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Island microgrid adaptive droop control method based on improved particle swarm algorithm

A technology for improving particle swarm and particle swarm algorithm, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as bus voltage drop and power distribution accuracy drop, so as to improve distribution accuracy, dynamic performance and stability Effect

Inactive Publication Date: 2020-11-27
南方电网能源发展研究院有限责任公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide an island microgrid adaptive droop control method, system and computer-readable storage medium based on the improved particle swarm optimization algorithm, so as to solve the power distribution that may be generated in the droop control of the microgrid due to the difference in line impedance A series of problems such as accuracy drop and bus voltage drop

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  • Island microgrid adaptive droop control method based on improved particle swarm algorithm
  • Island microgrid adaptive droop control method based on improved particle swarm algorithm
  • Island microgrid adaptive droop control method based on improved particle swarm algorithm

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[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0064] It should be understood that the step numbers used herein are only for convenience of description, and are not intended to limit the execution order of the steps.

[0065] It should be understood that the terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an"...

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Abstract

The invention discloses an island microgrid adaptive droop control method based on an improved particle swarm algorithm. According to the influence of the microgrid structure and the microgrid line parameters on a traditional droop control algorithm, a fuzzy rule algorithm is introduced into a basic particle swarm algorithm so as to dynamically adjust learning factors and inertia weights of the particle swarm algorithm, and an improved particle swarm algorithm is obtained; a frequency droop coefficient and a voltage droop coefficient in a microgrid droop control algorithm are optimized according to the improved particle swarm algorithm to obtain a reference voltage and a reference current; an inverter control signal is generated from the reference voltage and the reference current; the inverter control signal is input into the inverter of the microgrid to control the distribution of the active power and the reactive power of the inverter, so that the distribution precision of the active power and the reactive power is effectively improved, and the dynamic performance and the stability of the microgrid are improved.

Description

technical field [0001] The present invention relates to the technical field of power system control, in particular to an island microgrid adaptive droop control method, system and computer-readable storage medium based on an improved particle swarm algorithm. Background technique [0002] The important role of artificial intelligence control algorithms in solving complex problems in power grids has become increasingly prominent. Compared with traditional control methods, artificial intelligence control algorithms have incomparable advantages. method. [0003] In the prior art, there is an improved droop control strategy combining coupling compensation and virtual impedance, which reduces the power coupling of DG units (Distributed Generation) by adding reasonable virtual reactance, and coupling compensation can reduce uncontrollable For the influence of power coupling, the improved particle swarm optimization (PSO) is used to optimize the parameters of coupling compensation...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/48H02J3/50H02J3/38
CPCH02J3/48H02J3/50H02J3/388H02J2203/20
Inventor 冷祥彪彭飞赖余斌洪巧章陈晓明
Owner 南方电网能源发展研究院有限责任公司
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