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Modelling and simulation of a PV-inverter-asychronous motor association in photovoltaic pumping systems

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2 Author(s)
C. Adnene ; Lab. Energetique, ENIT, Tunis, Tunisia ; J. Moncef

In this paper, we introduce a method of control and sizing of photovoltaic systems in stand alone PV pumping plants. This approach is based on the dynamic model of the PV-DC/DC inverter-asynchronous motor. The DC-DC converter ensures an impedance adaptation between the PV and the load and an optimal PV panel output power extraction. However, the DC/AC converter ensures a PWM control of the induction motor and a sinususoidal output signal. This methodology allows an optimal control and monitoring of continuous-continuous and continuous-alternative converters by calculating respectively the DC/DC cyclic ratio and the DC/AC frequency. Contrary to classic methods, this method, which is based on the parametric model of the PV system, leads to a best prediction of the the PV installation especially with load and climatic fluctuations

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Power Engineering, 2001. LESCOPE '01. 2001 Large Engineering Systems Conference on

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