articleIEEE Transactions on Power ElectronicsFeb 14, 2014BRONZE OA

Modeling and Analysis of Harmonic Stability in an AC Power-Electronics-Based Power System

XWXiongfei WangFBFrede BlaabjergWWWeimin Wu

Aalborg University · Shanghai Maritime University

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Abstract

This paper addresses the harmonic stability caused by the interactions among the wideband control of power converters and passive components in an ac power-electronics-based power system. The impedance-based analytical approach is employed and expanded to a meshed and balanced three-phase network which is dominated by multiple current- and voltage-controlled inverters with LCL- and LC-filters. A method of deriving the impedance ratios for the different inverters is proposed by means of the nodal admittance matrix. Thus, the contribution of each inverter to the harmonic stability of the power system can be readily predicted through Nyquist diagrams. Time-domain simulations and experimental tests on a…

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Topics & keywords

Topics
Keywords
  • Power electronics
  • Harmonic analysis
  • Electrical engineering
  • Harmonic
  • Electric power system
  • Power (physics)
  • Stability (learning theory)
  • Electronics
UN Sustainable Development Goals
  • Affordable and clean energy
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