Study on voltage regulation method in the power distribution system

This paper focuses on distribution voltage control when over-voltage or under-voltage occurs in the low-voltage (LV) distribution line. The distribution voltage control is performed by transformer and ac-ac converter. Transformer supports a part of settled voltage and ac-ac converter controls voltage disturbance. Bi-directional ac-ac converter employs digital control using field programmable gate array (FPGA). This method enables simple and fast the distribution voltage control. In this paper, voltage control concept is explained. Scaled-down experimental result is shown, when load condition is changed.

[1]  Hirotaka Koizumi,et al.  D-UPFC as a Voltage Regulator in the Distribution System , 2006 .

[2]  I. Barbi,et al.  New Direct Ac-Ac Converters Using Switching Modules Solving the Commutation Problem , 2006, 2006 IEEE International Symposium on Industrial Electronics.

[3]  J.-H. Kim,et al.  Novel topologies of AC choppers , 1996 .

[4]  K. Kurokawa.  A Conceptual Study on Solar PV Cities for 21st Century , 2006, 2006 IEEE 4th World Conference on Photovoltaic Energy Conference.

[5]  P.N. Enjeti,et al.  Analysis and design of a new voltage sag compensator for critical loads in electrical power distribution systems , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[6]  S.V. Araujo,et al.  Analysis and proposition of a PV module integrated converter with high voltage gain capability in a non-isolated topology , 2007, 2007 7th Internatonal Conference on Power Electronics.

[7]  Seung-Ho Song,et al.  Modeling and analysis of power system operation connected with wind turbine generation system and HVDC in Jeju island using PSCAD/EMTDC , 2007, 2007 7th Internatonal Conference on Power Electronics.