基于差分进化算法的三维电场传感器解耦标定方法

The information sensing of space electric field has important value in the sensing and measurement technology of power system. However, at present, there is no reliable measurement device of space DC electric field. The calibration method of space three-dimensional electric field sensor needs to be further studied. In this paper, a calibration model with inter-dimensional coupling and angular deviation is established under a three-dimensional adjustable external electric field. A method of solving the sensitivity coefficient matrix based on the differential evolution algorithm under this model is proposed. This method is more accurate and stable through the comparative study, and the error rate is less than 3% in multiple sets of simulation experiments (measurement error is not included). In addition, the variation of accuracy with the range of angle values is discussed, which can further improve the accuracy of the algorithm and the accuracy of calibration. The three-dimensional electric field sensor decoupling calibration method based on differential evolution algorithm can simplify the complexity and difficulty of calibration device design, and can also provide reference for other types of three-dimensional sensor calibration.