Micro-grid optimization method based on good point set quantum particle swarm algorithm

Abstract

The invention relates to a micro-grid optimization method based on a good point set quantum particle swarm algorithm. The micro-grid optimization method based on a good point set quantum particle swarm algorithm comprises the steps: establishing a micro-grid multi-target optimization model including a micro-grid multi-target optimization objective function formula and a micro-grid multi-target optimization constrained condition formula; using a good point set to improve a quantum particle swarm algorithm; and using the good point set quantum particle swarm algorithm to solve the micro-grid multi-target optimization model. The micro-grid optimization method determines the capacity of a micro gas turbine according to the maximum load, and re-optimizes the capacity of an intermittent distributed power supply and an energy storage system. During the solution process, the micro-grid optimization method utilizes the good point set quantum particle swarm algorithm, thus guaranteeing the optimization result and guaranteeing the good selectivity and instructiveness at the same time. As a built-in filtering-based on scheduling strategy can give full play to the characteristics of the micro gas turbine and the energy storage system, the micro-grid optimization method has the advantage of a spectrum analysis method and also has better timeliness, and can obtain the position and capacity of the distributed power supply, the energy storage system and the micro gas turbine in the micro-grid through calculation so as to realize economical efficiency in the isolated micro-grid and the integral optimization of discharge of pollutants.

Description

technical field [0001] The invention relates to a micro-grid planning method. In particular, it relates to a microgrid optimization method based on the good point set quantum particle swarm algorithm for isolated microgrids containing distributed power sources, energy storage and micro gas turbines. Background technique [0002] Microgrid refers to a small power distribution system composed of distributed power supply, load, energy storage device, control system, etc., which can be divided into grid-connected type and isolated type. Isolated microgrids can only rely on local renewable energy or other distributed power generation units, supplemented by corresponding energy storage units to supply power to local loads. Since the isolated microgrid cannot obtain electric energy from the outside world, the planning and design of the isolated microgrid is mainly to select the appropriate optimization target and design a reasonable energy scheduling strategy to realize uncontroll...

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Problems solved by technology

Although QPSO has improved PSO, it depends on the selection of initial parameters, and it is easy to fall into local optimum, leading to premature convergence.

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