A Development of System Control Strategy Applied to PV Pumping System
The use of solar energy to extract water in remote area is one of the promising applications of photovoltaic (PV) systems. The photovoltaic pumping systems consist of a photovoltaic panel, a DC–DC boost converter, and a DC motor pump set connected to a storage tank. In order to improve the performance of the system, it is very important to optimize the efficiency of the photovoltaic panel, by the use of maximum power point tracking technique. The aim of this paper is to present an improved slide mode control strategy to extract the maximum power point of the PV generator; this technique allows tracking the maximum power point consequently for different operating conditions of radiation and temperature. The proposed method is tested with MATLAB/SIMULINK environment, and compared with the classical Perturb and Observe (P&O) method. The results show that the proposed method improves the performance of the overall system.
KeywordsPV pumping system MPPT Slide mode control P&O DC–DC boost converter
- 6.Aashoor, F. A. O. & Robinson, F. V. P.. A variable step size perturb and observe algorithm for photovoltaic maximum power point tracking. In 47th International IEEE Universities Power Engineering Conference (UPEC), 2012 (pp.1–6).Google Scholar
- 7.Xiao, W. & Dunford, W. G. (2004). A modified adaptive hill climbing MPPT method for photovoltaic power systems. In Proc. 35th Annu. IEEE Power Electron. Spec. Conf. (pp. 1957–1963).Google Scholar
- 8.Sarah, A., & Rachid, E. B. (2013). Modeling of a photovoltaic pumping system using centrifugal pump and DC motor. Mediterranean Green Energy Forum, 2, 1–6. mgf13s-002.Google Scholar
- 9.Abdourraziq, S., & El Bachtiri, R. (2014). A novel MPPT dual fuzzy logic applied to resistive load and pv pumping system. International Review of Automatic Control (IREACO), 7(4), 446–452.Google Scholar