1Scotland WWF. The Role of Electric Vehicles in Scotland' sLow Carbon Future [ R ]. Scotland : WWF Scotland,2010.
2The Alpiq Group. Electric Vehicle Market Pen- etration inSwitzerland by 2020 [ R ]. Switzer- land: The Alpiq Group,2010.
3Helena Spongenberg. EU States Plug in to E- lectric Cars [ EB/OL ]. http ://euobserver. corn /882/26594. [2010 - 10 - 10].
4IET Transport Desk. UK Grid Capaci- ty' Sufficient' forElectrie Vehicles [ R ] . Eng- land: The Institution of Engineeringand Tech- nology, 1 May 2009.
5The Research on Power Supply Mode for Pure Electric Vehicle [ A ] Proceedings of 2010 The 3rd International Conference on Pow- er Electronics and Intelligent Transportation System( Volume 2) [ C ] ,2010.
6SCOTLAND W W F. The Role of Electric Vehicles in Scot- land's Low Carbon Future [ R ]. Scotland: WWF Scotland, 2010.
7The Alpiq Garoup. Electric Vehicle Market Pen-etration in Switzerland by 2020 [ R ]. Switzer-land : The Alpiq Group, 2020.
8LU Yan-xia, JIANG Jiu-chun. Harmonic study of electric vehicle chargers [ C ]// Proceedings of the Eighth Interna- tional Conference on Electrical Machines and systems. [ S. L. ]: ICEMS,2005:2404-2407.