1 results about "Differential equation" patented technology

The invention discloses an electricity-gas interconnected energy network model construction method and device. According to the method, the delay characteristic of airflow transmission is considered, the pipeline of the natural gas energy network is segmented according to the airflow parameters of the natural gas energy network, the mass conservation law and the Newton second law are combined, and a pipeline airflow dynamic equation set is established; airflow dynamic characteristics are accurately described by adopting a pipeline airflow dynamic equation set in a space-time partial differential equation form, and then a natural gas energy network model is constructed based on the pipeline airflow dynamic equation set in combination with pipeline transportation constraint conditions of the natural gas energy network. And finally, on the basis of the natural gas energy network model, an electricity-gas interconnected energy network model considering the dynamic characteristics of the gas flow is constructed. The technical problem of low accuracy caused by the fact that the delay characteristics of gas flow transmission are not considered in the prior art is solved.