Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Harnessing Wind Energy with Hydrostatic Transmission Coupled to an Electromagnetic Frequency Regulator

Version 1 : Received: 5 November 2020 / Approved: 6 November 2020 / Online: 6 November 2020 (09:26:11 CET)

How to cite: Patriota, A.S.L.; Pinheiro, R.F.; Medina T., G.I. Harnessing Wind Energy with Hydrostatic Transmission Coupled to an Electromagnetic Frequency Regulator. Preprints 2020, 2020110236. https://doi.org/10.20944/preprints202011.0236.v1 Patriota, A.S.L.; Pinheiro, R.F.; Medina T., G.I. Harnessing Wind Energy with Hydrostatic Transmission Coupled to an Electromagnetic Frequency Regulator. Preprints 2020, 2020110236. https://doi.org/10.20944/preprints202011.0236.v1

Abstract

This work presents an alternative to harnessing wind energy with an Electromagnetic Frequency Regulator (EFR) coupled to a hydrostatic transmission and associated with a horizontal axis wind turbine, a bidirectional frequency inverter and a secondary energy source, in a hybridized system. The hydrostatic transmision is composed by a fixed displacement axial piston pump and a variable displacement, swash plate, axial piston motor. Feedback linearization was used as a technique to control the motor geometric displacement, and a prediction algorithm for the steady state rotations of the armature and the electromagnetic field has been developed. A 5\,kW project was simulated on a Scilab platform, with combinations of constant or variable load, and constant or variable wind speed. The results indicated that the system was able to supply the generator load, adapting to fluctuations in wind speed. The possibility of storing wind energy through the inverter has also been proven. The system can accumulate energy in batteries during the fastest wind regimes, to use it when the turbine power is lower than the load.

Keywords

Electromagnetic Frequency Regulator; Hydrostatic transmission; Wind turbines; Feedback linearization; Variable load; Induction machine; Slip

Subject

Engineering, Electrical and Electronic Engineering

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