Optimal design of piezoelectric transformer for high efficiency and high power density

Author

Seo, J.M. ; Choi, J.H. ; Moon, C.W. ; Sung, H.G.

Author_Institution

Intelligent Mechatronics Res. Center, Korea Electron. Technol. Inst., Bucheon, South Korea

Volume

3

fYear

2005

fDate

27-29 Sept. 2005

Firstpage

2290

Abstract

The characteristics of piezoelectric transformer, such as resonance frequency, matching impedance, electromechanical coupling coefficient and efficiency, were analyzed using the finite element analysis along with the equivalent circuit. The validity of the proposed numerical methods was conformed experimentally. Through all of the verified results, the optimal design for a high efficiency and high power density was determined using the multi-modal optimization algorithm based on an evolution strategy.

Keywords

design engineering; finite element analysis; optimisation; piezoelectric devices; power transformers; electromechanical coupling coefficient; equivalent circuit; evolution strategy; finite element analysis; high efficiency; high power density; matching impedance; multimodal optimization algorithm; piezoelectric transformer; resonance frequency; Coupling circuits; Design optimization; Electrodes; Equivalent circuits; Finite element methods; Impedance matching; Piezoelectric effect; Power supplies; Resonance; Vibrations; asymptotic waveform evaluation; electro-mechanical coupling coefficient; evolution strategy for multi-modal optimization; finite element method; impedance matching; piezoelectric transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on

Print_ISBN

7-5062-7407-8

Type

conf

DOI

10.1109/ICEMS.2005.202978

Filename

1575175