A hybrid current controller for dual three-phase permanent magnet synchronous motors

2014 ◽  
Vol 9 (2) ◽  
pp. 214-218 ◽  
Author(s):  
Feixiong Yuan ◽  
Shenghua Huang
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors ◽  
Current Controller ◽  
Three Phase

Comparison of torque capability of three-phase permanent magnet synchronous motors with different permanent magnet arrangement

2007 ◽  
Vol 316 (2) ◽  
pp. e261-e264 ◽  
Author(s):  
Bojan Štumberger ◽  
Gorazd Štumberger ◽  
Miralem Hadžiselimović ◽  
Anton Hamler ◽  
Viktor Goričan ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors ◽  
Three Phase

Multiphase permanent magnet synchronous motors with fractional slot windings

2016 ◽  
Vol 35 (6) ◽  
pp. 1937-1948 ◽  
Author(s):  
Cezary Jedryczka ◽  
Wojciech Szelag ◽  
Zbigniew Jerry Piech
Keyword(s):  
Permanent Magnet ◽  
Fault Tolerant ◽  
Computer Code ◽  
Permanent Magnet Synchronous Motors ◽  
Magnetomotive Force ◽  
Content Type ◽  
Synchronous Motors ◽  
Three Phase ◽  
Torque Pulsations ◽  
Fractional Slot

Purpose The purpose of this paper is to investigate advantages of multiphase permanent magnet synchronous motors (PMSM) with fractional slot concentrated windings (FSCW). The investigation is based on comparative analysis and assessment of FSCW PMSM wound as 3, 6, 9 and 12 phase machines suited for low speed applications. Design/methodology/approach The investigations are focussed on distortions of back electromotive (emf) and magnetomotive force (mmf) with the torque ripples and motors’ performance taken into account. The finite element models with the aid of customized computer code have been adopted for motor winding design and back emf, mmf and motor performance analyses. Findings The novel multiphase winding layouts were found to offer lower content of sub-harmonics in the mmf waveforms compared with the traditional three-phase machine designs. Moreover, the investigated multiphase machines exhibited higher average value of the electromagnetic torque, while the multiphase PMSM machines with FSCW were further characterized by significantly lower torque pulsations. Originality/value The analyses presented in this paper demonstrate that PMSM with FSCW are advantageous to their counterpart three-phase machines. Specifically, they offer higher performance and are more suitable to work with multiple drives supplying segmented winding system. This ability of using multi-drive supply for one motor offers flexibility and cost reduction while increasing fault tolerant power train system.

scholarly journals A Novel Voltage Injection Based Offline Parameters Identification for Current Controller Auto Tuning in SPMSM Drives

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 3010
Author(s):  
Jiang Long ◽  
Ming Yang ◽  
Yangyang Chen ◽  
Dianguo Xu ◽  
Frede Blaabjerg
Keyword(s):  
Permanent Magnet ◽  
Open Loop ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors ◽  
Integral Current ◽  
Selection Strategies ◽  
Current Controller ◽  
Nonlinearity Effect ◽  
Auto Tuning ◽  
Stator Resistance

This paper presents a comprehensive study on a novel voltage injection based offline parameter identification method for surface mounted permanent magnet synchronous motors (SPMSMs). It gives solutions to obtain stator resistance, d- and q-axes inductances, and permanent magnet (PM) flux linkage that are totally independent of current and speed controllers, and it is able to track variations in q-axis inductance caused by magnetic saturation. With the proposed voltage amplitude selection strategies, a closed-loop-like current and speed control is achieved throughout the identification process. It provides a marked difference compared with the existing methods that are based on open-loop voltage injection and renders a more simplified and industry-friendly solution compared with methods that rely on controllers. Inverter nonlinearity effect compensation is not required because its voltage error is removed by enabling the motor to function at a designed routine. The proposed method is validated through two SPMSMs with different power rates. It shows that the required parameters can be accurately identified and the proportional-integral current controller auto-tuning is achieved only with very limited motor data such as rated current and number of pole pairs.

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.

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