Evolution Analysis And Application Of The Dynamic System Based On Energy Prices-energy Efficiencyeconomic Growth In China

There is a complicated relationship among energy prices,energy efficiency and economic growth.Their unbalanced development can destroy the stability of energy market,but the stability of the energy market is conducive to the rapid development of economy and society.Therefore,the research on the factors which affect stability of the energy market has theoretical value and practical significance.In this paper,a three-dimension nonlinear dynamic system model has been established,which involves energy price,energy efficiency and economic growth based on nonlinear dynamics theory.This paper studies from the following aspects:(1)Establishment of the model.Based on the actual situation of domestic energy market,the network structure is constructed.According to the causal relationship of the interdependence and mutual restraint in an economic period,a new nonlinear dynamic model is established by means of nonlinear dynamics theory.(2)Theoretical analysis.The stability of the equilibrium points and dissipation of the system are analyzed by the theory of nonlinear dynamics.The effects that parameter variation has on the motion state of the model are studied by means of numerical simulation.The influence of parameter variation to the motion state of the model is studied by means of numerical simulation.This paper discusses the condition of the stability of the equilibrium point in the subsystem of energy efficiency and economic growth.This shows that the control strategy is effective when the condition is satisfied.Then the evolutionary relationship of the other subsystem is analyzed.(3)Empirical analysis.The statistical data is standardized and the parameters of the model are determined by the method of BP neural network,a practical model involved energy price,energy efficiency and economic growth is obtained.This model reflects the actual situation of the domestic energy market.According to the actual evolutionary state,we analyze the influence of control strategy on the parameters of the model,and find that the 4 strategies can make the unstable energy market stable.The influence of single control strategy and compositional control strategy on the variables is analyzed and contrasted in the model.This shows the combination strategies have a better effect on the energy market and the appropriate combination strategy should be chosen according to the specific situation.