Affiliation:
1. College of Computer and Control Engineering Minjiang University Fuzhou 350108 China
2. The Internet of Things and Artificial Intelligence College Fujian Polytechnic of Information Technology Fuzhou China
3. School of Mechanical and Electrical Engineering Fujian Agriculture and Forestry University Fuzhou China
Abstract
Nowadays, the optical voltage sensor (OVS) has become the best practical solution for the high voltage measurement in modern smart grid. And the polarization of the incident light greatly influences the sensor's measurement accuracy. In this paper, taking the radial polarization optical voltage sensor (RPOVS) as an example, its practical optical model is established by using the theory of polarized optics. The formula of the measurement relative error is obtained, and the influences of the ellipticity and extinction ratio on sensor performance are analyzed in detail. Then the suggestions are given and verified by simulations and experiments, which show the measurement error brought by the polarizer parameters to RPOVS is reduced by about 0.2%, promoting the sensor's realization of 0.2 accuracy class from the aspect of optical path. In addition, this study has certain reference value for other types of OVS and optical polarization measurement. © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Fujian Province
Subject
Electrical and Electronic Engineering