一种异步电机转子磁链混合观测方法
By constructing a nonlinear hybrid current and voltage observation model, the problem of inaccurate flux observation in asynchronous motors was solved, achieving high-precision rotor flux observation and improving the dynamic performance of the motor.
CN121036600BActive Publication Date: 2026-07-17TIANJIN RES INST OF ELECTRIC SCI
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANJIN RES INST OF ELECTRIC SCI
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Inaccurate flux linkage observation in existing asynchronous motors leads to reduced dynamic characteristics, affecting motor performance and even preventing normal operation.
Method used
A nonlinear hybrid approach is used to construct current and voltage observation models, and the hybrid model is combined with the observation of rotor flux linkage of asynchronous motor to reduce dependence on motor parameters.
Benefits of technology
It improves the accuracy of flux linkage observation, ensuring that rotor flux linkage can still be accurately observed even when motor parameters are inaccurate, thereby enhancing the dynamic performance of the motor.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN121036600B_ABST
Abstract
本发明涉及一种异步电机转子磁链混合观测方法，通过构建电流观测模型和构建电压观测模型；并根据构建的电流观测模型和电压观测模型构建混合模型；使用构建的混合模型进行异步电机磁链观测。本发明的异步电机转子磁链混合观测模型观测精度高，受电机参数影响小。实际工程中，电机参数往往无法精确辨识，在电机参数辨识偏差较大的情况下，本发明提出的方案仍然能够准确地观测转子磁链，相比现有的磁链观测模型，具有显著优势。
Need to check novelty before this filing date? Find Prior Art