Journal of System Simulation ›› 2020, Vol. 32 ›› Issue (8): 1606-1616.doi: 10.16182/j.issn1004731x.joss.20-0117

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Dynamic Equivalent Modeling and Simulation of Wind Farm Based on ASW-FCM Algorithm

Li Mudan1,2, Wang Yinsong2   

  1. 1. Science & Technology College, North China Electric Power University, Baoding 071000, China;
    2. College of Control and Computer Engineering, North China Electric Power University, Baoding 071000, China
  • Received:2020-03-10 Revised:2020-05-09 Online:2020-08-18 Published:2020-08-13

Abstract: A new dynamic equivalent modeling method is proposed for the wind farm of directly-driven wind turbine with permanent magnet synchronous generator (D-PMSG). The wake effect and wind direction change between multiple wind turbines are considered to calculate the effective input wind speed, the effective wind speed, rotor speed, pitch angle and output power are selected as the multi-group indicators after analyzing the wind turbine operating characteristics. Considering the differences and relevance of the operating conditions between the turbines, an adaptive sample weighting fuzzy C-means clustering algorithm (ASW-FCM) is designed to optimally cluster the wind farm. The clustered wind turbine group equivalent model is established based on the principle that the output characteristics before and after the equivalence are equal. A wind farm system is selected as the example of modeling and simulation to verify the rationality and accuracy of the equivalent modeling method.

Key words: D-PMSG, wind farm, sample weighting, clustered grouping, equivalent modeling

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