Adaptive variable-step integration method for global energy Internet operating characteristic simulation

Abstract

The invention discloses an adaptive variable-step integration method for global energy Internet operating characteristic simulation. According to the method, influence factors of energy, politics and economy are extracted, rate variables and state variables are determined according to the causality between all the influence factors, a macroscopic operating characteristic causal graph of global energy Internet is established, historical data of the influence factors of different types is subjected to standardization processing, all the variables are selected in sequence, all variable sets pointing to the variables is searched for, an algebraic equation between the variables is determined according to the historical data, construction of a mathematical formula between system variables of the global energy Internet is completed, the equation is subjected to differencing processing, an improved Euler method is adopted to perform iteration before an emergency happens, a fourth-order Ronge-Kutta method is adopted to perform iteration after the emergency happens, simulation prediction is performed with an adaptive step, and macroscopic operating characteristics of the global energy Internet are predicted and deduced.

Description

technical field [0001] The invention relates to the field of global energy internet macroscopic operation characteristics, in particular to an adaptive variable step-length integration method for simulation of global energy Internet operation characteristics. Background technique [0002] Energy and environmental issues are major challenges facing the world today. Long-term over-exploitation has led to the depletion of traditional fossil energy sources, frequent occurrence of energy geopolitical events has triggered continuous regional wars, and excessive carbon emissions have intensified the trend of climate warming. Large-scale development and utilization of clean, low-carbon energy and the transformation of energy consumption to low-carbon are important foundations for the sustainable development of mankind. It has become the consensus of the international community to establish a global energy concept, build a global energy internet, coordinate the development, allocati...

AI Technical Summary

Problems solved by technology

Existing mathematical models often only consider one or some of the subsystems, and cannot simulate the international political system-economic system-energy system under a unified framework; in addition, existing numerical integration methods cannot simulate second-level and annual-level time In the case of coexistence of constants, in order to be able to simulate second-level data changes, it is necessary to reduce the iteration step size, which greatly increases the calculation time

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