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This work presents the first comprehensive study of active anti-islanding techniques suitable for module integrated converters (MICs), which considers the high penetration level of photovoltaics (or other distributed energy resources) at low-voltage distribution networks. As such, the state of the art in anti-islanding methods are presented and the most appealing solutions compatible with MICs are selected and experimentally evaluated, reaching to some valuable conclusions from the perspective of MICs. In order to compare these methods under the same operating conditions and specifications, a benchmark is set based on zero non-detection zone, reduced false-detection zone, and power-quality requirements compliance. Based on comparative results, the most suitable methods for wide MICs penetration in low-voltage distribution networks are suggested. [ABSTRACT FROM AUTHOR]

The prescribed perspective of high accession of distributed generation photovoltaic (DG‐PV) units on low‐voltage distribution networks has brought up many issues regarding their performance in case of network transient phenomena. In this study, the design principles that DG‐PV units must incorporate in order to meet the requirements of low‐voltage ride through capability (LVRTC) are investigated through detailed theoretical analysis and calculations. The analysis shows that a realistic over‐sizing of interfaced inverters of DG‐PV as well as an appropriate selection of the equivalent interconnecting reactance XDG, in conjunction with high penetration levels, can lead to satisfaction of LVRTC demands without violating the protection limits of the network. Moreover, the scenario of uniform dispersion along the distribution lines is proved rather favourable concerning the demand of LVRTC for voltage selectivity. Finally, considering the derived outcomes, a methodology of optimum design about LVRTC is proposed within the framework of reasonable constraints, which can be applied to any low‐voltage distribution network. [ABSTRACT FROM AUTHOR]