一种基于动态磁链重构的互感器误差自补偿方法
By employing a weighted dual-domain integral noise-suppressed flux linkage reconstruction algorithm and a dynamic error extension state observer, the problem of inaccurate error compensation of current transformers under dynamic loads is solved, achieving high-precision real-time error compensation and improving measurement accuracy and system stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANTAI DONGFANG WISDOM ELECTRIC
- Filing Date
- 2025-12-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot effectively solve the nonlinearity and dynamic error of the secondary side signal of current transformers under dynamic loads or complex electromagnetic environments, resulting in inaccurate measurement results and poor system stability.
A weighted dual-domain integral noise-suppressed flux linkage reconstruction algorithm and a dynamic error extended state observer are adopted. By combining time-domain and frequency-domain integral paths, a dynamic error compensation model is constructed to achieve high-precision real-time compensation for nonlinear and dynamic errors.
It achieves high-precision real-time compensation of the secondary side signal of the current transformer, improves the accuracy of measurement results and the dynamic performance of the system, and takes into account both response speed and anti-interference capability.
Smart Images
Figure CN121656949B_ABST