Frede Blaabjerg

  1. 2017
  2. E-pub ahead of print
  3. Udgivet

    Active Damping Control for Three-Phase Slim DC-link Drive System, -- overview and investigation. / Yang, Feng; Wang, Dong; Blaabjerg, Frede; Wang, Xiongfei; Davari, Pooya; Lu, Kaiyuan.

    Proceedings of IFEEC - ECCE Asia 2017. IEEE Press, 2017. s. 1-6.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  4. Accepteret/In press

    A Data-Driven Stochastic Reactive Power Optimization Considering Uncertainties in Active Distribution Networks and Decomposition Method. / Ding, Tao; Yang, Qingrun; Yang, Yongheng; Li, Cheng; Bie, Zhaohong; Blaabjerg, Frede.

    I: IEEE Transactions on Smart Grid, Vol. PP, Nr. 99, 12.2017, s. 1-11.

    Publikation: Forskning - peer reviewTidsskriftartikel

  5. Udgivet

    A Dual-Buck–Boost AC/DC Converter for DC Nanogrid With Three Terminal Outputs. / Wu, Weimin; Wang, Houqing; Liu, Yuan; Min, Huang; Blaabjerg, Frede.

    I: I E E E Transactions on Industrial Electronics, Vol. 64, Nr. 1, 01.2017, s. 295-299.

    Publikation: Forskning - peer reviewTidsskriftartikel

  6. Accepteret/In press

    A Fast Electro-Thermal Co-Simulation Modeling Approach for SiC Power MOSFETs. / Ceccarelli, Lorenzo; Bahman, Amir Sajjad; Iannuzzo, Francesco; Blaabjerg, Frede.

    2017. Paper presented at 2017 IEEE Applied Power Electronics Conference and Exposition (APEC), Tampa, FL, USA.

    Publikation: Forskning - peer reviewPaper uden forlag/tidsskrift

  7. Udgivet

    A Fixed-Frequency Bidirectional Resonant DC-DC Converter Suitable for Wide Voltage Gain Range. / Shen, Yanfeng; Wang, Huai; Al-Durra, Ahmed ; Blaabjerg, Frede; Xiaofeng, Sun.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017. s. 2084-2090.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  8. Accepteret/In press
  9. E-pub ahead of print

    A Hierarchical Modeling for Reactive Power Optimization With Joint Transmission and Distribution Networks by Curve Fitting. / Ding, Tao; Li, Cheng; Huang, Can; Yang, Yongheng; Li, Fangxing; Blaabjerg, Frede.

    I: IEEE Systems Journal, 09.01.2017.

    Publikation: Forskning - peer reviewTidsskriftartikel

  10. E-pub ahead of print

    A Lifetime Prediction Method for LEDs Considering Real Mission Profiles. / Qu, Xiaohui; Wang, Huai; Zhan, Xiaoqing; Blaabjerg, Frede; Chung, Henry Shu-hung.

    I: IEEE Transactions on Power Electronics, 2017.

    Publikation: Forskning - peer reviewTidsskriftartikel

  11. Accepteret/In press
  12. E-pub ahead of print
  13. Udgivet
  14. Udgivet
  15. Udgivet

    Analysis, control and design of speed control of electric vehicles delayed model: multi-objective fuzzy fractional-order PI λμ PIλDμ controller. / Khooban, Mohammad-Hassan; ShaSadeghi, Mokhtar; Niknam, Taher; Blaabjerg, Frede.

    I: IET Science, Measurement & Technology, Vol. 11, Nr. 3, 05.2017, s. 249-261.

    Publikation: Forskning - peer reviewTidsskriftartikel

  16. Udgivet
  17. Accepteret/In press
  18. Accepteret/In press

    Analysis of Three-Phase Rectifier Systems with Controlled DC-Link Current Under Unbalanced Grids. / Kumar, Dinesh; Davari, Pooya; Zare, Firuz; Blaabjerg, Frede.

    Proceedings of APEC 2017. IEEE Press, 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  19. Accepteret/In press
  20. Udgivet

    An Enhanced Dual Droop Control Scheme for Resilient Active Power Sharing among Paralleled Two-Stage Converters. / Liu, Hongpeng; Yang, Yongheng; Wang, Xiongfei; Loh, Poh Chiang; Blaabjerg, Frede; Wang, Wei; Xu, Dianguo.

    I: IEEE Transactions on Power Electronics, Vol. 32, Nr. 8, 08.2017, s. 6091 - 6104 .

