A novel DC microgrid based on photovoltaic and traction power supply system

In order to recycle the braking energy in traction system, provide convenience for the electric vehicle (EV) battery charging system, and take advantage of solar power generation, a new DC microgrid system is proposed. Photovoltaic and EV battery charging and discharging system are connected to the traction system via DC bus to form a ring DC microgrid. The maximum power point tracking control is adopted for solar power generation. In the conditions of metro locomotive starting, running, and regenerative braking, the traction voltage of novel system is more stable. The simulation results indicate that the system is effective.

[1]  G. A. Putrus,et al.  Impact of electric vehicles on power distribution networks , 2009, 2009 IEEE Vehicle Power and Propulsion Conference.

[2]  B. Lasseter,et al.  Microgrids [distributed power generation] , 2001, 2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194).

[3]  Dushan Boroyevich,et al.  Future electronic power distribution systems a contemplative view , 2010, 2010 12th International Conference on Optimization of Electrical and Electronic Equipment.

[4]  M. Steiner,et al.  Energy storage on board of DC fed railway vehicles PESC 2004 conference in Aachen, Germany , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[5]  Bill Rose,et al.  Microgrids , 2018, Smart Grids.

[6]  Luo Hua-wei.  A Survey on Distributed Generation and Its Networking Technology , 2008 .

[7]  Hong Bowen.  Energy penetration of large-scale distributed photovoltaic sources integrated into smart distribution network , 2012 .

[8]  Ren Kun,et al.  Equivalent Along-Wind Direction Static Wind Load of Transmission Tower for 1 000 kV Double Circuit Transmission Lines on Same Tower , 2009 .

[9]  C. Marnay,et al.  Shape of the microgrid , 2000, 2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194).

[10]  Xie Da.  Research on Co-Developmental Trend of Distributed Generation and Smart Grid , 2010 .

[11]  Gan De-qiang.  Computing the Maximum Penetration Level of Multiple Distributed Generators in Distribution Network Taking into Account Voltage Regulation Constraints , 2006 .

[12]  Wu,et al.  Analysis of DC Grid Prospects in China , 2012 .

[13]  Kevin P. Schneider,et al.  Impacts Assessment of Plug-in Hybrid Vehicles on Electric Utilities and Regional US Power Grids: Part 1: Technical Analysis , 2007 .

[14]  Li Sheng,et al.  Power System Large Scale Blackout Emergency Evaluation Index System and Its Application , 2008 .

[15]  J. Driesen,et al.  The Impact of Charging Plug-In Hybrid Electric Vehicles on a Residential Distribution Grid , 2010, IEEE Transactions on Power Systems.

[16]  Lu Zongxiang,et al.  Overview on Microgrid Research , 2007 .

[17]  Mao Mei-qin.  Key Technologies for Microgrids Being Researched , 2009 .

[18]  Zhou Chengke,et al.  Environmental Benefits Analysis of Distributed Generation , 2008 .