Analysis and Compensation of Inverter Nonlinearity Effect on a Sensorless PMSM Drive at Very Low and Zero Speed Operation

被引：67

作者：

Raute, Reiko ^{[1
]}

Caruana, Cedric ^{[1
]}

Staines, Cyril Spiteri ^{[1
]}

Cilia, Joseph ^{[1
]}

Sumner, Mark ^{[2
]}

Asher, Greg M. ^{[2
]}

机构：

[1] Univ Malta, Fac Engn, Msida 2080, Malta

[2] Univ Nottingham, Fac Engn, Nottingham NG7 2RD, England

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2010年 / 57卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

Inverter nonlinearity; permanent-magnet machines; saliency; sensorless control; INDUCTION-MOTORS; VELOCITY ESTIMATION; ROTOR POSITION; VECTOR CONTROL; AC MACHINES; FREQUENCY; INJECTION; FLUX; ACQUISITION; PERFORMANCE;

D O I：

10.1109/TIE.2010.2044116

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

It has been well established in the literature that inverter nonlinearity effects afflict saliency-based sensorless drives. The inverter nonlinearity leads to the generation of signals that corrupt the useful position information. The resulting effect differs depending on the injection approach utilized in the drive. Various compensation techniques to overcome this effect have been published in the literature. This paper is concerned with the zero-vector current-derivative technique. The effect of the varying ON-state resistance of the inverter power devices on the position signal is investigated in detail. Knowledge of the source of the corrupting signals facilitates compensation and determines its applicability. Two approaches for inverter nonlinearity compensation are compared. The first approach utilizes a lookup table from offline-processed data, while the second one is a simpler approach based on the current-dependent resistance characteristic of the inverter switching devices. Experimental performance under sensorless condition is shown for both approaches.

引用

页码：4065 / 4074

页数：10

共 27 条

[11] Sensorless acquisition of the rotor position angle of induction motors with arbitrary stator windings [J].