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Power control of a solar/wind generation system without wind measurement: a passivity/sliding mode approach

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3 Author(s)
Valenciaga, F. ; Dept. of Eng., La Plata Nat. Univ., Argentina ; Puleston, P.F. ; Battaiotto, P.E.

This paper deals with the control of the output power of a solar/wind stand-alone system. The control system regulates the generation of the wind subsystem in order to satisfy, jointly with the photovoltaic generation subsystem, the load and battery charge power demand. The controller is designed using a theoretical framework that unifies passivity and sliding mode techniques. The resultant control law does not need wind measurement and only relies on rotational speed and current measurements. An analysis of the acceleration estimate error is carried out and a countermeasure to compensate its effects is proposed. Finally, the performance of the controller is assessed through computer simulation, using a comprehensive nonlinear model of the plant.

Published in:

Energy Conversion, IEEE Transactions on  (Volume:18 ,  Issue: 4 )