"Active Flux" DTFC-SVM Sensorless Control of IPMSM

被引:130
作者
Boldea, Ion [1 ]
Paicu, Mihaela Codruta [1 ]
Andreescu, Gheorghe-Daniel [2 ]
Blaabjerg, Frede [3 ]
机构
[1] Univ Politehn Timisoara, Dept Elect Engn, Timisoara 300223, Romania
[2] Univ Politehn Timisoara, Dept Automat & Appl Informat, Timisoara 300223, Romania
[3] Univ Aalborg, Inst Energy Technol, DK-9220 Aalborg, Denmark
关键词
Flux observers; permanent magnet synchronous motors; sensorless control; state estimation; torque control; variable speed drives; MAGNET SYNCHRONOUS MOTOR; AC MACHINES; POSITION ESTIMATION; ZERO-SPEED; DRIVES; INDUCTION; VELOCITY; OBSERVER; SALIENCY;
D O I
10.1109/TEC.2009.2016137
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 proposes an implementation of a motion-sensorless control system in wide speed range based on "active flux" observer, and direct torque and flux control with space vector modulation (DTFC-SVM) for the interior permanent magnet synchronous motor (IPMSM), without signal injection. The concept of "active flux" (or "torque producing flux") turns all the rotor salient-pole ac machines into fully nonsalient-pole ones. A new function for L-q inductance depending on torque is introduced to model the magnetic saturation. Notable simplification in the rotor position and speed estimation is obtained, because the active flux position is identical with the rotor position. Extensive experimental results are presented to verify the principles and to demonstrate the effectiveness of the proposed sensorless control system. With the active flux observer, the IPMSM drive system operates from very low speed of 2 r/min at half full-load up to 1400 r/min. Higher speed is possible, in principle, with flux weakening.
引用
收藏
页码:314 / 322
页数:9
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