PV plants for voltage regulation in distribution networks

This paper deals with the development of a centralized nonlinear auto-adaptive controller able to optimize the network voltage profile by managing the reactive power supplied by PV inverters. The control design is based on a realtime optimization procedure involving the sensitivity theory in conjunction with the Lyapunov function and produces the control laws that must be sent to local controllers of PV-inverters. The derived controller is implemented and tested on a MV distribution network.

[1]  Michael Chertkov,et al.  Local Control of Reactive Power by Distributed Photovoltaic Generators , 2010, 2010 First IEEE International Conference on Smart Grid Communications.

[2]  F. Torelli,et al.  Can PV plants provide a reactive power ancillary service? A treat offered by an on-line controller , 2011 .

[3]  Martin Braun,et al.  Optimal Reactive Power Supply in Distribution Networks - Technological and Economic Assessment for PV-Systems , 2009 .

[4]  B. Stott,et al.  Review of load-flow calculation methods , 1974 .

[5]  A. Gross,et al.  Impacts of large scale photovoltaic systems on the low voltage network , 1997 .

[6]  M. Braun,et al.  REACTIVE POWER SUPPLIED BY PV INVERTERS - COST-BENEFIT-ANALYSIS , 2007 .

[7]  J. A. Pecas Lopes,et al.  Coordinated voltage support in distribution networks with distributed generation and microgrids , 2009 .

[8]  Chul-Hwan Kim,et al.  Optimal coordinated voltage control in distribution system , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[9]  Tomonobu Senjyu,et al.  Optimal voltage control in distribution systems using PV generators , 2011 .

[10]  G. Carpinelli,et al.  Centralized control of dispersed generators providing ancillary services in distribution networks , 2009, 2009 44th International Universities Power Engineering Conference (UPEC).

[11]  R. Procopio,et al.  An integrated active and reactive power control scheme for grid-connected photovoltaic production systems , 2008, 2008 IEEE Power Electronics Specialists Conference.

[12]  Michael Chertkov,et al.  Options for Control of Reactive Power by Distributed Photovoltaic Generators , 2010, Proceedings of the IEEE.

[13]  F. Jurado,et al.  Impact comparison of PV system integration into rural and urban feeders , 2008 .