--A computer based data acquisition system to monitor and control photovoltaic power generation systems using a novel method, based on Campbell scientific data acquisition board (CR3000) and graphical programming software (PC 400), has been designed and implemented. Prior to designing the data acquisition system, a small sized PV power generation system, consisting of a 6.4kw Solar panel, a cha...

In this paper we propose the study of a centrifugal pump control system driven by a three-phase induction motor, which is supplied by a PhotoVoltaic PV generator. The system includes solar panel, a DC / DC converter equipped with its MPPT control, a voltage inverter to three-phase Pulse Width Modulation PWM and a centrifugal pump driven by a three phase induction motor. In order to control the ...

The global freshwater and energy crisis have prompted worldwide investments in rainwater harvesting and solar energy systems. As the implementation of these two systems develops concurrently, they can easily become integrated into one rooftop structure. Photovoltaic systems have the potential to leach heavy metals and other toxins from newly installed, broken or aged modules. Since the type of ...

It is a well-documented fact that partial shading of a photovoltaic array reduces it output power capability. However, the relative amount of such degradation in energy production cannot be determined in a straight forward manner, as it is often not proportional to the shaded area. This paper clarifies the mechanism of partial PV shading on a number of PV cells connected in series and/or parall...

The market for photovoltaic modules is expanding rapidly, with more than 500 GW installed capacity. Consequently, there an urgent need to prepare the comprehensive recycling of end-of-life solar modules. Crystalline silicon remains primary technology, CdTe and CIGS taking up much remaining market. Modules can be separated by crushing or cutting, thermal solvent-based delamination. Separation ex...

Halogenoplumbate perovskites (MeNH3PbX3, where X is I and/or Br) have emerged as promising solar panel materials. Their limiting photovoltaic efficiency depends on charge localization and trapping processes that are presently insufficiently understood. We demonstrate that in halogenoplumbate materials the holes are trapped by organic cations (that deprotonate from their oxidized state) and Pb(2...

Bulk-heterojunction organic photovoltaic (BHJ-OPV) technology promises high efficiency at ultralow cost and weight, with potential for nontraditional applications such as building-integrated photovoltaic (PV). There is a widespread presumption that the complexity of morphology makes carrier transport in OPV irreducibly complicated and, possibly, beyond predictive modeling. However, understandin...

The main purpose of this paper is to introduce an approach to design a DC-DC boost converter with constant output voltage for grid connected photovoltaic application system. The boost converter is designed to step up a fluctuating solar panel voltage to a higher constant DC voltage. It uses voltage feedback to keep the output voltage constant. To do so, a microcontroller is used as the heart of...

This paper shows the analytical performance of maximum power point tracking for a photovoltaic system. In contemplation for photovoltaic (PV) systems to escalate their efficiency of power generation, it is mandatory to locate the Maximum power point (MPP) under all possible illumination conditions. The current-voltage (I-V) characteristics of PV devices are non-linear in nature, thereby the , M...