A new approach for fast reliability evaluation of composite power system considering wind farm

Due to fluctuation and randomness of wind speed, reliability of power system will be affected severely with increasing wind energy injected into power grid. In order to evaluate reliability of composite power system with wind farms, this paper proposes a new approach based on non-sequential Monte Carlo simulation (MCS) and the cross-entropy (CE), the basic idea is to find an optimal distortion for probabilistic parameters of components using the CE concepts. A fault set based on linked list is utilized to enhance the retrieval speed as well. As a result, the computational efforts of the CE can be greatly reduced while retaining many of its main advantages. Comparisons with CE, and non-sequential MCS are carried out using the modifications of IEEE-RTS-79 (Reliability Test System) that include wind farm. The results demonstrate that the improved CE (ICE) method is of relatively high efficiency for reliability evaluation of composite power system with wind farms.

[1]  A. M. Leite da Silva,et al.  A conditional probability approach to the calculation of frequency and duration indices in composite reliability evaluation , 1993 .

[2]  C. Singh,et al.  A practical approach for integrated power system vulnerability analysis with protection failures , 2004, IEEE Transactions on Power Systems.

[3]  Armando M. Leite da Silva,et al.  Composite Systems Reliability Evaluation Based on Monte Carlo Simulation and Cross-Entropy Methods , 2013, IEEE Transactions on Power Systems.

[4]  Zhaohong Bie,et al.  Studies on models and algorithms of the power system probabilistic production simulation integrated with wind farm , 2009, 2009 IEEE Power & Energy Society General Meeting.

[5]  A.M.L. da Silva,et al.  Generating Capacity Reliability Evaluation Based on Monte Carlo Simulation and Cross-Entropy Methods , 2010, IEEE Transactions on Power Systems.

[6]  Vladimiro Miranda,et al.  Simplified Cross-Entropy Based Approach for Generating Capacity Reliability Assessment , 2013, IEEE Transactions on Power Systems.

[7]  Tapan Kumar Saha,et al.  Reliability evaluation of wind farms considering generation and transmission systems , 2014, 2014 IEEE PES General Meeting | Conference & Exposition.

[8]  Tai Neng-ling.  NEW SHORT-TERM LOAD FORECASTING PRINCIPLE WITH THE WAVELET TRANSFORM FUZZY NEURAL NETWORK FOR THE POWER SYSTEMS , 2004 .

[9]  Roy Billinton,et al.  A Comparison Between Two Fundamentally Different Approaches to Composite System Reliability Evaluation , 1985, IEEE Transactions on Power Apparatus and Systems.

[10]  N. J. Balu,et al.  Composite generation/transmission reliability evaluation , 1992, Proc. IEEE.