Economic scheduling optimization method for independent microgrid based on dual-master dynamic cooperation

Abstract

The invention relates to an economic dispatch optimization method of an independent microgrid on the basis of dual master control dynamic cooperation. The independent microgrid comprises two types of master power of a battery energy storage system and a diesel generating set, and two types of non-master power of a wind generating set and a photovoltaic power generation system; the method comprises 1) an economic dispatch optimization strategy of a system when the battery energy storage system is adopted as the master power of the independent microgird; 2) the economic dispatch optimization strategy of the system when the diesel generating set is adopted as the master power of the indepentdent microgird; 3) an economic dispatch optimization process of the independent microgrid of dual master control dynamic cooperation on the basis of a particle swarm optimization algorithm. The economic dispatch optimization method of the independent microgrid on the basis of dual master control dynamic cooperation solves the problem of economic dispatch optimization of two different types of master power of the battery energy storage system and the diesel generating set in the independent microgird, can simultaneously pursue the aims of an optimal operation control mode of the system and minimum generating cost, effectively realize the aim of minimum generating total cost of economic operation and maximum using of renewable energy sources of the independent microgird system, and improve the economic operation performance of the microgrid.

Description

technical field [0001] The invention belongs to the technical field of micro-grid economic operation, and relates to an independent micro-grid economic scheduling optimization method based on dual-master dynamic cooperation, in particular to an independent micro-grid based on dual-master dynamic cooperation of a battery energy storage system and a diesel generator set Economic dispatch optimization method. Background technique [0002] The economic dispatch optimization of the independent microgrid is a key technology to minimize the total power generation cost of the system by optimizing the deployment of the distributed power combination and its output on the basis of ensuring the stable and reliable operation of the system. Due to the various types of distributed power sources in the independent micro-grid system, different control characteristics, different operating states and operating costs and other influencing factors, the economic dispatch optimization of independe...

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Problems solved by technology

The Chinese invention patent application with the application number 201110191474.5 proposes a multi-time-scale energy optimization scheduling method for microgrids in independent operation mode, which divides the economic scheduling of microgrids into two stages: day-ahead planning and real-time scheduling; in day-ahead planning, based on The day-ahead forecast data establishes the day-ahead unit start-stop optimization plan model; in the real-time scheduling, follow the day-ahead planned start-up and shutdown results, based on the real-time ultra-short-term forecast data and the real-time operating status of each power source, to determine the active power dispatching instructions, unloading However, this method does not address the mutual coupling effects of distributed power sources and battery energy storage systems in each time period in the system, and does not provide corresponding dynamic scheduling and coordination among various controllable power sources. Control plan

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