Risk assessment method and device for electro-thermal coupled multi-energy flow system

Abstract

The invention discloses a risk assessment method and device for an electro-thermal coupled multi-energy flow system, and the method comprises the steps: establishing a stochastic model of the operation of the electro-thermal coupled multi-energy flow system, generating sn stochastic scenes of the electro-thermal coupled multi-energy flow system according to the stochastic model, and simultaneouslyestablishing constraint conditions and a cost function of the electro-thermal coupled multi-energy flow system, taking the cost function as a target function, wherein the constraint conditions include a heat network flow constraint condition, so that the coupling relation between the active power of the heat network and the active power of the grid can be established. Therefore, the minimum valueof the target function of the electro-thermal coupled multi-energy flow system under the sn stochastic scenes can be calculated through the electro-thermal coupling constraint condition of the electro-thermal coupled multi-energy flow system, and the risk value of the electro-thermal coupled multi-energy flow system is determined according to the minimum value of the target function correspondingto the sn stochastic scenes, thereby enabling the solved risk value of the electro-thermal coupled multi-energy flow system to be more accurate.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of risk assessment of multi-energy flow systems, and in particular, to a risk assessment method, device and storage medium of an electric-thermal coupled multi-energy flow system. Background technique [0002] The multi-energy flow system covers various energy flow subsystems such as electricity, heat, cold, and air. Each subsystem is converted and coupled together through cooling, heating and power cogeneration, heat pumps and other equipment. The rise of the Energy Internet in recent years has made the multi-energy network that transmits energy in various forms of electricity, heat, cold, and air show its superiority. However, the multi-energy coupling also leads to the interaction of uncertain factors in each subsystem, which affects the normal energy consumption of users and even affects the overall safety of the multi-energy flow system. [0003] In the prior art, these uncertain ...

AI Technical Summary

Problems solved by technology

However, the factors considered in the risk assessment in the prior art generally have a very long time scale, so it is impossible to accurately assess the risk of the operation of the multi-energy flow system in a timely and accurate manner.

Images