Method for determining design reference day of industrial park cooling-heating-power terminal energy supply system

Abstract

The invention discloses a method for determining a design reference day of an industrial park cooling-heating-power terminal energy supply system. The method comprises the following steps of: S1, determining the annual hourly load requirements of all terminal loads of the industrial park; S2, dividing the whole year into L large intervals according to the distribution of daily electric load peak values of the whole year; S3, dividing each large interval into one or more than two middle intervals according to the terminal load composition and proportion of the daily cold and heat accumulated load peak value; S4, dividing each middle interval into one or more than two sub-intervals according to the size of the daily cold and heat accumulated load peak value; S5, respectively selecting design reference days in each small interval; and S6, taking the peak load day of each terminal load into a research object, and counting the design reference day and the weight thereof. The method provided by the invention provides a design working condition more fitting the annual terminal load law for the installed capacity planning of the industrial park cooling-heating-power terminal energy supply system, thereby solving the problem that the system runs or stops in a low-load rate state for a long time all year around.

Description

technical field [0001] The invention belongs to the design field of regional energy supply systems, and in particular relates to a method for determining a design reference date of an energy supply system for cooling, heating and power terminals in an industrial park. Background technique [0002] With the rapid development of industrialization and urbanization in my country, industrial parks for the purpose of integrating and optimizing resources are vigorously promoted, and their terminal loads are diverse and complex and consume a lot of energy, which brings great challenges to the design of regional energy supply systems. At present, the regional energy supply systems in many places in my country operate or shut down at a low load rate for a long time throughout the year, or the system cannot meet the peak load demand, and its operation effect deviates from the design value, economy, energy saving and environmental protection and other indicators Both performed poorly, an...

AI Technical Summary

Problems solved by technology

The typical day method only divides the seasons according to the climate temperature, without fully considering the daily fluctuation of the terminal load. It simply compresses the 8,760 hours of the year into 72 hours or 48 hours. The installed capacity of the units determined according to the typical day fails to achieve full load Yearly hourly load matching, which is obviously not applicable to the design of the energy supply system of the industrial park

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