    Publikation: Forskning - peer reviewTidsskriftartikel

  21. Udgivet

    A new load frequency control strategy for micro-grids with considering electrical vehicles. / Khooban, Mohammad-Hassan; Niknam, Taher; Blaabjerg, Frede; Dragicevic, Tomislav.

    I: Electric Power Systems Research, Vol. 143, 02.2017, s. 585–598.

    Publikation: Forskning - peer reviewTidsskriftartikel

  22. Udgivet
  23. Accepteret/In press

    An Improved Modulation Strategy for the Three-Phase Z-Source Inverters (ZSIs). / Abdelhakim, Ahmed; Davari, Pooya; Blaabjerg, Frede; Mattavelli, Paolo.

    Proceedings of the IEEE Energy Conversion Congress & Exposition, ECCE 2017. IEEE Press, 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  24. Udgivet

    A Novel Quasi-SEPIC High-Voltage Boost DC-DC Converter. / Siwakoti, Yam Prasad; N. Soltani, Mohsen; Mostaan, Ali; Blaabjerg, Frede.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017. s. 2213-2216.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  25. Udgivet

    A Reconfigurable Series Resonant DC-DC Converter for Wide-Input and Wide-Output Voltages. / Shen, Yanfeng; Wang, Huai; Qin, Zian; Al-Durra, Ahmed ; Blaabjerg, Frede.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017. s. 343-349.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  26. Udgivet

    A Robust DC-Split-Capacitor Power Decoupling Scheme for Single-Phase Converter. / Yao, Wenli; Loh, Poh Chiang; Tang, Yi; Wang, Xiongfei; Zhang, Xiaobin; Blaabjerg, Frede.

    I: I E E E Transactions on Power Electronics, Vol. 32, Nr. 11, 11.2017, s. 8419 - 8433.

    Publikation: Forskning - peer reviewTidsskriftartikel

  27. Udgivet

    A robust grid current controller with grid harmonic and filter resonance damping capabilities using a closed-loop admittance shaping. / Pérez, Jorge; Cóbreces, Santiago; Wang, Xiongfei; Blaabjerg, Frede; Griñó, Robert.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017. s. 2625-2632.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  28. Afsendt

    Artificial Neural Network based DC-link Capacitance Estimation in a Diode-bridge Front-end Inverter System. / Soliman, Hammam Abdelaal Hammam; Wang, Huai; Blaabjerg, Frede; Abdelsalam, Ibrahim.

    Proceedings of International Future Energy Electronics Conference 2017 - ECCE Asia. 2017. s. 1.

    Publikation: Forskning - peer reviewKonferenceabstrakt i proceeding

  29. Accepteret/In press
  30. Udgivet
  31. Udgivet

    A Synchronization Scheme for Single-Phase Grid-Tied Inverters under Harmonic Distortion and Grid Disturbances. / Hadjidemetriou, Lenos; Yang, Yongheng; Kyriakides, Elias; Blaabjerg, Frede.

    I: IEEE Transactions on Power Electronics, Vol. 32, Nr. 4, 04.2017, s. 2784-2793.

    Publikation: Forskning - peer reviewTidsskriftartikel

  32. Udgivet

    A Two-Stage Robust Optimization for Centralized-Optimal Dispatch of Photovoltaic Inverters in Active Distribution Networks. / Ding, Tao; Li, Cheng; Yang, Yongheng; Jiang, Jiangfeng; Bie, Zhaohong; Blaabjerg, Frede.

    I: IEEE Transactions on Sustainable Energy, Vol. 8, Nr. 2, 04.2017, s. 744-754.

    Publikation: Forskning - peer reviewTidsskriftartikel

  33. Accepteret/In press
  34. Accepteret/In press

    A Voltage Doubler Circuit to Extend the Soft-switching Range of Dual Active Bridge Converters. / Qin, Zian; Shen, Yanfeng; Wang, Huai; Blaabjerg, Frede.

    IEEE APEC 2017. IEEE Press, 2017. s. 300-306.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  35. Accepteret/In press
  36. Accepteret/In press

    Capacitance Estimation Algorithm based on DC-Link Voltage Harmonics Using ANN in Three-Phase Motor Drive Systems. / Soliman, Hammam Abdelaal Hammam; Davari, Pooya; Wang, Huai; Blaabjerg, Frede.

