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Performance and Mitigation Strategy of Distributed AC-Stacked PV Inverter Architecture under Grid Background Harmonics
2017 IEEE Energy Conversion Congress and Exposition (ECCE) (2017)
  • Namwon Kim, University of North Carolina at Charlotte
  • Hamidreza Jafarian
  • Babak Parkhideh, University of North Carolina at Charlotte
  • Johan Enslin
Abstract
Grid-tied Photovoltaic (PV) inverters are required to have harmonics mitigation control to reduce harmonics distortion on the output current caused by the impact of grid background harmonics. In this paper, a decentralized control strategy for reduction of the impact of distorted grid voltage on the AC-stacked PV inverter architecture is proposed. Two control schemes with the selective harmonics mitigation strategy and without any handshaking among the inverters are proposed for this architecture and analyzed to present the improvement of the power quality as well as the operating margin of the architecture. The proposed methods are analyzed by impedance analysis and verified their feasibility and performance through a controller hardware-in-the-loop test.
Disciplines
Publication Date
Fall October 5, 2017
Citation Information
Namwon Kim, Hamidreza Jafarian, Babak Parkhideh and Johan Enslin. "Performance and Mitigation Strategy of Distributed AC-Stacked PV Inverter Architecture under Grid Background Harmonics" 2017 IEEE Energy Conversion Congress and Exposition (ECCE) (2017)
Available at: http://works.bepress.com/hamidreza-jafarian/2/