A hydrogen production and conversion plant from wind power was installed in the Sotavento wind farm by Gas Natural and the Galician Government. This facility is the highest electrolysis power installed at the European...A hydrogen production and conversion plant from wind power was installed in the Sotavento wind farm by Gas Natural and the Galician Government. This facility is the highest electrolysis power installed at the European level. It consists of an electrolyser of 300 kW, a piston compressor, a 1,725 Nm3 H2 storage system and an engine of 55 kW. This pilot plant is being operated by Natural Gas in order to extrapolate its behavior to that of an industrial facility capable of managing all the production of Sotavento wind farm following different strategies： balancing, peak-shaving and repowering. In this paper, preliminary results at the facility are presented. The aim of these first tests has been to describe the operation of equipment under operating conditions required in the management of wind power production, in order to understand the behavior of the different equipment and try to make them suitable for this type of applications. This paper shows the difficulty of operating these systems under the wind power requirements.展开更多
The general idea of this work is to improve the performance of CAES （compressed air energy storage） for its application in solar and wind systems through a restitution technique by creating an artificial wind. The e...The general idea of this work is to improve the performance of CAES （compressed air energy storage） for its application in solar and wind systems through a restitution technique by creating an artificial wind. The efficiency of compressed air storage is often presented as a limit to its application. The present work describes a series of manipulations carried out in order to increase the yield. As the action of the artificial wind on the wind turbine is characterized by a reduced attack surface, a treated wind, a constant direction, an adjustable speed, it is therefore a question of acting on all the controllable parameters of the artificial wind to find the best way to use it to produce more energy from a certain quantity stored in a tank. The main manipulations consisted in determining： the optimal number of points of attack of the wind turbine; the nature of the action （continuous or interrupted） of the wind; the frequency of wind action and the duty cycle.展开更多
In general, the energy storage in facilities to intermittent sources is provided by a battery of accumulators. Having found that the duration of life of chemical accumulators is strongly shortened in the northern regi...In general, the energy storage in facilities to intermittent sources is provided by a battery of accumulators. Having found that the duration of life of chemical accumulators is strongly shortened in the northern regions of Cameroon and that this has a considerable impact on the operating costs and the reliability of power plants to intermittent sources, this work proposes to find an alternative to these chemical accumulators rendered vulnerable by the high temperatures. It reviews all energy storage techniques and makes a choice （the CAES （compressed air energy storage）） based on thermal robustness. It proposes a new technique of restitution of the energy by producing an artificial wind from the compressed air. The feedback loop thus obtained by the compressor-tank-wind subsystem is studied from a series of manipulations and its efficiency is determined. To automate the operation of this system, a controller is required. The operating logic of the controller is provided in function of the precise states of the load, the tank and the natural sources.展开更多
文摘A hydrogen production and conversion plant from wind power was installed in the Sotavento wind farm by Gas Natural and the Galician Government. This facility is the highest electrolysis power installed at the European level. It consists of an electrolyser of 300 kW, a piston compressor, a 1,725 Nm3 H2 storage system and an engine of 55 kW. This pilot plant is being operated by Natural Gas in order to extrapolate its behavior to that of an industrial facility capable of managing all the production of Sotavento wind farm following different strategies： balancing, peak-shaving and repowering. In this paper, preliminary results at the facility are presented. The aim of these first tests has been to describe the operation of equipment under operating conditions required in the management of wind power production, in order to understand the behavior of the different equipment and try to make them suitable for this type of applications. This paper shows the difficulty of operating these systems under the wind power requirements.
文摘The general idea of this work is to improve the performance of CAES （compressed air energy storage） for its application in solar and wind systems through a restitution technique by creating an artificial wind. The efficiency of compressed air storage is often presented as a limit to its application. The present work describes a series of manipulations carried out in order to increase the yield. As the action of the artificial wind on the wind turbine is characterized by a reduced attack surface, a treated wind, a constant direction, an adjustable speed, it is therefore a question of acting on all the controllable parameters of the artificial wind to find the best way to use it to produce more energy from a certain quantity stored in a tank. The main manipulations consisted in determining： the optimal number of points of attack of the wind turbine; the nature of the action （continuous or interrupted） of the wind; the frequency of wind action and the duty cycle.
文摘In general, the energy storage in facilities to intermittent sources is provided by a battery of accumulators. Having found that the duration of life of chemical accumulators is strongly shortened in the northern regions of Cameroon and that this has a considerable impact on the operating costs and the reliability of power plants to intermittent sources, this work proposes to find an alternative to these chemical accumulators rendered vulnerable by the high temperatures. It reviews all energy storage techniques and makes a choice （the CAES （compressed air energy storage）） based on thermal robustness. It proposes a new technique of restitution of the energy by producing an artificial wind from the compressed air. The feedback loop thus obtained by the compressor-tank-wind subsystem is studied from a series of manipulations and its efficiency is determined. To automate the operation of this system, a controller is required. The operating logic of the controller is provided in function of the precise states of the load, the tank and the natural sources.
