Regional energy internet scheduling method based on random planning and model predictive control

Abstract

The invention discloses a regional energy internet scheduling method based on random planning and model predictive control. The method comprises the steps of (1) analyzing the operation characteristics of all units and interconnection lines in a regional energy internet, and constructing a mathematical model of each unit; (2) analyzing the output of the wind and light renewable energy and the uncertainty of cold, heat and electric loads, and generating prediction scene data which are required for the operation of the optimization scheduling by adopting the scene generation and reduction technology; (3) establishing a day-ahead scheduling random planning model with the lowest total operating cost of the system as a target, and determining the on-off state of each unit; (4) establishing an intra-day scheduling random planning model with the lowest total operating cost of the system as a target, and determining the running power in each unit within a day; (5) establishing an intra-day real-time rolling correction model by adopting the model predictive control technology, and correcting the operation plan of each unit. According to the invention, the accurate tracking of loads and thesmooth unit output are achieved. The high dynamic performance and the strong robustness are also realized.

Description

technical field [0001] The invention relates to the field of multi-energy coordination and optimization operation scheduling of regional energy Internet systems, and in particular to an energy Internet scheduling method based on multi-scenario random planning and model predictive control. Background technique [0002] In recent years, energy issues and environmental issues have become increasingly prominent, and the development and utilization of clean energy has become an inevitable trend in the development of the energy field. Electricity is the most important secondary energy, relying on the power grid, it is imperative to build a comprehensive energy supply system centered on wind, light, gas and other energy sources. The Regional Energy Internet coordinates and manages various resources such as local renewable energy, distributed power, energy storage, combined cooling, heating and power, and effectively solves the monitoring and scheduling difficulties arising from the...

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Problems solved by technology

[0008] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the traditional energy system operation control is difficult to plan for the uncertainty of wind, light and other renewable energy sources, and the unit output control has large disturbances, resulting in resource loss. Waste and increased operating costs

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