Micro-grid economic and optimal operation and scheduling method based on improved quantum genetic algorithm

Abstract

The invention relates to a micro-grid economic and optimal operation and scheduling method based on an improved quantum genetic algorithm. The micro-grid is in a grid-connected mode operation state and comprises multiple micro sources and loads, wherein the loads comprise electric loads and thermal loads; and the micro sources comprise a micro turbine, a wind turbine, a photovoltaic cell, a fuel cell, a storage battery and an electric vehicle. The method comprises the following steps: S1, state information of each load and each micro source in the micro-grid is acquired; S2, with minimum of operation cost and pollutant treatment cost as a target, a multi-target economic scheduling model is built; S3, the improved quantum genetic algorithm is adopted for carrying out optimal solution on the multi-target economic scheduling model, and the optimal active power of each micro source is acquired; and S4, according to the optimal active power of each micro source, active power output by each micro source is controlled. Compared with the prior art, the micro-grid formed by distributed power sources operates in a more economic, flexible and environment-friendly mode, and power generation advantages of the distributed power sources can be taken.

Description

technical field [0001] The invention relates to the field of micro-grids, in particular to a micro-grid economic optimization operation scheduling method based on an improved quantum genetic algorithm. Background technique [0002] Micro-grid, also translated as micro-grid, is a new type of network structure, which is a system unit composed of a group of micro-power sources, loads, energy storage systems and control devices. Microgrid is an autonomous system capable of self-control, protection and management, which can be connected to the external grid or run in isolation. Microgrid is a concept relative to the traditional large power grid. It refers to a network composed of multiple distributed power sources and their related loads according to a certain topology, and is connected to the conventional power grid through static switches. [0003] The development and extension of microgrids can fully promote the large-scale access of distributed power sources and renewable en...

AI Technical Summary

Problems solved by technology

However, with the continuous expansion of the grid scale, the disadvantages of ultra-large-scale power systems are becoming more and more prominent, such as high cost, difficult operation, and difficulty in adapting to the increasingly high safety and reliability requirements of users and the diversified power supply needs.

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