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.

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.

Sign in / Sign up

Export Citation Format

Share Document