Economic improvement method of comprehensive energy system considering the utilization of oxygen-rich gas
An integrated energy system and oxygen-enriched gas technology, applied in the field of power system, can solve the problems of waste of wind power, lack of controllability of wind turbines, inflexible adjustment mode of cogeneration units, etc., and achieve the effect of improving economic benefits
Active Publication Date: 2022-06-07
SOUTHEAST UNIV
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Problems solved by technology
[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 the combined heat and power unit is inflexible, and the wind turbine unit lacks controllability, resulting in a large amount of wind power being wasted
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[0093] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.
[0094] Since the cogeneration unit is inflexible, it must generate electricity while supplying heat. During the winter, the CHP unit is usually kept working to meet the heat demand and producing electricity all the time. Especially in the period of low electricity consumption, the cogeneration unit will also generate a large amount of electricity, which leads to the phenomenon of wind curtailment. The traditional comprehensive energy system of the present invention uses electricity-to-hydrogen conversion systems, electric boilers, electricity storage devices and other equipment to improve the flexibility of the system. During the period of low electricity consumption, wind power can...
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The invention discloses a method for improving the economy of a comprehensive energy system considering the utilization of oxygen-enriched gas, comprising the following steps: Step 1, analyzing the impurity components of the oxygen-enriched gas, and selecting an appropriate purification method; The boiler, power storage device, and cogeneration unit are integrated into a comprehensive energy system and modeled separately; among them, the power-to-hydrogen equipment includes an electrolyzer and a hydrogen storage tank, and the purification method selected in step 1 is adopted; in step 3, for the established model, Design the objective function and constraints, and optimize. This method combines the purification of oxygen-rich gas with the integrated energy system and comprehensively dispatches it, which can greatly improve the economy of the integrated energy system.
Description
technical field [0001] The invention belongs to the technical field of electric power systems, and particularly relates to a method for improving the economy of a comprehensive energy system containing electricity to hydrogen. Background technique [0002] In the areas where thermal power and wind power coexist, due to the existence of the rule of heat and electricity, the adjustment method of cogeneration units is inflexible, and the wind turbines lack controllability, resulting in a large amount of wind power being wasted. Therefore, electric boilers, electricity storage devices, and electricity to hydrogen can be used to increase the flexibility of cogeneration units. Among them, electricity-to-hydrogen conversion can not only improve the flexibility of cogeneration units, but also meet the increasing hydrogen demand of hydrogen fuel cell vehicles, playing an increasingly important role in today's comprehensive energy system. [0003] Electricity to hydrogen is often car...
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IPC IPC(8): H02J3/28H02J3/38C25B1/04
CPCH02J3/28C25B1/04Y02E70/30
Inventor 丁昊晖丁一原葛毅胡秦然
Owner SOUTHEAST UNIV