Micro-grid energy optimization management method

Abstract

The invention relates to a micro-grid energy optimization management method. As a micro-grid energy flow supply-demand error mathematical model is taken as the basis, in the method, controllable power supply of a micro turbine, the charging-discharging capacity and the charging-discharging time of stored energy, dispatching of using time and used electric capacity of users and the like are taken as manipulated variables and the time-sharing and layering-based hierarchical prediction control optimization algorithm is adopted for optimizing the working statuses of all energy modules in consideration of constraint conditions such as energy conservation in the practical micro-grid operation, and the electric restriction of physical equipment, so that the bi-directional disturbance caused by new energy and user loads can be improved, the requirements of the user loads on the electric energy can be met, and the reliability, the safety and the economical efficiency for micro-grid operation can be ensured; the method is suitable for energy optimization management in a practical power grid.

Description

technical field [0001] The invention relates to an energy optimization management method, in particular to an energy optimization management method for a power system with multiple users and hybrid dynamic logic characteristics. Background technique [0002] As an important part of the smart grid, the microgrid is of great significance to the promotion of new energy, energy saving and consumption reduction in the process of power production, and reduction of carbon emissions. The main purpose of microgrid energy management is to provide demand-quality electric energy to user loads in real time and accurately at the minimum operating cost under the constraints of technical conditions and physical equipment, not only to ensure short-term energy supply and demand balance, but also to achieve long-term energy balance. Optimal scheduling of energy and economical operation of power grids. However, due to the intermittency of new energy power supply, the complexity of system struc...

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Problems solved by technology

However, most of the current research work only considers the disturbance problem caused by the random disturbance of new energy or the supply and demand error of the user end, while the research on energy management that considers the direction disturbance caused by the randomness of new energy and user dynamics at the same time is relatively small.

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