    Proceedings of the IEEE Energy Conversion Congress & Exposition, ECCE 2017. IEEE Press, 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  37. Accepteret/In press
  38. Udgivet

    Decentralized Economic Dispatch Scheme With Online Power Reserve for Microgrids. / Nutkani, I. U.; Loh, Poh Chiang; Wang, P.; Blaabjerg, Frede.

    I: I E E E Transactions on Smart Grid, Vol. 8, Nr. 1, 01.2017, s. 139 - 148.

    Publikation: Forskning - peer reviewTidsskriftartikel

  39. Accepteret/In press
  40. Udgivet

    Design and Analysis of Robust Active Damping for LCL Filters using Digital Notch Filters. / Yao, Wenli; Yang, Yongheng; Zhang, Xiaobin; Blaabjerg, Frede; Loh, Poh Chiang.

    I: I E E E Transactions on Power Electronics, Vol. 32, Nr. 3, 03.2017, s. 2360-2375.

    Publikation: Forskning - peer reviewTidsskriftartikel

  41. Udgivet

    Development of Flexible Active Power Control Strategies for Grid-Connected Photovoltaic Inverters by Modifying MPPT Algorithms. / Sangwongwanich, Ariya; Yang, Yongheng; Blaabjerg, Frede.

    Proceeding of the 3rd IEEE International Future Energy Electronics Conference (IFEEC 2017) and ECCE Asia. IEEE Press, 2017. s. 1-6.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  42. Udgivet
  43. E-pub ahead of print
  44. E-pub ahead of print
  45. Udgivet
  46. Accepteret/In press

    Effects of DC-link Filter on Harmonic and Interharmonic Generation in Three-phase Adjustable Speed Drive Systems. / Soltani, Hamid; Davari, Pooya; Kumar, Dinesh; Zare, Firuz; Blaabjerg, Frede.

    Proceedings of the IEEE Energy Conversion Congress & Exposition, ECCE 2017. IEEE Press, 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  47. Accepteret/In press
  48. Udgivet

    Energy Saving and Efficient Energy Use By Power Electronic Systems. / Blaabjerg, Frede; Wang, Huai; Davari, Pooya; Qu, Xiaohui; Zare, Firuz.

    Lecture Notes in Energy : Energy Harvesting and Energy Efficiency. red. / Nicu Bizon; Naser Mahdavi Tabatabaei; Frede Blaabjerg; Erol Kurt. Vol. 37 Springer, 2017. s. 1-14.

    Publikation: Forskning - peer reviewBidrag til bog/antologi

  49. Udgivet
  50. Udgivet

    Evaluating Maximum Photovoltaic Integration in District Distribution Systems Considering Optimal Inverter Dispatch and Cloud Shading Conditions. / Ding, Tao; Kou, Yu; Yang, Yongheng; Zhang, Yiyang; Yan, Huan; Blaabjerg, Frede.

    I: IET Renewable Power Generation, Vol. 11, Nr. 1, 01.2017, s. 165-172.

    Publikation: Forskning - peer reviewTidsskriftartikel

  51. Udgivet

    Extending the Linear Modulation Range to the Full Base Speed Using a Single DC-Link Multilevel Inverter With Capacitor-Fed H-Bridges for IM Drives. / Rahul, Arun; Pramanick, Sumit; Kaarthik, R. Sudharshan ; Gopakumar, K.; Blaabjerg, Frede.

    I: I E E E Transactions on Power Electronics, Vol. 32, Nr. 7, 07.2017, s. 5450 - 5458.

    Publikation: Forskning - peer reviewTidsskriftartikel

  52. Udgivet
  53. Udgivet

    Frequency Adaptability of Harmonics Controllers for Grid-Interfaced Converters. / Yang, Yongheng; Zhou, Keliang; Blaabjerg, Frede.

    I: International Journal of Control, Vol. 90, Nr. 1, 04.2017, s. 1-12.

    Publikation: Forskning - peer reviewTidsskriftartikel

  54. Accepteret/In press

    Fuse Modeling for Reliability Study of Power Electronics Circuits. / Bahman, Amir Sajjad; Iannuzzo, Francesco; Blaabjerg, Frede.

    Proceedings of the 32nd Annual IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2017. s. 829-836.

    Publikation: Forskning - peer reviewKonferenceabstrakt i proceeding

  55. Udgivet
  56. Udgivet

    Harmonic Analysis and Mitigation of Low-Frequency Switching Voltage Source Inverter with Series LC Filtered VSI. / Bai, Haofeng; Wang, Xiongfei; Loh, Poh Chiang; Blaabjerg, Frede.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  57. Udgivet

    Harmonic Coupling Analysis of a Multi-Drive System with Slim DC-link Drive. / Yang, Feng; Kwon, Jun Bum; Blaabjerg, Frede; Wang, Xiongfei.

