基于闭环定子磁链观测器的异步电机直接转矩控制在低速范围的性能分析

ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501) Pub Date : 2001-08-18 DOI:10.1109/ICEMS.2001.970616

Youn-Ok Choi, Kang-Yeon Lee, K. Seo, Gi-bum Kim, Byung-Ho Jung, G. Cho, H. Baek, Sam-Yong Jeong

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引用次数: 14

摘要

交流电机直接转矩控制(DTC)虽然实现方案简单，但具有快速的转矩和磁链动态响应。然而，当定子电阻发生变化时，采用常规开环定子磁链观测器的直接转矩控制在低速范围内表现不佳。为此，作者提出了一种新的非线性定子磁链观测器，用于估计异步电动机低速时的定子磁链，并给出了仿真结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance analysis of the DTC using a closed loop stator flux observer for induction motor in the low speed range

Direct torque control (DTC) of an AC motor has the fast torque and flux dynamic responses even though it has very simple scheme to implement. However, DTC do not show good performance at low speed range with conventional open loop stator flux observer when stator resistance varied. Therefore, authors propose a new nonlinear stator flux observer in order to estimate the stator flux of induction motor at low speed and show its simulation results.

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ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)

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