scholarly journals Analysis of the effect neutral connection mode for permanent magnet synchronous generator-vienna rectifier set

2020 ◽  
Vol 152 ◽  
pp. 03010
Author(s):  
Mohamed Amine Bettouche ◽  
Mohamed Fouad Benkhoris ◽  
Jean-Claude Le Claire ◽  
Djamal Aouzellag ◽  
Kaci Ghedamsi ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Fault Tolerant ◽  
Mechanical Energy ◽  
Dynamic Performance ◽  
Synchronous Generator ◽  
High Energy ◽  
Switching Frequency ◽  
Permanent Magnet Synchronous Generator ◽  
Vienna Rectifier ◽  
The Impact

In this paper, it was considered to investigate a new electrical architecture for the conversion of mechanical energy from renewable sources into electrical energy, fault tolerant and high energy and dynamic performance for the exploitation of marine renewable energy (MRE). The architecture to be investigated concerns a three-phase permanent magnet synchronous generator combined with a Vienna rectifier, with a topology that minimizes the number of active switches to increase the reliability of the energy conversion chain. Despite the high non-linearity of this architecture, this control is made possible through to the dynamic performance and control of the maximum switching frequency of the self-oscillating controller called the Phase-Shift Self-Oscillating Current-Controller (PSSOCC). The study of the impact of the connection of the PMSG neutral to the mid-point of the DC bus is being investigated.

scholarly journals Study and Optimal Design of a Direct-Driven Stator Coreless Axial Flux Permanent Magnet Synchronous Generator with Improved Dynamic Performance

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3162 ◽  
Author(s):  
Wenqiang Wang ◽  
Weijun Wang ◽  
Hongju Mi ◽  
Longbo Mao ◽  
Guoping Zhang ◽  
...  
Keyword(s):  
Optimal Design ◽  
Permanent Magnet ◽  
Optimization Design ◽  
Dynamic Performance ◽  
Design Procedure ◽  
Synchronous Generator ◽  
Variable Speed ◽  
Axial Flux ◽  
Permanent Magnet Synchronous Generator ◽  
Dynamic Performance Analysis

In this paper, the study and optimization design of stator coreless axial flux permanent magnet synchronous generators is presented for direct driven variable speed renewable energy generation system applications while considering the requirement of reliability and dynamic performance with unstable input conditions. The dynamic analytical model is developed based on the investigation of the axial flux permanent magnet synchronous generator (AFPMSG) structure and basic electromagnetic equations to find out the relationship between generator parameters and dynamic performance. Simulation via the MATLAB/Simulink platform is carried out to obtain the sensitivity of dynamic performance to generator parameters. An integrated optimization model that takes the key parameters as variables is proposed, aiming to improve the mechanical dynamic performance of AFPMSG. For accurate design, the design procedure is modified by combining the nonlinear iterative genetic algorithm (GA) to perform the calculation. A 3_kW AFPMSG is optimally designed to minimize the output voltage overshooting—the index of dynamic performance for direct driven variable speed generation application. Finally, a three-dimensional (3D) finite element model of the generator is established by Maxwell ANSOFT, and the simulation results confirm the validity of the dynamic performance analysis and optimal design procedure.

scholarly journals Electromagnetic Analysis and Experimental Study to Optimize Force Characteristics of Permanent Magnet Synchronous Generator for Wave Energy Converter Using Subdomain Method

Processes ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1825
Author(s):  
Kyung-Hun Shin ◽  
Tae-Kyoung Bang ◽  
Kyong-Hwan Kim ◽  
Keyyong Hong ◽  
Jang-Young Choi
Keyword(s):  
Experimental Study ◽  
Permanent Magnet ◽  
Wave Energy ◽  
Synchronous Generator ◽  
High Energy ◽  
High Energy Density ◽  
Electromagnetic Analysis ◽  
Electromagnetic Excitation ◽  
Permanent Magnet Synchronous Generator ◽  
Electromagnetic Forces

This paper presents an electromagnetic analysis and experimental verification to optimize the noise, vibration, and harshness (NVH) characteristics of a permanent magnet synchronous generator (PMSG) for wave energy converters (WECs). WECs applicable to breakwater installed in island areas require a wider operating range and a robust design for maintenance compared with wind-turbine systems. Owing to the use of a permanent magnet with a high energy density, the PMSG has a higher power density than other types of generators; however, strong electromagnetic excitation forces that affect the NVH characteristics are generated. Therefore, in this study, the electromagnetic forces are analyzed through an electromagnetic-field analysis using a subdomain analytical method. Based on the analytical solution, electromagnetic forces were determined. Four electromagnetic excitation forces were classified, and the methods for reducing electromagnetic excitation forces are presented here. Finally, a method for evaluating the system resonance through electromechanical analysis is presented. The proposed analysis, optimization, and experimental study are validated through comparison with finite-element analysis and experimental results.

DTC-SVM Control for Permanent Magnet Synchronous Generator based Variable Speed Wind Turbine

2017 ◽  
Vol 8 (4) ◽  
pp. 1732 ◽  
Author(s):  
Youness El Mourabit ◽  
Aziz Derouich ◽  
Abdelaziz El Ghzizal ◽  
Najib El Ouanjli ◽  
Othmane Zamzoum
Keyword(s):  
Wind Turbine ◽  
Permanent Magnet ◽  
Production Efficiency ◽  
Direct Torque Control ◽  
Electric Energy ◽  
Synchronous Generator ◽  
Torque Ripple ◽  
Torque Control ◽  
Switching Frequency ◽  
Permanent Magnet Synchronous Generator

<span lang="EN-US">In this paper, we are interested in improving the production efficiency for electric energy extracted from a wind turbine, based on a permanent magnet synchronous generator (PMSG) that we want to improve the performance by means of direct torque control with space vector modulation (DTC-SVM). The choice of this control comes from the deficiencies inherent to the conventional DTC, which includes variable switching frequency, torque ripple and implementation complexity. First we focuse on the wind energy conversion system (WECS) modeling using the PMSG machine, as well as the detailed study for the control DTC-SVM operating principle. Then, system performance is tested and compared by simulation in the MATLAB/Simulink in terms of follow instructions, robustness to the variations of the external system elements, and effectiveness of the expected method.</span>

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