Congestion-induced wind curtailment: Sensitivity analysis and case studies

During the past decade, there has been tremendous development in wind energy all over the world. However, due to the power system operational constraints, reliability requirement as well as other technical limitations (e.g. wind prediction errors), significant portions of the wind generation resources (WGR) are curtailed in real-time operations. Among various power system operating constraints, transmission congestion plays a significant role. In this paper, we analyze the problem of the wind curtailment due to transmission congestion. Furthermore, we propose a sensitivity index to assess the impact of transmission line limit on wind generation curtailment. An analytical expression of the sensitivity index is derived based on the network theory of power system. The modified IEEE RTS-24 Bus system is used to verify the proposed theory.

[1]  Xu Cheng,et al.  PTDF-based power system equivalents , 2005, IEEE Transactions on Power Systems.

[2]  Paul M. Anderson,et al.  Analysis of faulted power systems , 1973 .

[3]  Mohammad Shahidehpour,et al.  The IEEE Reliability Test System-1996. A report prepared by the Reliability Test System Task Force of the Application of Probability Methods Subcommittee , 1999 .

[4]  D.M. Divan,et al.  A distributed static series compensator system for realizing active power flow control on existing power lines , 2004, IEEE PES Power Systems Conference and Exposition, 2004..

[5]  Deepak Divan,et al.  A Distributed Static Series Compensator System for Realizing Active Power Flow Control on Existing Power Lines , 2007 .

[6]  Ramteen Sioshansi,et al.  Market protocols in ERCOT and their effect on wind generation , 2010 .

[7]  G. Edwards.  Texas , 1958, "These United States".

[8]  F. Galiana,et al.  Power systems restructuring : engineering and economics , 1998 .

[9]  M.D. Ilic,et al.  Application of Support Vector Machine Classification to Enhanced Protection Relay Logic in Electric Power Grids , 2007, 2007 Large Engineering Systems Conference on Power Engineering.

[10]  Pravin Varaiya,et al.  Smart Operation of Smart Grid: Risk-Limiting Dispatch , 2011, Proceedings of the IEEE.

[11]  Stephen Rose.  The Cost of Curtailing Wind Turbines for Frequency Regulation and Ramp-Rate Limitation , 2010 .

[12]  David Maggio,et al.  Outstanding questions around increasing variable generation penetration in the ERCOT system , 2010, IEEE PES General Meeting.