A novel protection method for a wind farm collector line based on FCM clustering analysis

Abstract To solve the problem of incorrect collector line protection in large-scale wind farms, we propose a protection method based on fuzzy c-means (FCM) clustering analysis. The intrinsic relationship between the fault current and the voltage sag of a doubly-fed induction generator (DFIG) was analysed under fault conditions. According to the component characteristics contained in the DFIG fault current, the DC, AC power frequency, and rotation frequency under different operation conditions were extracted to form the historical data sample set. The historical feature samples were divided into either the non-fault or fault category by the FCM algorithm in the multi-dimensional fault space, thereby obtaining the clustering centres. The distance similarity criterion was used to determine the attributes of the real-time feature sample to evaluate its protection. A centralized large-scale wind farm model was established in DIgSILENT to simulate various fault and operation conditions of the collector line. The simulation results showed that the proposed protection method could trip the fault collector line accurately by considering DFIG feeding current under different fault conditions. The proposed protection method improved the relay adaptability under variable wind farm operation conditions.

[1]  M. Becherif,et al.  Line-Fault Ride-Through (LFRT) Capabilities of DFIG Wind Turbine Connected to the Power System , 2013 .

[2]  Jing Liu,et al.  A novel adaptive distance protection scheme for DFIG wind farm collector lines , 2018 .

[3]  Han Lu,et al.  A survey on impact of wind farm integration on relay protection , 2016 .

[4]  Zengping Wang,et al.  Short-Circuit Current Calculation and Harmonic Characteristic Analysis for a Doubly-Fed Induction Generator Wind Turbine under Converter Control , 2018, Energies.

[5]  Wei Chen,et al.  Fault Characteristic and Low Voltage Ride-Through Requirements Applicability Analysis for a Permanent Magnet Synchronous Generator-Based Wind Farm , 2019, Energies.

[6]  Marco Mussetta,et al.  Simulation and performance analysis of a new LVRT and damping control scheme for DFIG wind turbines , 2016, 2016 IEEE International Conference on Sustainable Energy Technologies (ICSET).

[7]  Bo Zhiqian.  Affecting factors of grid-connected wind power on fault current and impact on protection relay , 2012 .

[8]  Guobing Song,et al.  A novel protection method of collecting power lines in PMSG wind farm , 2016, 2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC).

[9]  D. Jones,et al.  Wind farm collector protection using directional overcurrent elements , 2012, PES T&D 2012.

[10]  Athula D. Rajapakse,et al.  Implementation, Comparison and Application of an Average Simulation Model of a Wind Turbine Driven Doubly Fed Induction Generator , 2017 .

[11]  M. Kenan Dosoglu.  A new approach for low voltage ride through capability in DFIG based wind farm , 2016 .

[12]  Xiangning Lin,et al.  A novel Single-phase-to-ground fault identification and isolation strategy in wind farm collector line , 2018 .

[13]  Xiangning Lin Non-member,et al.  Voltage sag problems in large-scale clustering wind farms , 2014 .

[14]  Ehab F. El-Saadany,et al.  Distance Protection of Lines Connected to Induction Generator-Based Wind Farms During Balanced Faults , 2014, IEEE Transactions on Sustainable Energy.

[15]  Feng Ting Li,et al.  Research on Adaptive Current Protection of Wind Farm , 2012 .

[16]  Xiangning Lin,et al.  Mal-operation risk assessment for the feeder overcurrent protection in large-scale clustering wind farms , 2015 .

[17]  Xiangning Lin,et al.  A novel Hausdorff distance based restrain criterion for zero-sequence differential protection of converter transformer , 2019 .

[18]  Ying Wang,et al.  Cooperative Rotor-Side SMES and Transient Control for Improving the LVRT Capability of Grid-Connected DFIG-Based Wind Farm , 2019, IEEE Transactions on Applied Superconductivity.

[19]  Sajjad Tohidi,et al.  Appropriate crowbar protection for improvement of brushless DFIG LVRT during asymmetrical voltage dips , 2018 .

[20]  S. M. Liu,et al.  Configuration and setting of protection for large-scale wind farm , 2014, 2014 International Conference on Power System Technology.

[21]  Christos D. Korkas,et al.  On the Conflict between LVRT and Line Protection in LV Distribution Systems with PVs: A Current-Limitation-Based Solution , 2019, Energies.

[22]  Abdullah Mohamed,et al.  Wind Farm Protection based on Directional Algorithm and Positive Sequence Current with and without Fiber Optic Backbone , 2019, 2019 21st International Middle East Power Systems Conference (MEPCON).

[23]  Yutong Zhao,et al.  Overcurrent protection scheme for collector lines in wind farm based on fault component current correlation analysis and multi‐agent system , 2019, IET Renewable Power Generation.