public transportation." Transportation Engineering 15 : 100223 (2024). [Google Scholar] [Crossref]

3. Hao D, Zhang T, Guo L, Feng Y, Zhang Z, Yuan Y. A High‐Efficiency, Portable Solar Energy‐Harvesting System Based on a Foldable‐Wings Mechanism for Self‐Powered Applications in Railways. Energy Technology. (4) :2000794 (2021). [Google Scholar] [Crossref]

4. Cabrane, Zineb, and Soo Hyoung Lee. "Control and management of railway system connected to microgrid stations." IEEE Access 10 (2022): 40445-40455. [Google Scholar] [Crossref]

5. Jafari Kaleybar, Hamed, et al. "Smart AC-DC Coupled Hybrid Railway Microgrids Integrated with Renewable Energy Sources: Current and Next Generation Architectures." Energies 17.5 (2024): 1179. [Google Scholar] [Crossref]

6. Dhaked DK, Gopal Y, Birla D. Battery charging optimization of solar energy-based telecom sites in India. Engineering, Technology & Applied Science Research ;9(6):5041-6. (2019). [Google Scholar] [Crossref]

7. Dhaked DK, Gopal Y, Birla D. Battery charging optimization of solar energy based telecom sites in India. Engineering, Technology & Applied Science Research.;9(6):5041-6, (2019). [Google Scholar] [Crossref]

8. Di Pasquale, Antonio, et al. "Optimal Sizing of a Wayside PV System for DC Rail Transit Systems: The Case Study of the 3 kV Cagliari-Oristano Traction System." 2024 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC). IEEE, (2024). [Google Scholar] [Crossref]

9. Indian. Railways, “INDIAN RAILWAYS Lifeline to the Nation, “Indian Railways. [Online]. Available: https://indianrailways.gov.in/railwayboard/view_section.jsp?lang=0&id=0,1,304,366,552,694, (2021). [Google Scholar] [Crossref]

10. Akhtar I, Kirmani S, Hasan S. Advanced control approach for solar assisted electric vehicle drive. Materials Today: Proceedings. 1;46:10806-10, (2021). [Google Scholar] [Crossref]

11. Iskandar, Handoko Rusiana, et al. "The Green Campus Building's Rooftop Photovoltaic System Design Project." Infotekmesin 15.1: 24-32, (2024). [Google Scholar] [Crossref]

12. Indian solar resources map, “Global Solar Atlas,” Ministry of New and Renewable Energy. [Online]. Available: https://globalsolaratlas.info/download/india, 13 Oct (2019). [Google Scholar] [Crossref]

13. Elkasrawy, Mohamed A., et al. "Harnessing Solar Energy for Charity: Implementation and Monitoring of a 5 kWp Photovoltaic System." 2024 25th International Middle East Power System Conference (MEPCON). IEEE, (2024). [Google Scholar] [Crossref]

14. Indian Railways, “INDIAN RAILWAYS Lifeline to the Nation,” INDIAN RAILWAYS, 03 July 2019. [Online]. Available: https://indianrailways.gov.in/railwayboard/view_section.jsp?lang=0&id=0,1. [Accessed 23 Oct 2022]. [Google Scholar] [Crossref]

15. Sipra, Abdullah Tariq, et al. "Design and assessment of energy management strategy on rail coaches using solar PV and battery storage to reduce diesel fuel consumption." Energy 288: 129718, (2024). [Google Scholar] [Crossref]

16. Hao D, Zhang T, Guo L, Feng Y, Zhang Z, Yuan Y. A High‐Efficiency, Portable Solar Energy‐Harvesting System Based on a Foldable‐Wings Mechanism for Self‐Powered Applications in Railways. Energy Technology. (4):2000794, (2021). [Google Scholar] [Crossref]

17. Darvishpour, Yasaman, et al. "Integration of Rooftop Solar PV on Trains: Comparative Analysis of MPPT Methods for Auxiliary Power Supply of Locomotives in Milan." Electronics 13.17: 3537, (2024). [Google Scholar] [Crossref]

