Multi-loop control system and method for integrated energy system

Abstract

The invention provides a multi-loop control system and method for an integrated energy system. The multi-loop control system comprises an inner loop unit, a middle loop unit and an outer loop unit. The inner ring unit is an electric energy tracking control ring, the middle ring unit is a cold energy and heat energy tracking control ring, and the outer ring unit is a fuel gas tracking control ring; and the inner ring unit, the middle ring unit and the outer ring unit are configured to regulate and control complementation and conversion among various energy sources based on optimization time scale differences and coupling relationships among different energy source forms so that coordinated optimization and scheduling of mutually coupled cold, heat, electricity and gas in a dynamic process are realized. According to the invention, when cold, heat, electricity, gas connection and energy supply are considered, an electric energy change is fast, transmission is fast, a cold and heat change is slow, transmission is slow, and the gas transmission amount and consumption are based on the usage amount of energy in other forms, electricity, cold and heat and gas are controlled in a ring-divided mode, and the optimization time scale difference and the coupling relation between different energy forms are considered; and the usage amounts of different energy sources at the same moment are coordinated and optimized.

Description

technical field [0001] The disclosure belongs to the technical field of integrated energy systems, and in particular relates to a multi-loop control system and method for an integrated energy system. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] The integrated energy system is an energy supply system that coordinates the operation of multiple energy sources. It can uniformly regulate different forms of energy such as cold, heat, electricity, and gas, and realize the complementary use of multiple energy sources. Ensuring the stable, high-quality, and efficient energy output of the integrated energy system is an effective way to improve energy utilization and solve current energy shortages and environmental crises. [0004] However, due to the complex energy flow inside the integrated energy system, different forms of energy are coupled ...

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Problems solved by technology

[0006] The search found that currently, for multiple energy sources with complex changes and tight coupling during the operation of the multi-energy flow integrated energy system, the optimal dispatching strategy under the traditional control system does not deeply consider the optimal dispatching time scale of various forms of energy. It is difficult to achieve optimal control of cold, heat, electricity, gas and other forms of energy with large differences in optimization time scales at the same time

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