    Proceedings of IEEE, ISIE 2017. IEEE Press, 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  58. Udgivet

    Harmonic Emissions of Three-Phase Diode Rectifiers in Distribution Networks. / Zare, Firuz; Soltani, Hamid; Kumar, Dinesh; Davari, Pooya; Miranda, Hernan; Blaabjerg, Frede.

    I: IEEE Access, Vol. 5, 2017, s. 2819 - 2833 .

    Publikation: Forskning - peer reviewTidsskriftartikel

  59. Udgivet
  60. Accepteret/In press
  61. E-pub ahead of print
  62. Udgivet

    H-Bridge Transformerless Inverter with Common Ground for Single-Phase Solar-Photovoltaic System. / Siwakoti, Yam Prasad; Blaabjerg, Frede.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  63. Udgivet
  64. Udgivet

    High-Voltage DC-DC Converter Topology for PV Energy Utilization - Investigation and Implementation. / Sanjeevikumar, Padmanaban; Blaabjerg, Frede; Wheeler, Patrick; Olorunfemi Ojo, Joseph; Ertas, Ahmet H.

    I: Electric Power Components & Systems, Vol. 45, Nr. 3, 2017, s. 221-232.

    Publikation: Forskning - peer reviewTidsskriftartikel

  65. Udgivet

    Impacts of Ripple Current to the Loading and Lifetime of Power Semiconductor Device. / Ma, Ke; Choi, Uimin; Blaabjerg, Frede.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017. s. 2305-2311.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  66. Udgivet

    Impedance Analysis of SOGI-FLL-Based Grid Synchronization. / Yi, Hao; Wang, Xiongfei; Blaabjerg, Frede; Zhuo, Fang.

    I: I E E E Transactions on Power Electronics, Vol. 32, Nr. 10, 10.2017, s. 7409 - 7413 .

    Publikation: Forskning - peer reviewTidsskriftartikel

  67. Udgivet
  68. Udgivet
  69. Afsendt
  70. Udgivet

    Input Harmonic Analysis on the Slim DC-Link Drive Using Harmonic State Space Model. / Yang, Feng; Kwon, Jun Bum; Blaabjerg, Frede; Wang, Xiongfei.

    Proceedings of IFEEC - ECCE Asia 2017. IEEE Press, 2017. s. 1-6.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  71. Udgivet

    Interharmonics from Grid-Connected PV Systems: Mechanism and Mitigation. / Sangwongwanich, Ariya; Yang, Yongheng; Sera, Dezso; Blaabjerg, Frede.

    Proceeding of the 3rd IEEE International Future Energy Electronics Conference (IFEEC 2017) and ECCE Asia. IEEE Press, 2017. s. 1-6.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  72. Accepteret/In press
  73. Udgivet

    Lifetime Evaluation of PV Inverters considering Panel Degradation Rates and Installation Sites. / Sangwongwanich, Ariya; Yang, Yongheng; Sera, Dezso; Blaabjerg, Frede.

    Proceedings of the 32nd Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2017). IEEE Press, 2017. s. 2845-2852.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  74. Udgivet

    Lifetime Prediction of IGBT Modules based on Linear Damage Accumulation. / Choi, Uimin; Blaabjerg, Frede; Ma, Ke.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017. s. 2276-2281.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  75. Accepteret/In press
  76. Afsendt

    Loss Distribution and Thermal Behaviour of the Y-source Converter for a Wide Power and Voltage Range. / Gadalla, Brwene Salah Abdelkarim; Schaltz, Erik; Siwakoti, Yam Prasad; Blaabjerg, Frede.

    Proceedings of 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia). IEEE Press, 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  77. Udgivet

    Low Voltage Ride-Through of Two-Stage Grid-Connected Photovoltaic Systems Through the Inherent Linear Power-Voltage Characteristic. / Yang, Yongheng; Sangwongwanich, Ariya; Liu, Hongpeng; Blaabjerg, Frede.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017. s. 3582-3588.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  78. Accepteret/In press
  79. E-pub ahead of print
  80. E-pub ahead of print

    Modeling of VSC-Based Power Systems in The Extended Harmonic Domain. / Esparza, Miguel; Segundo-Ramirez, Juan; Kwon, Jun Bum; Wang, Xiongfei; Blaabjerg, Frede.

