Contributions to Modeling, Simulation and Controlling of a Pumping System Powered by a Wind Energy Conversion System

Dorin Bordeașu, Octavian Proștean and Cornel Hatiegan
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Dorin Bordeașu: Department of Automation and Applied Informatics, Faculty of Automation and Computing, Polytechnic University of Timisoara, 300006 Timișoara, Romania
Octavian Proștean: Department of Automation and Applied Informatics, Faculty of Automation and Computing, Polytechnic University of Timisoara, 300006 Timișoara, Romania
Cornel Hatiegan: Department of Engineering Sciences, Faculty of Engineering, Babeș-Bolyai University, 400084 Cluj-Napoca, Romania

Energies, 2021, vol. 14, issue 22, 1-18

Abstract: At present, the energy consumption of the pumping unit represents the highest cost in operating a pumping system. Due to this reason, this paper proposes a reliable and robust solution for integrating a wind energy conversion system (WECS) into an already existing pumping system (PS), without being overly intrusive for the PS, and without altering the control strategy or the hardware of the commercial WECS. The current work begins by presenting the modeling undertaken, which includes a WECS with pitchable blades, a doubly-fed induction generator (DFIG) together with its power converter, a centrifugal pump, an induction motor (IM) with its power converter, and an irrigation network with a pressure transducer. The second part consists of the proposed three-level controller: a general controller that regulates the WECS power demand according to the pumping pressure reference; three second-level controllers; two necessary for the WECS and one for the PS; and three first level controllers, two for controlling the power converters of the WECS generator and one for controlling the pump motor power converter. Finally, the simulation results of the proposed system control strategy are presented, showing its technical feasibility and good performance.

Keywords: pumping system; wind energy conversion system; cascade pi controller; pressure controller; maximum power point tracking; vector controller; variable frequency controller; modeling and simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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