Optimal sizing of wind-hydrogen system considering hydrogen demand and trading modes |
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| Affiliation: | 1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300072, China;2. School of Civil Engineering, Tianjin University, Tianjin, 300072, China;3. Huanghe Hydropower Development Co., Ltd., Xining, 810008, China;1. FEMTO-ST, Univ. Bourgogne Franche-Comte, France;2. University Felix Houphouët Boigny of Abidjan-Cocody, Ivory Coast, West Africa;3. Clean Horizon Consulting, Paris, France;4. Univ. Bourgogne Franche Comté, FEMTO-ST, FCLAB, CNRS, France;1. Department of Electromechanical, Systems and Metal Engineering, Ghent University, Ghent, Belgium;2. FlandersMake@UGent.be - Corelab EEDT-DC, Belgium;3. FlandersMake@UGent.be - Corelab EEDT-MP, Belgium;1. Hydrogen South Africa (HySA) Infrastructure Centre of Competence, Faculty of Engineering, North-West University, 11 Hoffman Street, Potchefstroom, 2531, South Africa;2. Unit for Energy and Technology Systems, Faculty of Engineering, North-West University, 11 Hoffman Street, Potchefstroom, 2531, South Africa;3. School of Electrical, Electronic and Computer Engineering, Faculty of Engineering, North-West University, 11 Hoffman Street, Potchefstroom, 2531, South Africa |
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| Abstract: | In order to make full use of renewable energy and improve the utilization of wind power, a new joint optimization scheme of the wind-hydrogen system coupled with transmission project is proposed in this paper, in which wind power is reasonably allocated for grid integration and for hydrogen production. Aiming at maximize the annul wind-hydrogen system benefit, the optimal sizes of wind power transmission project and hydrogen system are obtained under different hydrogen production modes, hydrogen trading modes and hydrogen demand levels. In addition, the penalty cost of wind curtailment and hydrogen supply shortage and the system environmental benefits are taken into account. Results show: during the long-term of insufficient of wind power, it is better to produce hydrogen using wind power and grid-assisted power to avoid hydrogen supply shortage; considering the future increase of hydrogen demand, the optimal supply number of hydrogen refueling stations in the wind-hydrogen system is two. Also, the low utilization of fuel cells means that the benefit from regeneration cannot offset the high cost, which leads to the abnegation of fuel cells in the wind-hydrogen system. |
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| Keywords: | Hydrogen storage system Transmission project Hydrogen demand level Hydrogen trading modes |
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