A kind of microgrid energy management control method

Abstract

The invention discloses a microgrid energy management control method, and relates to the field of power system microgrid optimized control. The method is based on main network power market environment accessed by a microgrid, network constitution of the microgrid and features of energy storage equipment, and an energy management optimized control model of a target microgrid is built. A prediction value of a distributed power supply and the load in the microgrid in a short-term or ultra-short-term energy management control cycle serves as a state variable, a charging state of an energy storage component serves as a decision variable, and solving of energy management optimized control is carried out. Modeling is carried out according to a cost function of each stage, market environment factors accessed by the microgrid are isolated, charging and discharging efficiency of the energy storage equipment and energy storage depreciation and operation cost are fully taken into consideration, and the method has wide adaptability. According to the technical scheme, dynamic economic scheduling is adopted, optimal operation cost under different state situations of each stage can be obtained in the solving process, and analysis, comparison and decision making of operators are facilitated while economical efficiency of microgrid energy management optimized control is improved.

Description

technical field [0001] The invention relates to the field of electric power systems, in particular to an optimal control method for micro-grid energy management including distributed power supply and energy storage. Background technique [0002] With the depletion of petrochemical energy and environmental pollution, new energy has become an important form of power supply in the future. Distributed power sources such as wind energy and photovoltaics are intermittent and uncontrollable. It is of great significance to manage power quality in the form of a micro-grid, control the stability of the power of the tie line, and avoid the impact of distributed power sources on the power grid. The energy management optimization operation of the microgrid system is an important content in the research of microgrid integrated control, and it is also the field involved in the present invention. [0003] For microgrid energy management and operation control, relevant scientific research o...

AI Technical Summary

Problems solved by technology

In addition, the existing algorithms are usually unable to provide detailed information on multiple alternatives at the same time, such as the final result of the operation of the program and the cost to be paid, etc. These are also crucial to the operation of the microgrid when performing human-computer interaction and multi-level considerations. important

Images