Design and realization of a photovoltaic system equipped with a digital MPPT control

Yaden, M. F.; Ouariachi, M. El; Mrabti, T.; Tidhaf, Belkassem; Chadli, E.; Kassmi, K.

doi:10.1109/icmcs.2011.5945620

Cited by 6 publications

(6 citation statements)

References 10 publications

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“… Digital MPPT controller allows the operating point of the PV panels to converge instantly to the maximum power point (MPP) [2,4].  The system of the charge/discharge control leads acid batteries.…”

Section: Synoptic Diagram Of the Systemmentioning

confidence: 99%

“…This block is used to control the switch of DC-DC converter by generating a PWM signal, its duty cycle is set by the microcontroller (PIC 16F877) depending on irradiance and load variations [2,3]. This microcontroller allows us to create reliable PV system operations, and has different PORT allowing for more functions, such as: providing an analog input acquisition, sending data to a computer hard disk, visualizing data on a computer screen, and most importantly, implementing all of the subsystem described above in one block.…”

Section: Digital Mppt Controlmentioning

confidence: 99%

“…Concerning PV systems, the difficulties are the optimization of the power provided by PV panels, its transfer to the load (in our case Battery), good control of charge/discharge lead acid batteries and solar tracking PV panels [2,3]. The discrete blocks of regulation and control suggested are not reliable and induce power losses provided by PV panels [2][3][4], divergence of PV system [2][3][4], poor control of the charge/discharge batteries [5] and the collecting of illumination [6,7]. In the majority of PV systems, the major problem is the loss of power supplied by the PV panels because of inaccurate desired maximum power point (MPP) [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…Currently, much research is being carried out on cells (or panels) and on PV systems that exploit this energy [2,3]. Concerning PV systems, the difficulties are the optimization of the power provided by PV panels, its transfer to the load (in our case Battery), good control of charge/discharge lead acid batteries and solar tracking PV panels [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…Duty cycle PIC Programmable Interface Controller V 1 Terminal voltage of the LDR sensor 1 V 2 Terminal voltage of the LDR sensor 2 V 3 Terminal voltage of the LDR sensor 3 V 4 Terminal voltage of the LDR sensor 4…”

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confidence: 99%

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Photovoltaic System Equipped with Digital Command Control and Acquisition

et al. 2013

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In this paper, we present results concerning the design, the realization and the characterization of a photovoltaic system (PV), equipped with a digital controls: Power Point Tracking (MPPT), charge/discharge lead acid batteries, sun tracker and supervision. These different functions are performed with a microcontroller that has capabilities and functions to the reliability of PV systems (signal generation Pulses Width Modulation (PWM), speed etc.). Concerning the MPPT control operation, we improved the accuracy and reliability of research by improving the search algorithm “Hill Climbing” taking into account the optimal operation of PV panels depending on weather conditions (temperature and light).The experiment of each block shows that the MPPT control converges instantly the operating point of the PV panels around the maximum power point, independently of sudden changes of the illumination or the load. The control blocks charge/discharge battery and sun tracking show good control of charge/discharge lead acid batteries and the need of sun tracker to increase the power supplied by the PV panel. By using the improved MPPT control, loss of power supplied by the PV panels are very low (below 5%)

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Section: Synoptic Diagram Of the Systemmentioning

confidence: 99%

Section: Digital Mppt Controlmentioning

confidence: 99%