Stand-Alone PV System Using Adaptive Control
Nasr E. Shtawa1, Mustafa R. Abuzeid2, and Labib M. Daloub2
1.University of Tripoli/ Electrical Eng, Dept, Tripoli, Libya
2.University of AljabelAlgharbi/ Electrical EngineeringDept, Gharian, Libya
2.University of AljabelAlgharbi/ Electrical EngineeringDept, Gharian, Libya
Abstract—There are many applications today in which photovoltaic (PV) modules can be used, in particular small off-grid loads (stand-alone), such as basic lighting, refrigeration, telecommunications and water pumping. In some of these cases, a Direct Current (DC) motor is connected to a PV module (PVM) as load; hence, these PV systems must be studied to improve their efficiency and to increase their growth. The matching could be reached in two ways:-First, without interfacing circuit, selecting carefully the load according to a load I-V curve, mechanical load characteristics and PV parameters. Second, by including an electronic control device like (adaptive control), known as maximum equilibrium point tracker (MPPT), which continuously matches the output characteristics of the PV to the input characteristics of the load. This paper only addresses the second way, which uses an interfacing circuit in order to match photovoltaic modules to a load. The adaptive controller is a control system that frequently adjusts the electrical operation point of the PV modules to the maximum equilibrium point, the mechanism of the adaptive controller by adjusting the duty ratio of (DC-DC) power converter, which used as interfacing circuit between PV and load.
Index Terms—stand-alone PV system, adaptive control and simulations
Cite: Nasr E. Shtawa, Mustafa R. Abuzeid, and Labib M. Daloub, "Stand-Alone PV System Using Adaptive Control," Jounal of Automation and Control Engineering, Vol. 2, No. 4, pp. 406-409, December, 2014. doi: 10.12720/joace.2.4.406-409
Index Terms—stand-alone PV system, adaptive control and simulations
Cite: Nasr E. Shtawa, Mustafa R. Abuzeid, and Labib M. Daloub, "Stand-Alone PV System Using Adaptive Control," Jounal of Automation and Control Engineering, Vol. 2, No. 4, pp. 406-409, December, 2014. doi: 10.12720/joace.2.4.406-409