A static analysis method to determine the availability of kinetic energy from wind turbines

This paper introduces definitions and an analysis method for estimating how much kinetic energy can be made available for inertial response from a wind turbine over a year, and how much energy capture must be sacrificed to do so. The analysis is based on the static characteristics of wind turbines, Weibull distributions of wind speed, and standard definitions of turbulence intensity. A control scheme is presented that extracts an appropriate amount of kinetic energy based on operating point. The tradeoff of wholesale energy revenue for potential kinetic energy revenue is explored. The break-even point is compared with marginal prices for kinetic energy obtained in the literature, and found to be favourable for one example of a full-converter interface wind turbine having a wide speed range.

[1]  E. Vittal,et al.  Wind Penetration Limited by Thermal Constraints and Frequency Stability , 2007, 2007 39th North American Power Symposium.

[2]  N. Jenkins,et al.  Comparison of the response of doubly fed and fixed-speed induction generator wind turbines to changes in network frequency , 2004, IEEE Transactions on Energy Conversion.

[3]  R. Watson,et al.  Frequency Response Capability of Full Converter Wind Turbine Generators in Comparison to Conventional Generation , 2008, IEEE Transactions on Power Systems.

[4]  H. Banakar,et al.  Kinetic Energy of Wind-Turbine Generators for System Frequency Support , 2009, IEEE Transactions on Power Systems.

[5]  M. O'Malley,et al.  Frequency control in competitive electricity market dispatch , 2005, IEEE Transactions on Power Systems.

[6]  G. C. Tarnowski,et al.  Study of variable speed wind turbines capability for frequency response , 2009 .

[7]  Ervin Bossanyi,et al.  Wind Energy Handbook , 2001 .

[8]  Thomas Ackermann,et al.  International comparison of requirements for connection of wind turbines to power systems , 2005 .

[9]  A. Mullane,et al.  Frequency control and wind turbine technologies , 2005, IEEE Transactions on Power Systems.

[10]  T. Thiringer,et al.  Temporary Primary Frequency Control Support by Variable Speed Wind Turbines— Potential and Applications , 2008, IEEE Transactions on Power Systems.

[11]  Eduard Muljadi,et al.  Pitch-controlled variable-speed wind turbine generation , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[12]  J. G. Slootweg,et al.  Representing wind turbine electrical generating systems in fundamental frequency simulations , 2003 .

[13]  J.A. Ferreira,et al.  Wind turbines emulating inertia and supporting primary frequency control , 2006, IEEE Transactions on Power Systems.