Intra-day rolling collaborative optimization operation method and device for a regional multi-energy supply system

Abstract

The invention provides an intra-day rolling collaborative optimization operation method and device for a regional multi-energy supply system, and the method comprises the following steps: S1, analyzing the structure of the regional multi-energy supply system, extracting the operation characteristics and energy flow characteristics of equipment in the multi-energy supply system, and building systemequipment and a system mathematical model on the basis; S2, based on system mathematical modeling and current energy price information, constructing an objective function of day-ahead cooperative optimization operation, and combining constraint conditions of day-ahead optimization to obtain a day-ahead cooperative optimization operation scheme of the regional multi-energy supply system; S3, on the basis of a unit start-stop scheme, nearest load prediction data and renewable energy power generation prediction output in the day-ahead cooperative optimization operation scheme, obtaining an intraday rolling optimization operation scheme; And S4, on the basis of the intraday rolling operation scheme, a real-time operation scheme of the regional multi-energy supply system is obtained. Accordingto the scheme provided by the invention, the influence of prediction errors and fluctuation of the generated energy can be eliminated, and safe and stable operation of the system is ensured.

Description

technical field [0001] The invention relates to the technical field of optimized operation of multi-energy supply systems, in particular to a method for intra-day rolling cooperative optimal operation of multi-energy systems. Background technique [0002] With the development of advanced science, people's demand for energy is increasing. At the same time, traditional fossil energy is becoming increasingly exhausted, and issues such as energy security and environmental protection have attracted much attention. However, the existing energy conversion efficiency of cold, heat, and electricity is low. , non-centralized distribution, and high cost of use are common, making energy and the environment the main bottleneck restricting the sustainable development of the national economy. [0003] At the same time, with the increasing consumption of non-renewable traditional fossil energy such as coal, oil, and natural gas, in addition to causing greenhouse effects and environmental pr...

AI Technical Summary

Problems solved by technology

The introduction of wind power and solar power into the regional system will greatly increase the unpredictability of the regional multi-energy supply system. One solution is to convert renewable energy into thermal energy and cold energy that are physically easy to store; another One solution is to reduce the unpredictability of energy production and use in the system. However, due to the limitations of existing technical methods, the existing coordinated scheduling method for regional multi-energy supply systems has too long prediction time, resulting in insufficient prediction accuracy. The safety, reliability and economy of the energy supply of the multi-energy supply system are relatively poor

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