A new calculation method of short-circuit currents contributed by doubly-fed wind turbines cluster

A new calculation method of short-circuit currents (SCCs) with doubly fed induction generators (DFIGs) is proposed in this paper, aiming to cope with the calculation difficulty caused by DFIGs and complex cluster topology. Firstly, the paper analyzes the fault characteristic of DFIG with crowbar protection and simplifies the calculation process. Secondly, the equivalent impedance model of DFIG cluster under different connection types is introduced and the new SCC calculation method is given. At last, the accuracy of the method is verified with PSCAD/EMTDC and the comparison with the national standard calculation method is analyzed. The results are of positive significance for the electric safety design of the doubly-fed wind turbines cluster.

[1]  Tang Yi A Practical Method to Calculate Short-Circuit Current in Power System Connected With Doubly Fed Induction Generators , 2013 .

[2]  Peter Nagy,et al.  Control of wind power , 2013, 2013 International Conference on Renewable Energy Research and Applications (ICRERA).

[3]  Xiaofu Xiong,et al.  Short-circuit current of doubly fed induction generator under partial and asymmetrical voltage drop , 2016 .

[4]  C Wessels,et al.  Fault Ride-Through of a DFIG Wind Turbine Using a Dynamic Voltage Restorer During Symmetrical and Asymmetrical Grid Faults , 2011, IEEE Transactions on Power Electronics.

[5]  A. P. Grilo,et al.  A study on the rotor side control of DFIG-based wind turbine during voltage sags without crowbar system , 2012, 2012 International Conference on Renewable Energy Research and Applications (ICRERA).

[6]  L. Nezli,et al.  Modeling and Control of a Wind Power Conversion System Based on the Double-Fed Asynchronous Generator , 2012 .

[7]  Asad Ashfaq Modeling of Wind Energy Conversion System using PSCAD/EMTDC , 2017 .

[8]  Francesco Sulla,et al.  Symmetrical and unsymmetrical short-circuit current of squirrel-cage and doubly-fed induction genera , 2011 .

[9]  Constantinos Sourkounis,et al.  Transient behaviour and active damping of vibrations in DFIG-based wind turbines during grid disturbances , 2015, 2015 International Conference on Renewable Energy Research and Applications (ICRERA).

[10]  Kenneth E. Okedu,et al.  Hybrid Control Strategy for Variable Speed Wind Turbine Power Converters , 2013, Enhanced Power Grid Stability Using Doubly-Fed Induction Generators.

[11]  Antonio T. Alexandridis,et al.  Rotor-side PI controller design of DFIG wind turbines based on direct power flow modeling , 2013, 2013 International Conference on Renewable Energy Research and Applications (ICRERA).

[12]  Zhang Xi,et al.  Dynamic equivalent model of doubly fed wind farm during electromagnetic transient process , 2017 .

[13]  E. Muljadi,et al.  Short-circuit modeling of a wind power plant , 2011, 2011 IEEE Power and Energy Society General Meeting.

[14]  Dimitrios G. Giaourakis,et al.  Dynamic Behaviour of a Wind Energy Conversion System including Doubly-Fed Induction Generator in Fault Conditions , 2012 .

[15]  Mohammad Hasanuzzaman Shawon,et al.  An Integrated Topology of Hybrid Marine Farm & Wind Farm , 2013 .

[16]  E. Rosolowski,et al.  Analysis of short circuit faults in a system fed by wind turbine , 2012, 2012 International Conference on Renewable Energy Research and Applications (ICRERA).

[17]  Kenneth E. Okedu Stability Enhancement of DFIG-Based Variable Speed Wind Turbine With a Crowbar by FACTS Device as Per Grid Requirement , 2012 .