Low-Speed and Standstill Operation of a Sensorless Direct Torque and Flux Controlled IPM Synchronous Motor Drive

被引：83
|
作者：
Foo, Gilbert [1 ]
Sayeef, Saad [1 ]
Rahman, M. F. [1 ]
机构：
[1] Univ New S Wales, Sydney, NSW 2052, Australia
来源：
IEEE TRANSACTIONS ON ENERGY CONVERSION | 2010年 / 25卷 / 01期
关键词：
Direct torque and flux control (DTFC); sensorless; signal injection; zero speed; VARIABLE-STRUCTURE CONTROL; SIGNAL INJECTION; MACHINE; OBSERVER; POSITION; RIPPLE;
D O I：
10.1109/TEC.2009.2025407
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper investigates a sensorless direct torque and flux control scheme for interior permanent magnet synchronous motor drives at low speeds, including standstill. Closed-loop control of both torque and stator flux linkage are achieved by using two proportional-integral controllers. The reference voltage vectors are generated by a space vector modulation unit. A high-frequency signal injection technique is adopted at low speeds to obtain the rotor position information. A hybrid current-voltage model flux observer with a smooth handover algorithm estimates the stator flux linkage over the whole speed range. Experimental results confirm the effectiveness of the proposed method.
引用
收藏
页码：25 / 33
页数：9
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