摘要
针对传统基于全阶观测器的无速度传感器感应电机在极低速发电运行时存在不稳定的问题,基于劳斯-赫尔维茨判据,提出了一种能够提高感应电机转速估计精度的误差反馈矩阵设计方法。进一步的对比观测和实验验证表明,该反馈矩阵能够有效提升感应电机的极低速发电运行稳定性。
The stability is a well-known problem of the traditional full-order observer based speed sensorless induction motor at low-speed regeneration area. Based on Routh-Hurwitz criterion, a feedback gain based method was proposed to improve the estimated accuracy of induction motor speed. Further comparative observations and experimental verifications prove that the proposed feedback gain can effectively improve the stability of the induction motor at low-speed regeneration region.
作者
王译晗
杜秀霞
WANG Yi-han;DU Xiu-xia(Beijing Jiaotong University,Beijing 100044, China)
出处
《微特电机》
2019年第5期25-28,共4页
Small & Special Electrical Machines
