Open AccessImpact of fault‐ride‐through strategy on dynamic characteristics of photovoltaic power plant
Author(s) -
Luming Ge,
Linan Qu,
Lingzhi Zhu,
Ning Chen,
Lei Zhang
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0706
Subject(s) - photovoltaic system , interconnection , maximum power point tracking , inverter , ac power , grid connected photovoltaic power system , fault (geology) , electric power system , computer science , control theory (sociology) , voltage , power (physics) , engineering , electrical engineering , telecommunications , physics , quantum mechanics , control (management) , seismology , geology , artificial intelligence
The large‐scale grid‐connected photovoltaic (PV) power plant is growing rapidly these years. For power system with high penetration of PV generation, the dynamic characteristic analysis of PV plant is a key factor in system stability studies. In this study, the impact of fault‐ride‐through (FRT) strategy on dynamic characteristics of PV plant is studied. First, the mathematic relationship between plant active/reactive power, point of interconnection voltage and inverter current is deduced. Second, the impact of dynamic reactive current support logic, active current limit logic and active current restore logic is investigated, respectively. Finally, the dynamic response of PV plant and synchronous generator is compared. The simulation results show that PV plant is an important controllable power source, and a reasonable FRT strategy can improve power system stability.