تودجی, حمیدرضا

استادیار- دانشکده مهندسی برق - دانشگاه یزد- یزد- ایران

[ 1 ] - استفاده از اینورتر چندسطحی با کنترل‌کننده غیرخطی مستقیم برای اتصال مزرعه خورشیدی به شبکه

The solar photovoltaic (PV) farm delivers its harvested DC energy to the AC grid via power electronic interfaces. With insolation as well as ambient temperature variations, these power electronic converters should regulate operating point at optimal point to extracting maximum power from PV cells. In this paper, a direct nonlinear control method is developed for cascaded H-bridge multilevel inv...

[ 2 ] - ارتقای کیفیت توان و بهبود فرآیند کنترل کوره قوس الکتریکی با استفاده از UPQC

Electrical Arc Furnace (EAF) is large, nonlinear and time-varying load that affects power quality of the power system by producing many problems such as harmonics, flicker, current unbalance and low power factor. This paper proposes a modified Unified Power Quality Conditioner (UPQC) to reduce power quality problems of EAF and enhance its controllability. Harmonic reduction, power quality impro...

[ 3 ] - A Hybrid Switching Technique for Single-Phase AC-Module PV System to Reduce Power Losses and Minimize THD

This paper proposes a hybrid switching technique for a domestic PV system with AC-module architecture. In this PV system, independent control of PV modules, which are directly connected to DC terminals of a single-phase cascaded multilevel inverter, makes module-level MPPT possible to extract maximum available solar energy, especially in partial shading conditions. As one of the main contributi...

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