Low-frequency oscillation analysis of two-stage photovoltaic grid-connected system
نویسندگان
چکیده
The low-frequency oscillation (LFO) problem of photovoltaic (PV) grid-connected systems has been a critical concern for safe operation, whereas the impact dc-side components PV plants are always ignored and single-stage plant is used. This paper performs comprehensive analysis LFOs in two-stage system. complete small-signal model system built. On this basis, LFO modes high-frequency (HFO) calculated related participating determined. Then, key parameters on characteristics investigated with root locus analysis. theoretical verified through PSCAD/EMTDC simulations.
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ژورنال
عنوان ژورنال: Energy Reports
سال: 2022
ISSN: ['2352-4847']
DOI: https://doi.org/10.1016/j.egyr.2022.08.032