Reduced-capacity smart charger for electric vehicles on single-phase three-wire distribution feeders with reactive power control

In this paper, we propose a new control algorithm to reduce the capacity of a previously proposed smart charger for electric vehicles (EVs) on single-phase three-wire distribution feeders with reactive power control. The basic principle of the proposed control algorithm is discussed in detail. It is shown that controlling the reactive power on the source side reduces the capacity of the previously proposed smart charger. A digital computer simulation is implemented to confirm the validity of the proposed control algorithm using PSIM software. A prototype experimental model is also constructed and tested. Experimental results demonstrate that balanced source currents with a power factor of 0.9, which is acceptable for Japanese home appliances, are obtained on the secondary side of the pole-mounted distribution transformer during both the battery charging and discharging operations in EVs. This reduces the capacity of the smart charger by 32% compared with that of the smart charger with the previously proposed control algorithm.

[1]  Leon M. Tolbert,et al.  Reactive power operation analysis of a single-phase EV/PHEV bidirectional battery charger , 2011, 8th International Conference on Power Electronics - ECCE Asia.

[2]  Leon M. Tolbert,et al.  Examination of a PHEV bidirectional charger system for V2G reactive power compensation , 2010, 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[3]  S.M. Silva,et al.  Performance evaluation of PLL algorithms for single-phase grid-connected systems , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[4]  Toshihiko Tanaka,et al.  Smart Charger for Electric Vehicles With Power-Quality Compensator on Single-Phase Three-Wire Distribution Feeders , 2012, IEEE Transactions on Industry Applications.

[5]  T. Sekiya,et al.  Smart charger for electric vehicles with power quality compensator on single-phase three-wire distribution feeders , 2013, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[6]  S.M. Silva,et al.  PLL structures for utility connected systems , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[7]  P. T. Krein,et al.  Review of benefits and challenges of vehicle-to-grid technology , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[8]  Makoto Saitou,et al.  A Control Method of Single Phase Power Active Filter on d-q Coordinate with Hilbert Transformer , 2002 .

[9]  T. Shimizu,et al.  Generalized theory of instantaneous active and reactive powers in single-phase circuits based on Hilbert transform , 2002, 2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289).

[10]  Alireza Khaligh,et al.  Control and Power Management of a Grid Connected Residential Photovoltaic System with Plug-in Hybrid Electric Vehicle (PHEV) Load , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[11]  J. G. Pinto,et al.  Assessment of a battery charger for Electric Vehicles with reactive power control , 2012, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society.

[12]  Dushan Boroyevich,et al.  Future home uninterruptible renewable energy system with vehicle-to-grid technology , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[13]  Subhashish Bhattacharya,et al.  Multi-function bi-directional battery charger for plug-in hybrid electric vehicle application , 2009, 2009 IEEE Energy Conversion Congress and Exposition.