Real-time simulation model and device for power grid and heat supply network combination in energy internet

Abstract

The invention discloses a real-time simulation model and a real-time simulation device for power grid and heat supply network combination in an energy internet. The real-time simulation device comprises a fixing plate and a box body, wherein both sides of the bottom part of the fixing plate are fixedly connected with supporting legs, the top part of the fixing plate is fixedly connected with an upper computer, the top part of the upper computer is fixedly connected with a display, and the upper computer establishes a heat supply network and power grid coupled simulation model based on a simulink graphical environment. The real-time simulation model and the real-time simulation device are used for constructing a real-time simulation platform for combined operation and control of a heat supply network and a power grid in an integrated energy system, the power grid and heat supply network models are established by adopting the simulink in the upper computer, the power grid and heat supply network models are compiled and downloaded to two target machines for operation, the upper computer is connected with the two target machines with different step lengths by means of an Ethernet switch, and the two target machines (simulators) exchange real-time simulation variables so as to simulate the coupling effect between the power grid and the heat supply network.

Description

technical field [0001] The invention relates to the technical field of energy Internet and integrated energy systems, and specifically relates to a real-time simulation model and device of a power grid combined with a heating network in the energy Internet. Background technique [0002] Wind energy and solar energy are widely distributed and inexhaustible energy sources. my country is rich in wind energy resources and the monsoon prevails. Most of the wind power in my country today is still used for grid connection, but this will cause a decline in the power quality of the grid and pose a greater challenge to users' electricity consumption. Most areas in my country still use fossil energy for heating. Fossil energy is primary energy and is non-renewable. After it is used up, it will emit greenhouse gases into the air, pollute the environment, and electric energy is not easy to store, which leads to a very low utilization rate of wind energy. [0003] When the user's residen...

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Problems solved by technology

[0004] In the joint real-time simulation of thermal power network and power grid, it is difficult to determine the appropriate step size due to the slow dynamics of the thermal power grid and the fast dynamics of the power grid; at the same time, thermal power and electric power belong to different disciplines, and currently there is no effective tool to complete the simulation. Joint real-time simulation of heating network and power grid

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