HIGH PRECISION SIMULATION ON SURFACE POTENTIAL OF CELLULAR ELECTRETS BY CHARGE SIMULATION METHOD

J. W. Zhang, X. Chen, Y. S. Zhao, Z. Y. Su and R. T. Liu
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J. W. Zhang: Key Laboratory of Engineering Dielectrics and Its Application, Harbin University of Science and Technology, No. 52 Xuefu Road, Harbin 150080, P. R. China†School of Electrical Engineering, Northeast Electric Power University, No. 169 Changchun Road, Jilin 132013, P. R. China
X. Chen: #x2021;State Grid Tianjin Training Center, No. 6 Zhongshanmen No. 2 Road, Hedong District, Tianjin 300171, P. R. China
Y. S. Zhao: #xA7;State Grid Information and Telecommunication Group Co. Ltd., Beijing 100031, P. R. China
Z. Y. Su: #xB6;School of Computer Science and Information Technology, Northeast Normal University, Changchun 130117, P. R. China
R. T. Liu: #x2225;State Grid Liaoning Province Power Co. Ltd., Power Research Institute, Shenyang 110181, P. R. China

Surface Review and Letters (SRL), 2019, vol. 26, issue 01, 1-5

Abstract: Surface potential is one of the key properties of charge retain ability and energy storage performance of cellular electrets. Based on charge simulation method (CSM), a high precision simulation algorithm of surface potential of functional dielectrics is proposed in this paper, which can be applied to the simulations of cellular polypropylene after high-voltage corona discharge. In order to validate the modeling, the surface potential of insulating polymer after corona discharge is measured by an electrostatic measurement system and compared with simulation results based on CSM and finite element method (FEM). The result shows that the numerical simulation based on CSM is well consistent with the experimental data, which indicates that the modeling based on CSM can be used in the calculation and analysis of charge storage ability of capacitor and electrostatic generator based on functional electrets. Moreover, as simulation based on CSM has higher precision than FEM, investigation of surface charge storage ability and prediction of electrostatic hazards of insulating dielectrics could be realized by using CSM.

Keywords: Cellular electrets; energy storage; charge retain ability; charge simulation method; corona polarization (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1142/S0218625X18501330

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