Reactive power compensation strategies for wind generation in distribution systems: a power quality approach

This paper studies the impact on the voltage profile of wind energy based generators connected to distribution power systems. Voltage fluctuations arise in distribution levels including noncontrollable primary energy sources because of their corresponding active power injection variations. A number of reactive power strategies have been analysed and compared focusing on the voltage fluctuation minimisation. A distribution network with real wind generation data has been used as a benchmark system to establish the results. Finally, once the reactive power profile is deduced using one of the proposed strategies, a Static Var Compensator is designed in order to show the viability of the adopted reactive power compensation scheme.

[1]  Goran Strbac,et al.  Maximising penetration of wind generation in existing distribution networks , 2002 .

[2]  Enrique Acha,et al.  Power Systems Harmonics , 2001 .

[3]  D. J. Atkinson,et al.  Use of Load Control to Regulate Voltage on Distribution Networks with Embedded Generation , 2002, IEEE Power Engineering Review.

[4]  A. G. Exposito,et al.  Augmented Rectangular Load Flow Model , 2002, IEEE Power Engineering Review.

[5]  B. Fox,et al.  Novel voltage control for embedded generators in rural distribution networks , 2000, PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409).

[6]  Roberto Caldon,et al.  Reactive power control in distribution networks with dispersed generators: a cost based method , 2003 .

[7]  R. Billinton,et al.  Rleliability Benefit Analysis of Adding WTG in a Distribution System , 2001, IEEE Power Engineering Review.

[8]  Nikos D. Hatziargyriou,et al.  The effect of variable-speed wind turbines on the operation of weak distribution networks , 2002 .

[9]  P.P. Barker,et al.  Determining the impact of distributed generation on power systems. I. Radial distribution systems , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).

[10]  Torbjörn Thiringer,et al.  Power Quality Impact of a Sea-Located Hybrid Wind Park , 2001 .

[11]  A. L. Shenkman,et al.  Energy loss computation by using statistical techniques , 1990 .

[12]  Y. Tamura,et al.  A Load Flow Calculation Method for Ill-Conditioned Power Systems , 1981, IEEE Transactions on Power Apparatus and Systems.

[13]  Thomas Ackermann,et al.  Embedded wind generation in weak grids—economic optimisation and power quality simulation , 1999 .

[14]  Enrique Acha,et al.  Power Systems Harmonics: Computer Modelling and Analysis , 2001 .

[15]  J. X. Ostolaza,et al.  Reactive power control of wind farms for voltage control applications , 2004 .