Title :
Sensitivity analysis and automatic design of voltage ratio in an optical instrument voltage transformer
Author :
Xiang, Cui ; Guoqiang, Zhang
Author_Institution :
North China Electr. Power Univ., Hebei, China
fDate :
5/1/1999 12:00:00 AM
Abstract :
Based on the finite element computation of the electric field, a formula of sensitivity evaluation of the voltage ratio to the axial position of a movable electrode is derived. The sensitivity of the voltage ratio to the axial position of the movable electrode in an optical instrument voltage transformer is analyzed only by means of finite element mesh generation and one time solution. This formula is also extended into computation of derivative of the objective function that is for the automatic design of the voltage ratio and the voltage ratio can be designed through an optimization process based on the sensitivity analysis. Numerical results are found to be satisfactory
Keywords :
electric fields; electrodes; instrument transformers; mesh generation; optimisation; potential transformers; sensitivity analysis; automatic voltage ratio design; electric field; finite element computation; finite element mesh generation; movable electrode axial position; objective function; optical instrument voltage transformer; optimization process; sensitivity analysis; Design optimization; Electrodes; Finite element methods; Grounding; Instruments; Mesh generation; Optical design; Optical sensors; Sensitivity analysis; Voltage transformers;
Journal_Title :
Magnetics, IEEE Transactions on