    I: I E E E Transactions on Power Electronics, 2017.

    Publikation: Forskning - peer reviewTidsskriftartikel

  81. Udgivet

    Modelling and Design of Active Thermal Controls for Power Electronics of Motor Drive Applications. / Vernica, Ionut; Blaabjerg, Frede; Ma, Ke.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017. s. 2902-2909.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  82. Udgivet

    Modelling of the modified-LLCL-filter-based single-phase grid-tied Aalborg inverter. / Liu, Zifa; Wu, Huiyun; Liu, Yuan; Ji, Junhao; Wu, Weimin; Blaabjerg, Frede.

    I: IET Power Electronics, Vol. 10, Nr. 2, 02.2017, s. 151-155.

    Publikation: Forskning - peer reviewTidsskriftartikel

  83. Accepteret/In press
  84. Accepteret/In press
  85. Udgivet

    Offset-Free Direct Power Control of DFIG Under Continuous-Time Model Predictive Control. / Errouissi, Rachid; Al-Durra, Ahmed; Muyeen, S.M.; Leng, Siyu; Blaabjerg, Frede.

    I: I E E E Transactions on Power Electronics, Vol. 32, Nr. 3, 03.2017, s. 2265 - 2277.

    Publikation: Forskning - peer reviewTidsskriftartikel

  86. E-pub ahead of print

    On Secondary Control Approaches for Voltage Regulation in DC Microgrids. / Peyghami Akhuleh, Saeed; Mokhtari, Hossein; Davari, Pooya; Loh, Pon Chiang; Blaabjerg, Frede.

    I: I E E E Transactions on Industry Applications, 05.2017.

    Publikation: Forskning - peer reviewTidsskriftartikel

  87. Udgivet
  88. Udgivet
  89. Udgivet

    Overview of DFIG-based Wind Power System Resonances under Weak Networks. / Song, Yipeng; Blaabjerg, Frede.

    I: I E E E Transactions on Power Electronics, Vol. 32, Nr. 6, 06.2017, s. 4370-4394.

    Publikation: Forskning - peer reviewTidsskriftartikel

  90. Udgivet
  91. Accepteret/In press
  92. Udgivet
  93. Accepteret/In press

    Performance Evaluation of Electronic Inductor-Based Adjustable Speed Drives with Respect to Line Current Interharmonics. / Soltani, Hamid; Davari, Pooya; Zare, Firuz; Blaabjerg, Frede.

    Proceedings of 2017 IEEE Applied Power Electronics Conference and Exposition. 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  94. Accepteret/In press
  95. Udgivet

    Reactive Power Control in AC Power Systems : Fundamentals and Current Issues. / Mahdavi Tabatabaei, Naser; Jafari Aghbolaghi, Ali; Bizon, Nicu; Blaabjerg, Frede.

    Springer, 2017. 634 s.

    Publikation: Forskning - peer reviewBog

  96. Udgivet
  97. Udgivet

    Reactive Power Role and Its Controllability in AC Power Transmission Systems. / Ebrahimzadeh, Esmaeil; Blaabjerg, Frede.

    Reactive Power Control in AC Power Systems: Fundamentals and Current Issues. red. / Naser Mahdavi Tabatabaei; Ali Jafari Aghbolaghi; Nicu Bizon; Frede Blaabjerg. Springer, 2017. s. 117-136.

    Publikation: Forskning - peer reviewBidrag til bog/antologi

  98. Udgivet

    Recent advances and challenges of fuel cell based power system architectures and control – A review. / Das, Vipin; Sanjeevikumar, Padmanaban; Venkitusamy, Karthikeyan; Selvamuthukumaran, Rajasekar; Blaabjerg, Frede; Siano, Pierluigi.

    I: Renewable & Sustainable Energy Reviews, Vol. 73, 06.2017, s. 10-18.

    Publikation: Forskning - peer reviewTidsskriftartikel

  99. Accepteret/In press

    Reliability Oriented Design of a Grid-Connected Photovoltaic Microinverter. / Shen, Yanfeng; Wang, Huai; Blaabjerg, Frede.

    ECCE-Asia 2017. 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  100. Udgivet
  101. Udgivet

    Sheppard-Taylor Isolated High Boost DC-DC Converter. / Chub, Andrii; Siwakoti, Yam Prasad; Vinnikov, Dmitri; Blaabjerg, Frede.

    Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Press, 2017.

    Publikation: Forskning - peer reviewKonferenceartikel i proceeding

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