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A Three-phase Inverter Control Method Based on Seagull Optimization Algorithm

A technology of three-phase inverter and optimization algorithm, which is applied in the field of electric power, can solve problems such as the difficulty in setting control parameters of three-phase inverters, achieve powerful global search capabilities and local search capabilities, good optimization accuracy and convergence speed Effect

Active Publication Date: 2022-04-12
NANCHANG UNIV
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Problems solved by technology

[0003] In order to solve the problem of difficult setting of three-phase inverter control parameters, the present invention provides a three-phase inverter control method based on seagull optimization algorithm, which relates to the field of electric power technology

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  • A Three-phase Inverter Control Method Based on Seagull Optimization Algorithm
  • A Three-phase Inverter Control Method Based on Seagull Optimization Algorithm
  • A Three-phase Inverter Control Method Based on Seagull Optimization Algorithm

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[0063] The technical solutions in the examples of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the examples of the present invention.

[0064] as follows Figure 1 to Figure 3 As shown, an example of the present invention discloses a three-phase inverter control method based on the seagull optimization algorithm, comprising the following steps:

[0065] Step1: Initialize the seagull population, seagull population P S Initialize, initialize additional variables A, B, the maximum number of iterations is M;

[0066] Step2: Migration (global search) stage: In order to avoid collision with other seagulls, update the position, the position update formula is:

[0067] C s (t)=A*P s (x)

[0068] In the formula, C s (t) represents a new position that does not conflict with other seagulls, P s (x) indicates the current position of the seagull;

[0069] Step3: After avoiding overlapping with other seagulls, ...

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Abstract

The invention discloses a three-phase inverter control method based on a seagull optimization algorithm, which relates to the field of electric power technology and includes the following steps: S1, initializing the seagull population, designing the seagull optimization algorithm to output the best seagull position and fitness value; S2 . Establish a three-phase inverter off-grid tuning model; S3: According to the optimal solution obtained by S1, transfer it to the three-phase inverter off-grid tuning model. The present invention applies the seagull optimization algorithm with powerful global search ability and local search ability and the ability to deal with high-dimensional problems, better optimization accuracy and convergence speed to the PID control system for control parameter tuning, and proposes a seagull optimization algorithm based on seagull optimization. The PID control parameter tuning method based on the algorithm is finally applied to the three-phase inverter off-grid parameter tuning model, which is of great significance to the three-phase inverter control parameter tuning problem.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a three-phase inverter control method based on a seagull optimization algorithm. Background technique [0002] The inverter is a converter that can convert direct current into constant frequency and constant voltage or frequency modulation and voltage regulation alternating current, and is an extremely important device in the power industry. The output waveform of the inverter has a lot to do with the control parameters, how to select the control parameters of the inverter is the hot spot of current research. The traditional manual tuning method relies on human experience, and its performance is average. Relay feedback requires oscillation information, and some systems do not allow oscillation to occur. The parameter setting using swarm intelligence algorithm does not require the operator to have a lot of manual experience, takes less time, and has a good application pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/48H02J3/38G06N3/00
CPCH02M7/48H02J3/38G06N3/006
Inventor 聂晓华王槐杰苏才淇高家明
Owner NANCHANG UNIV
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