An optimized operation management method for electric thermal storage boilers based on double-layer optimization of microgrid

Abstract

The present invention innovatively proposes an optimized operation management method for electric thermal storage boilers based on a microgrid based on double-layer optimization. First, a photovoltaic output forecast model, a wind power output forecast model, a micro gas turbine model, a diesel engine model, and a battery model were constructed. In order to improve the accuracy of the heat load demand forecast model, a method based on improved similar days was proposed to build the heat load demand model; then, In order to reduce the amount of abandoned wind and light in the system at the lowest comprehensive cost, a two-layer optimization model was established, in which the energy management system was introduced in the lower layer and the centralized energy management system was introduced in the upper layer. Finally, the objective function was optimized through the adaptive quantum chaos genetic algorithm. By solving the problem, the output of each unit in the microgrid system can be accurately obtained, and high economic benefits and high renewable energy utilization can be achieved while meeting the needs of the electrical load and heat load in the system. The energy dispatch value of each unit of the system can be calculated scientifically.

Description

technical field [0001] The present invention relates to a micro-grid system including an electric thermal storage boiler and intermittent renewable energy, which maximizes the utilization rate of renewable energy while ensuring the lowest overall cost. A micro-grid optimization operation management method based on double-layer optimization Optimal operation management method for electric thermal storage boiler in microgrid. Background technique [0002] The domestic and foreign research results and operation experience all show that the research on the optimal operation and management of the microgrid system has very important engineering significance. Under the circumstances of excessive consumption of traditional fossil energy and increasingly serious environmental problems, renewable new clean energy is becoming the key development direction of the global energy structure. Distributed power generation uses clean energy, which has less pollution and high utilization rate. ...

AI Technical Summary

Problems solved by technology

[0003] At present, there are few studies on the optimal operation of microgrids including electric heat storage boilers, and no scientific and complete strategy has been formed to optimize the output of each unit in the system and the storage of electric energy, which leads to weak practicality of model engineering and is not feasible. It is conducive to the promotion and application of electric heat storage boilers, and the optimization algorithm has the defects of long running time and easy to fall into local optimum

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