Harmonic Compensation Analysis in Offshore Wind Power Plants Using Hybrid Filters

The harmful effects of harmonics are an important issue in wind power plants (WPPs), especially in offshore applications. In offshore WPPs, the wind turbines are linked to the network through high-power converters that produce harmonics at relative low frequencies. Moreover, in the network of a WPP, the propagation of noncharacteristic harmonics and the effect of resonance contribute as well in boosting the harmonic distortion. In this paper, a solution for compensating the harmonics in a WPP by means of using hybrid filters is proposed. In this paper, not only the filtering solution is tested, but also a method for finding the best place where to connect the filter, based on a modal analysis or a harmonic modal resonance analysis, is implemented. The proposed solution has been tested by considering the model of a real 400-MW offshore WPP as the study case. As it will be shown, the hybrid filter is capable of damping the resonances in the plant, while the analysis conducted permits us to optimize its location in the plant.

[1]  P. Rodriguez,et al.  Study on harmonic resonances and damping in wind power plant , 2012, 2012 4th International Conference on Intelligent and Advanced Systems (ICIAS2012).

[2]  Pat Bodger,et al.  Power System Harmonics , 2003 .

[3]  S.V. Araujo,et al.  LCL filter design for grid-connected NPC inverters in offshore wind turbines , 2007, 2007 7th Internatonal Conference on Power Electronics.

[4]  P. Rodriguez,et al.  Current Harmonics Cancellation in Three-Phase Four-Wire Systems by Using a Four-Branch Star Filtering Topology , 2009, IEEE Transactions on Power Electronics.

[5]  Alireza Jalilian,et al.  Modal analysis of power systems to mitigate harmonic resonance considering load models , 2008 .

[6]  Dhaval Patel,et al.  Impact of wind turbine generators on network resonance and harmonic distortion , 2010, CCECE 2010.

[7]  Wilsun Xu,et al.  Harmonic resonance mode analysis , 2005, IEEE Transactions on Power Delivery.

[8]  Lukasz Hubert Kocewiak,et al.  Wind Farm Structures’ Impact on Harmonic Emission and Grid Interaction , 2010 .

[9]  Andreas Petersson,et al.  Power system harmonic analysis in wind power plants — Part I: Study methodology and techniques , 2012, 2012 IEEE Industry Applications Society Annual Meeting.

[10]  Lennart Söder.  Operation and planning of power systems , 1999 .

[11]  Babak Badrzadeh,et al.  Power system harmonic analysis in wind power plants — Part II: Practical experiences and mitigation methods , 2012, 2012 IEEE Industry Applications Society Annual Meeting.

[12]  S. Gomes,et al.  Modal analysis of industrial system harmonics using the s-domain approach , 2004, IEEE Transactions on Power Delivery.

[13]  Math Bollen,et al.  Harmonic resonances associated with wind farms , 2010 .

[14]  Hirofumi Akagi,et al.  A Transformerless Hybrid Active Filter Using a Three-Level Pulsewidth Modulation (PWM) Converter for a Medium-Voltage Motor Drive , 2010, IEEE Transactions on Power Electronics.

[15]  L. Hofmann,et al.  Resonance analyses in transmission systems: Experience in Germany , 2010, IEEE PES General Meeting.

[16]  Catalin Gavriluta,et al.  Resonance analysis of a wind power plant with modal approach , 2012, 2012 IEEE International Symposium on Industrial Electronics.

[17]  H. Akagi,et al.  A 6.6-kV transformerless shunt hybrid active filter for installation on a power distribution system , 2005, IEEE Transactions on Power Electronics.

[18]  P. Rodriguez,et al.  Harmonic resonance damping in Wind Power Plant , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[19]  Lingling Fan,et al.  Modal Analysis of a DFIG-Based Wind Farm Interfaced With a Series Compensated Network , 2011, IEEE Transactions on Energy Conversion.

[20]  Hirofumi Akagi,et al.  New trends in active filters for power conditioning , 1996 .

[21]  Xiaoyu Wang,et al.  Modal Frequency Sensitivity for Power System Harmonic Resonance Analysis , 2012, IEEE Transactions on Power Delivery.

[22]  Wilsun Xu,et al.  Harmonic Resonance Mode Analysis Using Real Symmetrical Nodal Matrices , 2007, IEEE Transactions on Power Delivery.

[23]  B. Badrzadeh,et al.  Harmonics and resonance issues in wind power plants , 2012, 2011 IEEE Power and Energy Society General Meeting.

[24]  Hanju Cha,et al.  Single-tuned Passive Harmonic Filter Design Considering Variances of Tuning and Quality Factor , 2011 .

[25]  Wilsun Xu,et al.  Application of Modal Sensitivity for Power System Harmonic Resonance Analysis , 2007, IEEE Transactions on Power Systems.

[26]  C. Larose,et al.  Type-III Wind Power Plant Harmonic Emissions: Field Measurements and Aggregation Guidelines for Adequate Representation of Harmonics , 2013, IEEE Transactions on Sustainable Energy.

[27]  H. Akagi,et al.  A Hybrid Active Filter for a Three-Phase 12-Pulse Diode Rectifier Used as the Front End of a Medium-Voltage Motor Drive , 2012, IEEE Transactions on Power Electronics.

[28]  Math Bollen,et al.  Harmonic aspects of wind power integration , 2013 .

[29]  Lukasz Hubert Kocewiak,et al.  Harmonics in large offshore wind farms , 2012 .

[30]  P. Rodriguez,et al.  Control and operation of wind turbine converters during faults in an offshore wind power plant grid with VSC-HVDC connection , 2011, 2011 IEEE Power and Energy Society General Meeting.

[31]  P. Rodriguez,et al.  Negative Sequence Current Control in Wind Power Plants With VSC-HVDC Connection , 2012, IEEE Transactions on Sustainable Energy.