Open AccessLow DC voltage PV generation system with power factor correction and harmonic suppression capability in a distribution network
Author(s) -
Ye Tao,
Dai NingYi,
Lao Keng Weng,
Lam ChiSeng,
Wong ManChung
Publication year - 2019
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2018.5144
Subject(s) - photovoltaic system , maximum power point tracking , grid connected photovoltaic power system , inverter , harmonics , power factor , ac power , electronic engineering , computer science , grid , harmonic , stand alone power system , engineering , voltage , electrical engineering , distributed generation , renewable energy , physics , quantum mechanics , geometry , mathematics
Building‐integrated photovoltaics (PVs) is one of the most promising and elegant ways of producing on‐site electricity. The compact and cost‐effective PV integration system needs to be developed to convert dc voltage into ac compatible with the grid. A single‐stage PV inverter is proposed, and its design and control system implementation are focused on. The proposed system is able to transfer active power to the grid with maximum power point tracking. At the same time, the PV inverter can control reactive power and suppress harmonics due to non‐linear loads. By coupling to grid via a series LC branch, the proposed system operates on a dc bus voltage much lower than that of the conventional PV inverter, so that less PV panels need to be connected in series. Therefore, the proposed system is a low‐cost and multi‐functional alternative to PV inverters in building‐integrated applications. Simulation and experimental results are provided to validate its effectiveness.