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Power electronic circuit optimization method based on particle swarm algorithm

A technology of particle swarm algorithm and power electronics, which is applied in calculation, calculation model, electrical digital data processing, etc., can solve problems such as dependence and unsuitable power electronic circuit optimization

Inactive Publication Date: 2009-06-03
SUN YAT SEN UNIV
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  • Description
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Problems solved by technology

Deterministic algorithms, such as gradient methods and hill-climbing methods, tend to fall into local optima, resulting in suboptimal component combinations
Moreover, some deterministic algorithms are too dependent on the selection of initial search points, so they are often not suitable for the optimization of power electronic circuits

Method used

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  • Power electronic circuit optimization method based on particle swarm algorithm
  • Power electronic circuit optimization method based on particle swarm algorithm
  • Power electronic circuit optimization method based on particle swarm algorithm

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Embodiment Construction

[0028] The method of the invention will be further described below in conjunction with the accompanying drawings.

[0029] The basic structure diagram of the power electronic circuit is shown in figure 1 As shown, it includes two parts of power transmission and feedback network. The power transfer section contains I P resistance, J P inductance and K P capacitor; the feedback network part includes I F resistance, J F inductance and K F a capacitor. The passive components in the two parts are represented by two vectors respectively

[0030] Θ P =[R P L P C P ], Θ F =[R F L F C F ]

[0031] in, R ‾ P = R 1 R 2 · · ...

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Abstract

The demand for automation design of power electronic circuits becomes higher and higher with the development of the power electronic technology. In the invention, a particle swarm algorithm is applied to the design and optimization of the power electronic circuits, and the invention mainly relates to the power electronics field and the intelligent computation field. In the optimization method, an optimization process is divided into two parts by a decoupling technology to respectively optimize the power transmission of the power electronic circuit and a feedback network. Meanwhile, a mutation operator is introduced into the particle swarm algorithm to increase diversity of the swarm and improve the optimization efficiency of the algorithm. The optimization design of a buck converter is taken as an example for testing, which proves that the optimization method is very effective.

Description

Technical field: [0001] The invention relates to two fields of power electronics and intelligent computing, and mainly relates to a method for optimizing a power electronic circuit based on a particle swarm algorithm. technical background: [0002] Power electronic circuits can effectively control power transmission by adjusting the supply current or voltage to adapt to the user's load, and have been widely used in various daily devices, such as mobile devices, computers, televisions, and uninterruptible power supplies. With the advancement of semiconductor technology and electronic packaging technology, the demand for automatic generation of power electronic circuits is getting higher and higher. [0003] The methods of automatic circuit design and optimization are mainly divided into two types: deterministic algorithm and stochastic algorithm. Deterministic algorithms, such as gradient methods and hill-climbing methods, tend to fall into local optima, resulting in subopti...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06N3/00
Inventor 张军史源詹志辉黄韬
Owner SUN YAT SEN UNIV
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