18. Hao D, Zhang T, Guo L, Feng Y, Zhang Z, Yuan Y. A High‐Efficiency, Portable Solar Energy‐Harvesting System Based on a Foldable‐Wings Mechanism for Self‐Powered Applications in Railways. Energy Technology. (4):2000794, (2022). [Google Scholar] [Crossref]

19. Anh, An Thi Hoai Thu, and Tran Hung Cuong. "A Solution for Energy-Efficient Operation of Urban Electric Trains: Integrating Rooftop PV with the Active Rectifier in the Traction Substation." Engineering, Technology & Applied Science Research : 13890-13896, (2024). [Google Scholar] [Crossref]

20. Dunlap, Richard A. Transportation Technologies for a Sustainable Future: Renewable energy options [Google Scholar] [Crossref]

21. for road, rail, marine and air transportation. IOP Publishing, (2023). [Google Scholar] [Crossref]

22. Bagal, Dilip Kumar, et al. "Scope of Using Photovoltaic Cell to Power Electrical Units of Air-Conditioned Linke Hofmann Busch (LHB) Coaches Used in Indian Railways." Advances in Air Conditioning and Refrigeration: Select Proceedings of RAAR 2019. Springer Singapore,( 2021). [Google Scholar] [Crossref]

23. Smartkeeda, “smartkeeda,” [Online]. Available: https://www.smartkeeda.com/Myfiles/images/1(8).png, 10 Sep 2021. [Google Scholar] [Crossref]

24. Dhaked DK, Birla D. Microgrid designing for electrical two-wheeler charging station supported by solar PV and fuel cell. Indian Journal of Science and Technology.14(30):2517-25, (2021). [Google Scholar] [Crossref]

25. Dhaked DK, Birla D. Modeling and control of a solar-thermal dish-stirling coupled PMDC generator and battery based DC microgrid in the framework of the ENERGY NEXUS. Energy Nexus. 16;5:100048, (2022). [Google Scholar] [Crossref]

26. Fakiola, Christina. Radiative transfer in dust shells around red giant stars. MS thesis. ETH Zurich, 2023. [Google Scholar] [Crossref]

27. Abreu, Edgar Francisco Mendes. Direct Normal Irradiance and circumsolar radiation: modelling, measurement and impact on Concentrating Solar Power. Diss. Universidade de Evora (Portugal), (2023). [Google Scholar] [Crossref]

28. Driesse, Anton, Marios Theristis, and Joshua S. Stein. Global horizontal spectral irradiance and module spectral response measurements: an open dataset for PV research. No. SAND-2023-02045. Sandia National Lab.(SNL-CA), Livermore, CA (United States); Sandia National Lab.(SNL-NM), Albuquerque, NM (United States), (2023). [Google Scholar] [Crossref]

29. Xue, Yanqun, and Sanekazu Igari. "Reference solar spectra and their generation models." Journal of Science and Technology in Lighting 46: 6-18, (2023). [Google Scholar] [Crossref]

30. Govt. Of India, “Sunshine and daylight hours in New Delhi, India,” Sunshine and daylight hours in New Delhi, India . [Online]. Available: https://www.new-delhi.climatemps.com/sunlight.php, (2022). [Google Scholar] [Crossref]

31. N. Valev, “GlobalPetrolPrices.com,” GlobalPetrolPrices. [Online]. Available: https://www.globalpetrolprices.com/USA/diesel_prices/, (2022). [Google Scholar] [Crossref]

32. L. Solar, “Loom Solar,” Shark Bi-Facial Solar Panel 440-530 Watt. 144 Cells, 9 Bus-Bar. [Online]. Available: https://www.loomsolar.com/products/shark-bifacial-front-back-power-generation-solar-panel (2022). [Google Scholar] [Crossref]

33. Sharma, Sanjeev, et al. "A comprehensive review of Indian railway freight business: Strategies for regaining the lost ground and future prospects." Case Studies on Transport Policy: 101195, (2024). [Google Scholar] [Crossref]

34. Ecoscore, “Ecoscore,” [Online]. Available: https://ecoscore.be/en/info/ecoscore/CO2, (2022). [Google Scholar] [Crossref]

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