How to improve the design of the electrical system in future wind power plants

HIS paper presents three topics which are important for better performance of future wind farms. The topics are investigated in three coordinated Ph.D. projects ongoing at the Technical University of Denmark (DTU), Aalborg University (AAU) and DONG Energy. The objective of all projects is to improve the understanding of the main electrical components in wind farms, based on available information, measurement data and simulation tools. The aim of these projects is to obtain validated models of wind turbine (WT) generators, WT converters, WT transformers, submarine cables, circuit breakers and wind farm transformers, and to develop a methodology on how to select appropriate equipment for the power system, control system and protection system.

[1]  F. Wittwer,et al.  Medium voltage converter for permanent magnet wind power generators up to 5 MW , 2005, 2005 European Conference on Power Electronics and Applications.

[2]  B. Gustavsen,et al.  Parameter determination for modeling system transients-Part II: Insulated cables , 2005, IEEE Transactions on Power Delivery.

[3]  W. Sweet,et al.  Danish wind turbines take unfortunate turn , 2004, IEEE Spectrum.

[4]  B. Gustavsen,et al.  Wide band modeling of power transformers , 2004, IEEE Transactions on Power Delivery.

[5]  Poul Ejnar Sørensen,et al.  Comparison of Measured Transient Overvoltages in the Collection Grid of Nysted Offshore Wind Farm with EMT Simulations , 2009 .

[6]  J.A. Martinez,et al.  Parameter determination for modeling systems transients-Part V: Surge arresters , 2005, IEEE Transactions on Power Delivery.

[7]  George J. Wakileh.  Power Systems Harmonics: Fundamentals, Analysis and Filter Design , 2001 .

[8]  Neville R. Watson,et al.  Power System Quality Assessment , 2000 .

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

[10]  P ? ? ? ? ? ? ? % ? ? ? ? , 1991 .

[11]  A. Semlyen,et al.  Rational approximation of frequency domain responses by vector fitting , 1999 .

[12]  Lars Liljestrand,et al.  Transients in collection grids of large offshore wind parks , 2008 .

[13]  B.A. Mork,et al.  Parameter determination for modeling system transients-Part III: Transformers , 2005, IEEE Transactions on Power Delivery.

[14]  W. Wiechowski,et al.  Overvoltage Protection of Large Power Transformers—A Real-Life Study Case , 2008, IEEE Transactions on Power Delivery.

[15]  A. Testa,et al.  Time-Varying Harmonics: Part II-Harmonic Summation and Propagation , 2001, IEEE Power Engineering Review.

[16]  Nicola Barberis Negra.  Offshore Wind Power: Grid Connection and Reliability , 2008 .

[17]  B. Gustavsen,et al.  Computer Code for Rational Approximation of Frequency Dependent Admittance Matrices , 2002, IEEE Power Engineering Review.

[18]  Gopal Gajjar,et al.  Development and application of vacuum circuit breaker model in electromagnetic transient simulation , 2006, 2006 IEEE Power India Conference.

[19]  Vladislav Akhmatov,et al.  Excessive Over-Voltage in Long Cables of Large Offshore Windfarms , 2006 .

[20]  Ivàn Arana Aristi.  Modeling of switching transients in Nysted Offshore Wind Farm and its comparison with measurements : -EMT simulations with Power Factory and PSCAD , 2008 .

[21]  Tarik Abdulahovic.  Analysis of High-Frequency Electrical Transients in Offshore Wind Parks , 2011 .

[22]  Kim Høj Jensen,et al.  Modelling and Fault-Ride-Trough Tests of Siemens Wind Power 3.6 MW Variable-Speed Wind Turbines , 2007 .

[23]  P. B. Eriksen,et al.  Selected studies on offshore wind farm cable connections - challenges and experience of the Danish TSO , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[24]  R.W.G. Bucknall,et al.  Theoretical aspects of the harmonic performance of subsea AC transmission systems for offshore power generation schemes , 2006 .

[25]  Poul Ejnar Sørensen,et al.  GPS synchronized high voltage measuring system , 2007 .

[26]  Pietro Varilone,et al.  Discussion of "Time-varying harmonics: Part II-harmonic summation and propagation" , 2003 .

[27]  S.A. Papathanassiou,et al.  Harmonic analysis in a power system with wind generation , 2006, IEEE Transactions on Power Delivery.