Method for improving operational flexibility of energy systems based on electricity-to-hydrogen conversion
An energy system and hydrogen system technology, which is applied in the field of improving the operational flexibility of an energy system based on electricity-to-hydrogen conversion, can solve the problems that the comprehensive influence of the heat source and the electricity-to-hydrogen system has not been thoroughly analyzed, and the operating characteristics have not been thoroughly studied, so as to increase flexibility. Sexuality, the effect of reducing wind abandonment
Active Publication Date: 2021-05-25
NANJING HUADUN ELECTRIC POWER INFORMATION SAFETY EVALUATION CO LTD
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[0004] Although these devices will increase the flexibility of integrated energy systems, the operational characteristics of integrated energy systems containing electricity, heat, and hydrogen have not been thoroughly studied, and the combined impact of adding heat sources and power-to-hydrogen systems has not been analyzed in depth
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[0095] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0096] Since CHP units are inflexible, they must generate electricity while supplying heat. During the winter, the combined heat and power unit typically runs all the time to meet the heat demand and to generate electricity all the time. Especially in the period of low power consumption, the combined heat and power unit will also generate a large amount of electric energy, which leads to the phenomenon of wind curtailment. The present invention designs an integrated energy system based on electricity-to-hydrogen, adding an electricity-to-hydrogen system, an electric boiler, and a combined heat and power unit for electricity storage into the integrated energy system. These devices increase the ...
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The invention discloses a method for improving the operational flexibility of an energy system based on power-to-hydrogen conversion, comprising the following steps: analyzing the operation of the power-to-hydrogen system including an electrolyzer and a hydrogen storage tank, deriving a mathematical model of the power-to-hydrogen system; obtaining cogeneration of heat and power Unit model, combined with the mathematical model of the power-to-hydrogen system, the electric boiler model, the power storage device model and the combined heat and power unit model, a comprehensive system model of electricity, heat and hydrogen is obtained; according to the system model of comprehensive electricity, heat and hydrogen, Find the best scheduling scheme to maximize the economic effect and improve the operational flexibility of the energy system. The invention comprehensively dispatches the electrolyzer, the hydrogen storage tank, the electric boiler and the electric storage device to greatly increase the flexibility of the cogeneration unit, thereby reducing the abandoned wind.
Description
technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a method for improving the operational flexibility of an energy system based on electricity-to-hydrogen conversion. Background technique [0002] In the area where thermal power and wind power coexist, due to the existence of the rule of determining power by heat, the adjustment method of combined heat and power units is inflexible, and the wind turbines lack controllability, resulting in the reduction of large wind farms. Therefore, finding an effective way to enhance the operational flexibility of CHP units will have a positive impact on the utilization of wind power. [0003] The routinely used method now is to use heat storage tanks, electric boilers and heat pumps to increase the flexibility of combined heat and power units, which is a feasible solution to reduce wind energy loss. The solution of power-to-hydrogen conversion can also be adopted, and a heat...
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IPC IPC(8): G16C20/10G06F30/20
CPCG16C20/10
Inventor 李鹏丁昊晖郝浩胡秦然
Owner NANJING HUADUN ELECTRIC POWER INFORMATION SAFETY EVALUATION CO LTD