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Short-term load prediction is an important part of power grid dispatching, which is effective to unit commitment, economic dispatching and optimal power flow. With electrification level higher and higher, especially improvement of air conditioning ownership and usage, peak load fluctuation is more obvious for cooling in summer. In view of the typical characteristics of summer climate in Hubei, the...
The efficiency of a photovoltaic (PV) system depends on very intermittent environmental variables such as irradiance and temperature. Understanding of the behavior of PV systems in function of these variables depends on mathematical models for PV cells, modules and arrays. This becomes more complex when partial shading occurs. This paper presents three different MATLAB-based modeling strategies for...
This paper provides detailed and complete models of the large-scale transmission-connected PV plants which have considered the dynamics of maximum power point tracking (MPPT). These models are based on the WECC's generic PV system models whose circuit and control modes are modified to build our new PV models. In terms of the circuit, the detailed inner-loop current control model is adopted for the...
Despite the great development in modeling the I-V characteristics of the PV module, the outdoor conditions variations still the main difficulty to predict its performances. In this work, anew approach proposed to reconstruct the I-V characteristic of a PV module under variousreal conditions of irradiance and temperature. Based on the characterization tests data, carried out on four different PV modules...
We present analytical on-state drain current model of 2-dimensional (2D) planar-type poly-Silicon TFT devices. The effect of grain and grain boundary on the carrier transport of 2D poly-Silicon devices has been studied by simulation (matlab) tool. Especially, we considered physical parameters such as grain length (Lg), grain boundary length (Lgb) and grain boundary trap density (NGB) in order to analyze...
Mathematical and electronic models of temperature characteristics of solar cells and photovoltaic modules in a function to increase energy efficiency of the cells and the modules are considered and presented in the paper. Temperature analysis of solar cell current, open circuit voltage and power of solar cell is given. Obtained results are compared with results of software simulations for one practically...
This paper presents an investigation into the thermal behavior of a DC-DC converter integrated on the back side of a thin-film photovoltaic (PV) module. Analytical thermal models of the converter and the PV module are made and the results obtained from the models are compared to the results obtained by computational fluid dynamics (CFD) simulations.
In this paper we discuss performance results of a novel real-time closed-loop power amplifier (PA) linearization technique that has originally been proposed by Ahmed and Li. The novel approach performs on-the-fly prediction and measurement of the PA AM/AM and AM/PM non-linearity, stores such non-linear characteristics and calculates their inverse functions in order to pre-distort the base-band amplitude...
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