Robust Sensors-Fault-Tolerance With Sliding Mode Estimation and Control for PMSM Drives

被引:121
作者
Kommuri, Suneel Kumar [1 ]
Lee, Sang Bin [1 ]
Veluvolu, Kalyana Chakravarthy [2 ]
机构
[1] Korea Univ, Sch Elect Engn, Seoul 136713, South Korea
[2] Kyungpook Natl Univ, Sch Elect Engn, Daegu 702701, South Korea
基金
新加坡国家研究基金会;
关键词
Fault-tolerant control (FTC); observer-based fault detection; reliable control; residual-generation; sliding mode (SM) control; MAGNET SYNCHRONOUS MOTOR; DC-LINK VOLTAGE; RESILIENT CONTROL; OBSERVER; SYSTEMS; VEHICLES; SPEED;
D O I
10.1109/TMECH.2017.2783888
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In general, permanent magnet synchronous motor (PMSM) drives require four sensors (one position, one dc-link voltage, and at least two current sensors) to obtain good dynamic control performance. If an unpredictable fault occurs in any of these sensors, the performance of the drive deteriorates or even becomes unstable. Most of the existing works are limited to fault diagnosis of one or two sensors due to complexity. Therefore, to provide a continuous drive operation regardless of any of the sensor faults, an advanced fault-tolerant control (FTC) scheme that comprises of higher order sliding mode (HOSM) based observers and controllers is proposed. Two HOSM observers and one Luenberger observer are designed to generate the respective residuals and provide the detection of all sensor faults. Moreover, HOSM controllers are developed to ensure finite-time convergence of the error trajectories after the fault reconfiguration. The proposed FTC scheme reduces the existing chattering phenomenon with good performance in terms of convergence speed and steady-state error. Evaluation results on a three-phase PMSM are presented to validate the effectiveness of the proposed FTC approach.
引用
收藏
页码:17 / 28
页数:12
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