Cool-heat-electricity cogeneration microgrid system modeling method

Abstract

The invention relates to a cool-heat-electricity cogeneration microgrid system modeling method. The method is a matrix transfer function method, that is to say, for the multi-input multi-output characteristics of a cool-heat-electricity cogeneration microgrid system, a mathematical model describing the system energy conversion and energy flow relationship is built through the matrix transfer function method. The matrix transfer function method comprises an efficiency matrix describing cool-heat-electricity cogeneration microgrid system components, a dispatch matrix describing system internal energy distribution and a conversion matrix describing energy flow characteristics between the system requirements and energy supply. According to the input-output relationship of each component in the system, the efficiency matrix can be established, and the efficiency matrix represents the energy conversion relationship among the system components; the dispatch matrix can be adopted for establishing the energy flow relationship among the components; finally, the energy flow relationship of the whole system can be described through the conversion matrix. The method is suitable for modeling of various energy systems, simple, efficient and easy to implement and expand.

Description

technical field [0001] The invention belongs to the technical field of microgrid system for combined cooling, heating and power supply, and in particular relates to a modeling method for a microgrid system for combined cooling, heating and power supply. Background technique [0002] According to statistics from the U.S. energy management department, building energy consumption in many countries accounts for about 40% of total energy consumption, and greenhouse gas emissions account for about 30%. Especially in China, with the rapid economic growth, building energy consumption is increasing at a rate of more than 10% per year. Rapidly increasing energy consumption has caused a series of construction-related problems and environmental pollution problems. The development of cooling, heating and power cogeneration microgrid system is one of the effective means to improve energy efficiency, reduce greenhouse gas emissions and solve a series of problems related to building energy...

AI Technical Summary

Problems solved by technology

Traditional modeling methods usually list several situations that may occur in the supply and demand relationship of the energy system in the form of enumeration, and establish a type of mathematical model for each situation. There are many types of mathematical models and lack of standard unified structural forms. Complicates the analysis of such energy systems

Images