Robust Current Controller Considering Position Estimation Error for Position Sensor-less Control of Interior Permanent Magnet Synchronous Motors under High-speed Drives

10.5772/14285 ◽  
2011 ◽  
Author(s):  
Masaru Hasegawa ◽  
Keiju Matsui
Keyword(s):  
Permanent Magnet ◽  
High Speed ◽  
Estimation Error ◽  
Position Estimation ◽  
Position Sensor ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors ◽  
Current Controller ◽  
Interior Permanent Magnet

scholarly journals A Modulated Model Predictive Current Controller for Interior Permanent-Magnet Synchronous Motors

Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2885 ◽  
Author(s):  
Crestian Almazan Agustin ◽  
Jen-te Yu ◽  
Cheng-Kai Lin ◽  
Xiang-Yong Fu
Keyword(s):  
Permanent Magnet ◽  
Poor Performance ◽  
Sampling Period ◽  
Current Control ◽  
Duty Ratio ◽  
Prediction Errors ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors ◽  
Current Controller ◽  
Interior Permanent Magnet

Model predictive current controllers (MPCCs) are widely applied in motor drive control and operations. To date, however, the presence of large current errors in conventional predictive current control remains a significant predicament, due to harmonic distortions and current ripples. Naturally, noticeable current estimation inaccuracies lead to poor performance. To improve the above situation, a modulated model predictive current controller (MMPCC) is proposed for interior permanent-magnet synchronous motors (IPMSMs) in this paper. Two successive voltage vectors will be applied in a sampling period to greatly boost the number of candidate switching modes from seven to thirteen. A cost function, which is defined as the quadratic sum of current prediction errors, is employed to find an optimal switching mode and an optimized duty ratio to be applied in the next sampling period, such that the cost value is minimal. The effectiveness of the proposed method is verified through eight experiments using a TMS320F28379D microcontroller, and performance comparisons are made against an existing MPCC. In terms of quantitative improvements made to the MPCC, the proposed MMPCC reduces its current ripple and total harmonic distortion (THD) by, on average, 27.17% and 21.84%, respectively.

scholarly journals Towards an improved energy efficiency of the interior permanent magnet synchronous motor drives

2014 ◽  
Vol 11 (2) ◽  
pp. 257-268 ◽  
Author(s):  
Marko Gecic ◽  
Darko Marcetic ◽  
Veran Vasic ◽  
Igor Krcmar ◽  
Petar Matic
Keyword(s):  
Energy Efficiency ◽  
Permanent Magnet ◽  
High Speed ◽  
Permanent Magnet Synchronous Motor ◽  
Motor Drives ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors ◽  
Stator Current ◽  
Interior Permanent Magnet ◽  
Efficiency Increase

This paper investigates the possibility of energy efficiency increase in the drives with high speed permanent magnet synchronous motors. The losses are decreased by the proposed procedure, i.e. proper allocation of the available stator current capacity to the direct and quadrature current components. The approach provides increased energy efficiency by varying the ratio between copper and iron losses.

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