Multi-target operation scheduling method for micro-grid with electric vehicle hybrid energy storage system

Abstract

The invention relates to a multi-target operation scheduling method for a micro-grid with an electric vehicle hybrid energy storage system. The micro-grid runs in a grid-connection mode and comprises a plurality of micro-sources and loads, wherein the loads include an electric load and a heat load; and the micro-sources include a micro-gas turbine, a fan, a photovoltaic cell, a fuel cell, a storage battery and an electric vehicle. The method comprises the following steps of S1: obtaining state information of each load and each micro-source in the micro-grid; S2: establishing a multi-target economic scheduling model with minimum running and pollutant control costs; S3: performing optimization solving on the multi-target economic scheduling model by adopting an NSGA-II multi-target optimization algorithm to obtain optimal active power of each micro-source; and S4: according to the optimal active power of each micro-source, controlling active power output of each micro-source. Compared with the prior art, the method has the advantages that the micro-grid consisting of a distributed power supply can run more economically, flexibly and environmentally, and the power generation advantage of the distributed power supply can be brought into full play.

Description

technical field [0001] The invention relates to the field of microgrids, in particular to a multi-objective operation scheduling method for a microgrid including a hybrid energy storage system for electric vehicles. 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 an...

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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