Performance comparison for virtual impedance techniques used in droop controlled islanded microgrids
作者： Alexander Micallef , Maurice Apap , Cyril Spiteri-Staines , Josep M. Guerrero
DOI: 10.1109/SPEEDAM.2016.7526013
关键词: Impedance bridging 、 Input impedance 、 Electronic engineering 、 Impedance matching 、 Electrical impedance 、 Engineering 、 Voltage source 、 Negative impedance converter 、 Voltage droop 、 Output impedance
摘要: Droop control has limitations with respect to current sharing since the output delivered by inverters depends on their impedance ratios. In addition, harmonic voltage drops due flow of currents induce distortion at point common coupling (PCC). Virtual loops were proposed in literature improve between normalizing inverters. However, virtual have constraints this improvement occurs through redistribution harmonics which can add PCC. This paper compares performance resistive, inductive, inductive-resistive and resistive-capacitive Simulation results are given for a single phase microgrid setup achieve fair comparison different techniques.
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