Comparison of a Reduced-Order Observer and a Full-Order Observer for Sensorless Synchronous Motor Drives

被引：70
作者：
Tuovinen, Toni [1 ]
Hinkkanen, Marko [1 ]
Harnefors, Lennart [2 ,3 ]
Luomi, Jorma [4 ]
机构：
[1] Aalto Univ, Dept Elect Engn, Espoo 00076, Finland
[2] ABB Corp Res, S-72178 Vasteras, Sweden
[3] Royal Inst Technol, S-10044 Stockholm, Sweden
[4] Aalto Univ, Dept Elect Engn, Espoo 00076, Finland
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2012年 / 48卷 / 06期
关键词：
Observer; parameter uncertainties; permanent-magnet (PM) synchronous motor (PMSM); sensorless; stability conditions; synchronous reluctance motor (SyRM); RELUCTANCE MACHINES; POSITION ESTIMATION; ROTOR POSITION; SPEED;
D O I：
10.1109/TIA.2012.2226200
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two back-electromotive-force-based position observers are compared for motion-sensorless synchronous motor drives: the reduced-order observer and the adaptive full-order observer. A stabilizing gain is proposed for the adaptive full-order observer, which guarantees the local stability of the closed-loop system, if the motor parameters are known. Equations for the steady-state position error and for the linearized estimation-error dynamics under erroneous parameters are derived, and the robustness of the two observers against parameter errors is analyzed and compared. The observers are experimentally evaluated using a 6.7-kW synchronous reluctance motor drive in low-speed operation and under parameter errors. The gain selection of the reduced-order observer is easier, but the adaptive full-order observer can be made more robust against parameter variations and noise.
引用
收藏
页码：1959 / 1967
页数：9
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