Theofilos A. Papadopoulos

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The rapid advancement of Renewable Energy Sources and especially Photovoltaics (PV) was aided by the generous Feed-in-Tariffs employed worldwide. However, such incentives are disappearing and the need of market revitalization is apparent. Providing energy storage in PV installations is considered as an attractive option from a technical point of view, since(More)
A multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system is proposed for narrowband power-line communication (NB-PLC) applications in multi-user medium-voltage (MV) broadcast/multicast networks. A 2-input / 3-output spatial channel model response is simulated for a 3-phase MV broadcast network over the 3-500 kHz(More)
Modeling of power distribution transformers in the high-frequency range is of crucial importance in cases such as using power-line communication technology or investigating transient overvoltages at the transformer low-voltage side. This paper presents a simple black-box modeling methodology for distribution transformers using transfer functions defined by(More)
The photovoltaic market has recently experienced an enormous expansion, mainly due to the generous Feed-in-Tariffs (FiTs) adopted by many countries. However, in the recent years FiTs have been considerably reduced or even disappeared as their role in the PV deployment has ended. One of the alternatives is the Net-Metering (NEM) policy, which has attracted(More)
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