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Comprehensive energy system optimization dispatching method considering various flexible loads

A technology that integrates energy systems and optimizes scheduling, and is applied in the direction of single-grid parallel feeding arrangements, etc.

Inactive Publication Date: 2019-06-07
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Abstract
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  • Application Information

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Problems solved by technology

However, considering the differences in the characteristics of various distributed power sources, coupled with the intermittence and volatility of renewable energy such as sunlight and wind, a large number of distributed power sources connected to the traditional power grid are important for scheduling, stability, control and protection. many challenges

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  • Comprehensive energy system optimization dispatching method considering various flexible loads
  • Comprehensive energy system optimization dispatching method considering various flexible loads
  • Comprehensive energy system optimization dispatching method considering various flexible loads

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0058] figure 1 Shown is a schematic diagram of an integrated energy system considering various flexible loads in the main application embodiment of the present invention. The system includes renewable energy power generation devices: wind power, photovoltaics, combined heat and power systems, electric energy storage, thermal energy storage, gas boilers and other equipment. The energy input of the system is grid electric energy, distributed power output an...

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Abstract

The invention relates to a comprehensive energy system optimization dispatching method considering various flexible loads. The comprehensive energy system optimization dispatching method comprises thefollowing steps of 1) building a comprehensive energy system mathematical model comprising a gas turbine power generation system capable of moving, rotating, reducing a load model and storing energyaccording to an excitation compensation mechanism by combining power utilization and dispatching characteristic of each flexible load in the comprehensive energy system; and 2) building supply-demandcombination daily optimization dispatching model, taking total running cost as minimum according to the comprehensive energy system of which power, heat and load can participate in interaction, leading the model into an automatic computer system, solving output of each equipment of the comprehensive energy system by the automatic computer system, and controlling each equipment according to outputto obtain an optimization running result. Compared with the prior art, the comprehensive energy system optimization dispatching method has the advantages that the running cost of the system can be obviously reduced, the difference between peak and valley of the load is reduced, and the peak power utilization pressure is reduced.

Description

technical field [0001] The invention relates to the technical field of power system automation, in particular to an optimal scheduling method for an integrated energy system considering multiple flexible loads. Background technique [0002] Electricity systems are currently under threat from issues such as the fossil fuel energy crisis, increased environmental pollution, and cascading failures of large-scale interconnected grids. All these threats have also led to the revolutionary development of distributed power generation technologies (such as distributed wind power generation, distributed photovoltaic power generation, small diesel generator sets, fuel cells and micro gas turbines, etc.). Distributed generators (Distributed Generators, DG) are usually small in scale, and provide flexible and environmentally friendly power supply to regional loads nearby, realizing the nearby production and digestion of electric energy. However, considering the differences in the charact...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
Inventor 时珊珊方陈王皓靖李子林刘蓉晖杨秀李阳
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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