scholarly journals Field oriented control based on a 24-sector vector space decomposition for dual three-phase PMSM applied on electric ship propulsion

2020 ◽  
Vol 11 (3) ◽  
pp. 1175
Author(s):  
Mhammed Hasoun ◽  
Aziz El Afia ◽  
Mohamed Khafallah ◽  
Karim Benkirane
Keyword(s):  
Vector Space ◽  
Permanent Magnet Synchronous Motor ◽  
Voltage Source ◽  
Field Oriented Control ◽  
Ship Propulsion ◽  
Space Decomposition ◽  
Three Phase ◽  
Electric Ship ◽  
Time Calculation ◽  
Zero Sequence

<p><span lang="EN-US">A Field Oriented Control (FOC) strategy based on a 24-Sector Vector  Space Decomposition (24SVSD) technique used to control a Dual Three-Phase Permanent Magnet Synchronous Motor (DTP-PMSM) applied on electric ship propulsion prototype is presented in this paper. This machine is supplied by Dual Three-Phase Voltage Source Inverter (DTP-VSI). This study carried out on these multiphase machines has revealed that the large zero sequence harmonic current components on (z<sub>1</sub>, z<sub>2</sub>) subspace, constitutes major drawbacks; despite their advantages. The machine’s dynamic model is accomplished in three two-dimensional and orthogonal subspaces. In order to reduce more extra stator harmonic currents that produces losses, the current work is also concering of to consider the three different approaches for the sake of boosting the machine’s efficiency. Thus, the principle selection of the reference voltage vector and the time calculation method are presented in details. The proposed strategy effectiveness is validated by simulation results.</span></p>

scholarly journals Experimental implementation PWM strategy for dual three-phase PMSM using 12-sector vector space decomposition applied on electric ship propulsion

2020 ◽  
Vol 11 (4) ◽  
pp. 1701
Author(s):  
Mhammed Hasoun ◽  
Aziz El Afia ◽  
Mohamed Khafallah ◽  
Karim Benkirane
Keyword(s):  
Vector Space ◽  
Digital Signal Processor ◽  
Pulse Width Modulation ◽  
Low Cost ◽  
Digital Signal ◽  
Conventional Technique ◽  
Ship Propulsion ◽  
Space Decomposition ◽  
Three Phase ◽  
Electric Ship

The current paper aims at presenting and examining an implementation on a digital signal processor (DSP) of the conventional space vector pulse width modulation (CSVPWM) so as to control the dual three phase permanent magnet synchronous motors (DTP-PMSM) drives applied on electric ship propulsion. It is also an attempt to accomplish a developed control of this technique based on vector space decomposition (VSD) strategy. By this strategy, the analysis and the control of the machine are achieved in three two-dimensional orthogonal subspaces. Among the 12 voltage vectors having maximum, the conventional technique namely the adjacent two-vectors (12SA2V) is chosen. Thereby, the test platform allows the implementation of the chosen vectors which are modeled on MATLAB/Simulink using block diagrams and the automatically generated code which is targeted in the DSP card processor. Simulation and experimental results have exposed the efficiency of the proposed test bench of 5 KW prototype machine by using a low-cost TMS32F28379D.

scholarly journals Vector Weighting Approach and Vector Space Decoupling Transform in a Novel SVPWM Algorithm for Six-Phase Voltage Source Inverter

2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Peng Wu ◽  
Lei Yuan ◽  
Zhen Zuo ◽  
Junyu Wei
Keyword(s):  
Vector Space ◽  
Pulse Width Modulation ◽  
Permanent Magnet Synchronous Motor ◽  
Voltage Source ◽  
Phase Voltage ◽  
Three Phase ◽  
Action Time ◽  
Previous Algorithm ◽  
Bus Voltage ◽  
Smooth Transitions

For six-phase permanent-magnet synchronous motor (PMSM) which has two sets of Y-connected three-phase windings spatially phase shifted by 30 electrical degrees, to increase the utilization ratio of the DC bus voltage, a novel space vector pulse width modulation (SVPWM) algorithm in full modulation range capability based on vector weighted method is proposed in this paper. The basic vector action time of SVPWM method is derived in detail, employing vector space decomposition transformation approach. Compared with the previous algorithm, this strategy is able to overcome the inherent shortcomings of the four-vector SVPWM, and it achieves smooth transitions from linear to overmodulation region. Simulation and experimental analyses demonstrate the effectiveness and feasibility of the proposed strategy.

Adaptive Flux Weakening Controller for Dual Three-Phase PMSM Drives in Vector Space Decomposition

2021 ◽  
Author(s):  
Wesam Taha ◽  
Diego F. Valencia ◽  
Zisui Zhang ◽  
Babak Nahid-Mobarakeh ◽  
Ali Emadi
Keyword(s):  
Vector Space ◽  
Space Decomposition ◽  
Three Phase ◽  
Flux Weakening

scholarly journals On Speed Control of a Permanent Magnet Synchronous Motor with Current Predictive Compensation

Energies ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 65 ◽  
Author(s):  
Meiling Tang ◽  
Shengxian Zhuang
Keyword(s):  
Permanent Magnet ◽  
Current Model ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Sampling Step ◽  
Phase Current ◽  
Speed Tracking ◽  
Three Phase ◽  
Time Calculation ◽  
Predictive Controller

In this study, a current model predictive controller (MPC) is designed for a permanent magnet synchronous motor (PMSM) where the speed of the motor can be regulated precisely. First, the mathematical model, the specifications, and the drive topology of the PMSM are introduced, followed by an elaboration of the design of the MPC. The MPC is then used to predict the current in a discrete-time calculation. The phase current at the next sampling step can be estimated to compensate the current errors, thereby modifying the three-phase currents of the motor. Next, Simulink modeling of the MPC algorithm is given, with three-phase current waveforms compared when the motor is operated under the designed MPC and a traditional vector control for PMSM. Finally, the speed responses are measured when the motor is controlled by traditional control methods and the MPC approach under varied speed references and loads. In comparison with traditional controllers, both the simulation and the experimental results suggest that the MPC for the PMSM can improve the speed-tracking performance of the motor and that this motor has a fast speed response and small steady-state errors under the rated load.

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