Research on Wind Farms Aggregation Method for Electromagnetic Simulation Based on FDNE

In this work, a wind farm aggregation method for electromagnetic simulation model based on FDNE is proposed. Identical subsystems terminated with a same node operating in parallel can be aggregated with the same constraints. WTGs connected to the same feeder within a wind farm can be aggregated as one equivalent subsystem. And the wind farm aggregated model includes several aggregated subsystems based on the grouping criterion. And each aggregated subsystem model constitutes an aggregated WTG with a current amplifier to generate the same amount of real power, an equivalent impedance of collector system, and a FDNE component to adjust the aggregated model frequency characteristics. Wind farms based on DFIG and PMSG are used to validate the effectiveness of the proposed aggregation method. The simulation comparison results indicate that the proposed method can guarantee the consistencies of the power flow and transient responses during faults with high accuracy. And the computation time is shortened by 87% in the dome cases.

[1]  M. Aoki.  Control of large-scale dynamic systems by aggregation , 1968 .

[2]  E. Muljadi,et al.  Equivalencing the collector system of a large wind power plant , 2006, 2006 IEEE Power Engineering Society General Meeting.

[3]  Mohamed A. El-Sharkawi,et al.  Dynamic Equivalent Model of Wind Power Plant Using an Aggregation Technique , 2015, IEEE Transactions on Energy Conversion.

[4]  欧州風力エネルギー協会,et al.  "Powering Europe", wind energy and the electricity grid , 2012 .

[5]  P. Ledesma,et al.  Doubly fed induction generator model for transient stability analysis , 2005, IEEE Transactions on Energy Conversion.

[6]  Bikash C. Pal,et al.  Model Order Reduction of Wind Farms: Linear Approach , 2019, IEEE Transactions on Sustainable Energy.

[7]  Thomas Ackermann,et al.  Wind Power in Power Systems , 2005 .

[8]  N. Hosseinzadeh,et al.  Dynamic DFIG wind farm model with an aggregation technique , 2010, International Conference on Electrical & Computer Engineering (ICECE 2010).

[9]  Richard Gagnon,et al.  Validation of Single- and Multiple-Machine Equivalents for Modeling Wind Power Plants , 2011, IEEE Transactions on Energy Conversion.

[10]  Siegfried Heier,et al.  Grid Integration of Wind Energy Conversion Systems , 1998 .

[11]  E. Muljadi,et al.  Method of equivalencing for a large wind power plant with multiple turbine representation , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[12]  Ying Hua Han,et al.  Grid Integration of Wind Energy Conversion Systems , 2000 .

[13]  Xiaoming Zha,et al.  Aggregating wind farm with DFIG in power system online analysis , 2009, 2009 IEEE 6th International Power Electronics and Motion Control Conference.

[14]  Mehdi Allagui,et al.  An aggregate model of PMSG-based, grid connected wind farm: Investigation of LVRT capabilities , 2015, IREC2015 The Sixth International Renewable Energy Congress.