Output Power Smoothing and Hydrogen Production by Using Variable Speed Wind Generators

Abstract

This paper presents a combination system of wind energy conversion and hydrogen production. Hydrogen is expected as an alternative energy source in the future, and this is the best way to produce it from renewable energy like wind energy. On the other hand, the output of a wind generator, in general, fluctuates greatly due to wind speed variations, and thus the output fluctuations can have a serious influence on the power system operation. In the proposed system, a variable speed wind generator is adopted, and an electrolyzer is installed in parallel with it for hydrogen production. Output power from the wind generator is smoothed and supplied to the power system as well as to the electrolyzer based on the cooperative control method. The performance of the proposed system is evaluated by simulation analyses, in which simulations are performed by using PSCAD/EMTDC. Index Terms-Hydrogen production, power smoothing, variable speed wind generator, wind energy conversion.

Modelling and simulation of an alkaline electrolyser cell

“…This model was validated against experimental data and predicted the thermal behaviour, cell voltage, gas purities and efficiencies for any given power. Other empirical models have also been developed [20][21][22][23][24], but these have either been less detailed or not tested and verified against experimental data. In fact models based on empirical parameters typically only described the current and voltage characteristics [23,24].…”

Wind Diesel Hybrid Power System with Hydrogen Storage

“…Powered by the DC electrical sources and pure water, an electrolyzer can effectively split water into hydrogen and oxygen. Since it is difficult to obtain analytically the inverse of the equation 34, linear models are used generally in literature (R. Takahashi et al 2010).…”

Controlling PMSG-based wind generation by a locally available signal to damp power system inter-area oscillations

“…Like PMSG, DFIG is modeled in a d-q rotating reference frame [10,11] and [33]. The parameters of the DFIG are given in [34]. The control loops of the DFIG-WT are the same as the PMSG-WT [33].…”